keyword
https://read.qxmd.com/read/36605814/optical-properties-of-extreme-tellurium-nanowires-formed-in-subnanometer-diameter-channels
#41
JOURNAL ARTICLE
Vladimir V Poborchii, Alexander V Fokin, Alexander A Shklyaev
Single tellurium (Te) chains attract much attention as extreme nanowires with unique electronic and spintronic properties. Here, we encapsulate Te from a melt into channels of zeolites AFI (∼0.73 nm-channel diameter) and mordenite (MOR, ∼0.67 × 0.7 nm2 channel cross-section) via high-pressure injection. Using polarized Raman and optical absorption spectra (RS and OAS) of zeolite single crystals with Te (AFI-Te and MOR-Te), we discriminate between features of Te chains and rings formed in the zeolites...
December 20, 2022: Nanoscale advances
https://read.qxmd.com/read/36541508/disconnected-entanglement-entropy-as-a-marker-of-edge-modes-in-a-periodically-driven-kitaev-chain
#42
JOURNAL ARTICLE
Saikat Mondal, Diptiman Sen, Amit Dutta
We study the disconnected entanglement entropy (DEE) of a Kitaev chain in which the chemical potential is periodically modulated with δ -function pulses within the framework of Floquet theory. For this driving protocol, the DEE of a sufficiently large system with open boundary conditions turns out to be integer-quantized, with the integer being equal to the number of Majorana edge modes localized at each edge of the chain generated by the periodic driving, thereby establishing the DEE as a marker for detecting Floquet Majorana edge modes...
December 16, 2022: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://read.qxmd.com/read/36396962/planar-thermal-hall-effect-of-topological-bosons-in-the-kitaev-magnet-%C3%AE-rucl-3
#43
JOURNAL ARTICLE
Peter Czajka, Tong Gao, Max Hirschberger, Paula Lampen-Kelley, Arnab Banerjee, Nicholas Quirk, David G Mandrus, Stephen E Nagler, N P Ong
The honeycomb magnet α-RuCl3 has attracted considerable interest because it is proximate to the Kitaev Hamiltonian whose excitations are Majoranas and vortices. The thermal Hall conductivity κxy of Majorana fermions is predicted to be half-quantized. Half-quantization of κxy /T (T, temperature) was recently reported, but this observation has proven difficult to reproduce. Here, we report detailed measurements of κxy on α-RuCl3 with the magnetic field B ∥ a (zigzag axis). In our experiment, κxy /T is observed to be strongly temperature dependent between 0...
November 17, 2022: Nature Materials
https://read.qxmd.com/read/36332260/solvable-3d-kondo-lattice-exhibiting-pair-density-wave-odd-frequency-pairing-and-order-fractionalization
#44
JOURNAL ARTICLE
Piers Coleman, Aaditya Panigrahi, Alexei Tsvelik
The Kondo lattice model plays a key role in our understanding of quantum materials, but a lack of small parameters has posed a long-standing problem. We present a three-dimensional S=1/2 Kondo lattice model describing a spin liquid within an electron sea. Strong correlations in the spin liquid are treated exactly, enabling a controlled analytical approach. Like a Peierls or BCS phase, a logarithmically divergent susceptibility leads to an instability into a new phase at arbitrarily small Kondo coupling. Our solution captures a plethora of emergent phenomena, including odd-frequency pairing, pair density wave formation and order fractionalization...
October 21, 2022: Physical Review Letters
https://read.qxmd.com/read/36317366/topological-states-of-generalized-dissipative-majorana-wires
#45
JOURNAL ARTICLE
Farokhnaz Hosseinifar, Ali Ghorbanzadeh Moghaddam
We study the generalized one-dimensional (1D) quantum dissipative models corresponding to a Majorana wire which can possess more than one Majorana bound state at each end. The system consists of a 1D fermionic open quantum system whose dynamics is governed by a quadratic Lindblad equation. Using the adjoint Lindblad equation for the fermionic two-point correlations, we find the gaps in the damping and purity spectra of a generic 1D model. Then, using the symmetry-based classification, we show that a winding number as the topological invariant can be defined which distinguishes different steady states of the system in the presence of damping and purity gaps...
October 31, 2022: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://read.qxmd.com/read/36220017/chiral-majorana-fermions-in-two-dimensional-square-lattice-antiferromagnet-with-proximity-induced-superconductivity
#46
JOURNAL ARTICLE
Ma Luo
Proximity-induced superconductivity in a two-dimensional square-lattice antiferromagnet with spin-orbit coupling and Combination of proximity-induced superconductivity and ferromagnetic exchange field in a two-dimensional square-lattice antiferromagnet with spin-orbit coupling and nonsymmorphic symmetry can induce a topological superconductor phase with chiral Majorana edge states. The lattice model of the Bogoliubov-de Gennes (BdG) Hamiltonian was applied to study the phase diagram of bulks and chiral Majorana edge states in nanoribbons...
October 11, 2022: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://read.qxmd.com/read/36215229/gate-tunable-anomalous-hall-effect-in-stacked-van-der-waals-ferromagnetic-insulator-topological-insulator-heterostructures
#47
JOURNAL ARTICLE
Andres E Llacsahuanga Allcca, Xing-Chen Pan, Ireneusz Miotkowski, Katsumi Tanigaki, Yong P Chen
The search of novel topological states, such as the quantum anomalous Hall insulator and chiral Majorana fermions, has motivated different schemes to introduce magnetism into topological insulators. A promising scheme is using the magnetic proximity effect (MPE), where a ferromagnetic insulator magnetizes the topological insulator. Most of these heterostructures are synthesized by growth techniques which prevent mixing many of the available ferromagnetic and topological insulators due to difference in growth conditions...
October 10, 2022: Nano Letters
https://read.qxmd.com/read/36018635/search-for-subsolar-mass-binaries-in-the-first-half-of-advanced-ligo-s-and-advanced-virgo-s-third-observing-run
#48
JOURNAL ARTICLE
R Abbott, T D Abbott, F Acernese, K Ackley, C Adams, N Adhikari, R X Adhikari, V B Adya, C Affeldt, D Agarwal, M Agathos, K Agatsuma, N Aggarwal, O D Aguiar, L Aiello, A Ain, P Ajith, S Albanesi, A Allocca, P A Altin, A Amato, C Anand, S Anand, A Ananyeva, S B Anderson, W G Anderson, T Andrade, N Andres, T Andrić, S V Angelova, S Ansoldi, J M Antelis, S Antier, S Appert, K Arai, M C Araya, J S Areeda, M Arène, N Arnaud, S M Aronson, K G Arun, Y Asali, G Ashton, M Assiduo, S M Aston, P Astone, F Aubin, C Austin, S Babak, F Badaracco, M K M Bader, C Badger, S Bae, A M Baer, S Bagnasco, Y Bai, J Baird, M Ball, G Ballardin, S W Ballmer, A Balsamo, G Baltus, S Banagiri, D Bankar, J C Barayoga, C Barbieri, B C Barish, D Barker, P Barneo, F Barone, B Barr, L Barsotti, M Barsuglia, D Barta, J Bartlett, M A Barton, I Bartos, R Bassiri, A Basti, M Bawaj, J C Bayley, A C Baylor, M Bazzan, B Bécsy, V M Bedakihale, M Bejger, I Belahcene, V Benedetto, D Beniwal, T F Bennett, J D Bentley, M BenYaala, F Bergamin, B K Berger, S Bernuzzi, C P L Berry, D Bersanetti, A Bertolini, J Betzwieser, D Beveridge, R Bhandare, U Bhardwaj, D Bhattacharjee, S Bhaumik, I A Bilenko, G Billingsley, S Bini, R Birney, O Birnholtz, S Biscans, M Bischi, S Biscoveanu, A Bisht, B Biswas, M Bitossi, M-A Bizouard, J K Blackburn, C D Blair, D G Blair, R M Blair, F Bobba, N Bode, M Boer, G Bogaert, M Boldrini, L D Bonavena, F Bondu, E Bonilla, R Bonnand, P Booker, B A Boom, R Bork, V Boschi, N Bose, S Bose, V Bossilkov, V Boudart, Y Bouffanais, A Bozzi, C Bradaschia, P R Brady, A Bramley, A Branch, M Branchesi, J E Brau, M Breschi, T Briant, J H Briggs, A Brillet, M Brinkmann, P Brockill, A F Brooks, J Brooks, D D Brown, S Brunett, G Bruno, R Bruntz, J Bryant, T Bulik, H J Bulten, A Buonanno, R Buscicchio, D Buskulic, C Buy, R L Byer, L Cadonati, G Cagnoli, C Cahillane, J Calderón Bustillo, J D Callaghan, T A Callister, E Calloni, J Cameron, J B Camp, M Canepa, S Canevarolo, M Cannavacciuolo, K C Cannon, H Cao, E Capote, G Carapella, F Carbognani, J B Carlin, M F Carney, M Carpinelli, G Carrillo, G Carullo, T L Carver, J Casanueva Diaz, C Casentini, G Castaldi, S Caudill, M Cavaglià, F Cavalier, R Cavalieri, M Ceasar, G Cella, P Cerdá-Durán, E Cesarini, W Chaibi, K Chakravarti, S Chalathadka Subrahmanya, E Champion, C-H Chan, C Chan, C L Chan, K Chan, K Chandra, P Chanial, S Chao, P Charlton, E A Chase, E Chassande-Mottin, C Chatterjee, Debarati Chatterjee, Deep Chatterjee, M Chaturvedi, S Chaty, K Chatziioannou, H Y Chen, J Chen, X Chen, Y Chen, Z Chen, H Cheng, C K Cheong, H Y Cheung, H Y Chia, F Chiadini, G Chiarini, R Chierici, A Chincarini, M L Chiofalo, A Chiummo, G Cho, H S Cho, R K Choudhary, S Choudhary, N Christensen, Q Chu, S Chua, K W Chung, G Ciani, P Ciecielag, M Cieślar, M Cifaldi, A A Ciobanu, R Ciolfi, F Cipriano, A Cirone, F Clara, E N Clark, J A Clark, L Clarke, P Clearwater, S Clesse, F Cleva, E Coccia, E Codazzo, P-F Cohadon, D E Cohen, L Cohen, M Colleoni, C G Collette, A Colombo, M Colpi, C M Compton, M Constancio, L Conti, S J Cooper, P Corban, T R Corbitt, I Cordero-Carrión, S Corezzi, K R Corley, N Cornish, D Corre, A Corsi, S Cortese, C A Costa, R Cotesta, M W Coughlin, J-P Coulon, S T Countryman, B Cousins, P Couvares, D M Coward, M J Cowart, D C Coyne, R Coyne, J D E Creighton, T D Creighton, A W Criswell, M Croquette, S G Crowder, J R Cudell, T J Cullen, A Cumming, R Cummings, L Cunningham, E Cuoco, M Curyło, P Dabadie, T Dal Canton, S Dall'Osso, G Dálya, A Dana, L M DaneshgaranBajastani, B D'Angelo, S Danilishin, S D'Antonio, K Danzmann, C Darsow-Fromm, A Dasgupta, L E H Datrier, S Datta, V Dattilo, I Dave, M Davier, G S Davies, D Davis, M C Davis, E J Daw, R Dean, D DeBra, M Deenadayalan, J Degallaix, M De Laurentis, S Deléglise, V Del Favero, F De Lillo, N De Lillo, W Del Pozzo, L M DeMarchi, F De Matteis, V D'Emilio, N Demos, T Dent, A Depasse, R De Pietri, R De Rosa, C De Rossi, R DeSalvo, R De Simone, S Dhurandhar, M C Díaz, M Diaz-Ortiz, N A Didio, T Dietrich, L Di Fiore, C Di Fronzo, C Di Giorgio, F Di Giovanni, M Di Giovanni, T Di Girolamo, A Di Lieto, B Ding, S Di Pace, I Di Palma, F Di Renzo, A K Divakarla, A Dmitriev, Z Doctor, L D'Onofrio, F Donovan, K L Dooley, S Doravari, I Dorrington, M Drago, J C Driggers, Y Drori, J-G Ducoin, P Dupej, O Durante, D D'Urso, P-A Duverne, S E Dwyer, C Eassa, P J Easter, M Ebersold, T Eckhardt, G Eddolls, B Edelman, T B Edo, O Edy, A Effler, J Eichholz, S S Eikenberry, M Eisenmann, R A Eisenstein, A Ejlli, E Engelby, L Errico, R C Essick, H Estellés, D Estevez, Z Etienne, T Etzel, M Evans, T M Evans, B E Ewing, V Fafone, H Fair, S Fairhurst, A M Farah, S Farinon, B Farr, W M Farr, N W Farrow, E J Fauchon-Jones, G Favaro, M Favata, M Fays, M Fazio, J Feicht, M M Fejer, B Fekecs, E Fenyvesi, D L Ferguson, A Fernandez-Galiana, I Ferrante, T A Ferreira, F Fidecaro, P Figura, I Fiori, M Fishbach, R P Fisher, R Fittipaldi, V Fiumara, R Flaminio, E Floden, H Fong, J A Font, B Fornal, P W F Forsyth, A Franke, S Frasca, F Frasconi, C Frederick, J P Freed, Z Frei, A Freise, R Frey, P Fritschel, V V Frolov, G G Fronzé, P Fulda, M Fyffe, H A Gabbard, B U Gadre, J R Gair, J Gais, S Galaudage, R Gamba, D Ganapathy, A Ganguly, S G Gaonkar, B Garaventa, C García-Núñez, C García-Quirós, F Garufi, B Gateley, S Gaudio, V Gayathri, G Gemme, A Gennai, J George, O Gerberding, L Gergely, P Gewecke, S Ghonge, Abhirup Ghosh, Archisman Ghosh, Shaon Ghosh, Shrobana Ghosh, B Giacomazzo, L Giacoppo, J A Giaime, K D Giardina, D R Gibson, C Gier, M Giesler, P Giri, F Gissi, J Glanzer, A E Gleckl, P Godwin, E Goetz, R Goetz, N Gohlke, B Goncharov, G González, A Gopakumar, M Gosselin, R Gouaty, D W Gould, B Grace, A Grado, M Granata, V Granata, A Grant, S Gras, P Grassia, C Gray, R Gray, G Greco, A C Green, R Green, A M Gretarsson, E M Gretarsson, D Griffith, W Griffiths, H L Griggs, G Grignani, A Grimaldi, S J Grimm, H Grote, S Grunewald, P Gruning, D Guerra, G M Guidi, A R Guimaraes, G Guixé, H K Gulati, H-K Guo, Y Guo, Anchal Gupta, Anuradha Gupta, P Gupta, E K Gustafson, R Gustafson, F Guzman, L Haegel, O Halim, E D Hall, E Z Hamilton, G Hammond, M Haney, J Hanks, C Hanna, M D Hannam, O Hannuksela, H Hansen, T J Hansen, J Hanson, T Harder, T Hardwick, K Haris, J Harms, G M Harry, I W Harry, D Hartwig, B Haskell, R K Hasskew, C-J Haster, K Haughian, F J Hayes, J Healy, A Heidmann, A Heidt, M C Heintze, J Heinze, J Heinzel, H Heitmann, F Hellman, P Hello, A F Helmling-Cornell, G Hemming, M Hendry, I S Heng, E Hennes, J Hennig, M H Hennig, A G Hernandez, F Hernandez Vivanco, M Heurs, S Hild, P Hill, A S Hines, S Hochheim, D Hofman, J N Hohmann, D G Holcomb, N A Holland, I J Hollows, Z J Holmes, K Holt, D E Holz, P Hopkins, J Hough, S Hourihane, E J Howell, C G Hoy, D Hoyland, A Hreibi, Y Hsu, Y Huang, M T Hübner, A D Huddart, B Hughey, V Hui, S Husa, S H Huttner, R Huxford, T Huynh-Dinh, B Idzkowski, A Iess, C Ingram, M Isi, K Isleif, B R Iyer, V JaberianHamedan, T Jacqmin, S J Jadhav, S P Jadhav, A L James, A Z Jan, K Jani, J Janquart, K Janssens, N N Janthalur, P Jaranowski, D Jariwala, R Jaume, A C Jenkins, K Jenner, M Jeunon, W Jia, G R Johns, A W Jones, D I Jones, J D Jones, P Jones, R Jones, R J G Jonker, L Ju, J Junker, V Juste, C V Kalaghatgi, V Kalogera, B Kamai, S Kandhasamy, G Kang, J B Kanner, Y Kao, S J Kapadia, D P Kapasi, S Karat, C Karathanasis, S Karki, R Kashyap, M Kasprzack, W Kastaun, S Katsanevas, E Katsavounidis, W Katzman, T Kaur, K Kawabe, F Kéfélian, D Keitel, J S Key, S Khadka, F Y Khalili, S Khan, E A Khazanov, N Khetan, M Khursheed, N Kijbunchoo, C Kim, J C Kim, K Kim, W S Kim, Y-M Kim, C Kimball, M Kinley-Hanlon, R Kirchhoff, J S Kissel, L Kleybolte, S Klimenko, A M Knee, T D Knowles, E Knyazev, P Koch, G Koekoek, S Koley, P Kolitsidou, M Kolstein, K Komori, V Kondrashov, A Kontos, N Koper, M Korobko, M Kovalam, D B Kozak, V Kringel, N V Krishnendu, A Królak, G Kuehn, F Kuei, P Kuijer, A Kumar, P Kumar, Rahul Kumar, Rakesh Kumar, K Kuns, S Kuwahara, P Lagabbe, D Laghi, E Lalande, T L Lam, A Lamberts, M Landry, B B Lane, R N Lang, J Lange, B Lantz, I La Rosa, A Lartaux-Vollard, P D Lasky, M Laxen, A Lazzarini, C Lazzaro, P Leaci, S Leavey, Y K Lecoeuche, H M Lee, H W Lee, J Lee, K Lee, J Lehmann, A Lemaître, N Leroy, N Letendre, C Levesque, Y Levin, J N Leviton, K Leyde, A K Y Li, B Li, J Li, T G F Li, X Li, F Linde, S D Linker, J N Linley, T B Littenberg, J Liu, K Liu, X Liu, F Llamas, M Llorens-Monteagudo, R K L Lo, A Lockwood, L T London, A Longo, D Lopez, M Lopez Portilla, M Lorenzini, V Loriette, M Lormand, G Losurdo, T P Lott, J D Lough, C O Lousto, G Lovelace, J F Lucaccioni, H Lück, D Lumaca, A P Lundgren, J E Lynam, R Macas, M MacInnis, D M Macleod, I A O MacMillan, A Macquet, I Magaña Hernandez, C Magazzù, R M Magee, R Maggiore, M Magnozzi, S Mahesh, E Majorana, C Makarem, I Maksimovic, S Maliakal, A Malik, N Man, V Mandic, V Mangano, J L Mango, G L Mansell, M Manske, M Mantovani, M Mapelli, F Marchesoni, F Marion, Z Mark, S Márka, Z Márka, C Markakis, A S Markosyan, A Markowitz, E Maros, A Marquina, S Marsat, F Martelli, I W Martin, R M Martin, M Martinez, V A Martinez, V Martinez, K Martinovic, D V Martynov, E J Marx, H Masalehdan, K Mason, E Massera, A Masserot, T J Massinger, M Masso-Reid, S Mastrogiovanni, A Matas, M Mateu-Lucena, F Matichard, M Matiushechkina, N Mavalvala, J J McCann, R McCarthy, D E McClelland, P K McClincy, S McCormick, L McCuller, G I McGhee, S C McGuire, C McIsaac, J McIver, T McRae, S T McWilliams, D Meacher, M Mehmet, A K Mehta, Q Meijer, A Melatos, D A Melchor, G Mendell, A Menendez-Vazquez, C S Menoni, R A Mercer, L Mereni, K Merfeld, E L Merilh, J D Merritt, M Merzougui, S Meshkov, C Messenger, C Messick, P M Meyers, F Meylahn, A Mhaske, A Miani, H Miao, I Michaloliakos, C Michel, H Middleton, L Milano, A Miller, A L Miller, B Miller, M Millhouse, J C Mills, E Milotti, O Minazzoli, Y Minenkov, Ll M Mir, M Miravet-Tenés, C Mishra, T Mishra, T Mistry, S Mitra, V P Mitrofanov, G Mitselmakher, R Mittleman, Geoffrey Mo, E Moguel, K Mogushi, S R P Mohapatra, S R Mohite, I Molina, M Molina-Ruiz, M Mondin, M Montani, C J Moore, D Moraru, F Morawski, A More, C Moreno, G Moreno, S Morisaki, B Mours, C M Mow-Lowry, S Mozzon, F Muciaccia, Arunava Mukherjee, D Mukherjee, Soma Mukherjee, Subroto Mukherjee, Suvodip Mukherjee, N Mukund, A Mullavey, J Munch, E A Muñiz, P G Murray, R Musenich, S Muusse, S L Nadji, A Nagar, V Napolano, I Nardecchia, L Naticchioni, B Nayak, R K Nayak, B F Neil, J Neilson, G Nelemans, T J N Nelson, M Nery, P Neubauer, A Neunzert, K Y Ng, S W S Ng, C Nguyen, P Nguyen, T Nguyen, S A Nichols, S Nissanke, E Nitoglia, F Nocera, M Norman, C North, L K Nuttall, J Oberling, B D O'Brien, J O'Dell, E Oelker, G Oganesyan, J J Oh, S H Oh, F Ohme, H Ohta, M A Okada, C Olivetto, R Oram, B O'Reilly, R G Ormiston, N D Ormsby, L F Ortega, R O'Shaughnessy, E O'Shea, S Ossokine, C Osthelder, D J Ottaway, H Overmier, A E Pace, G Pagano, M A Page, G Pagliaroli, A Pai, S A Pai, J R Palamos, O Palashov, C Palomba, H Pan, P K Panda, P T H Pang, C Pankow, F Pannarale, B C Pant, F H Panther, F Paoletti, A Paoli, A Paolone, H Park, W Parker, D Pascucci, A Pasqualetti, R Passaquieti, D Passuello, M Patel, M Pathak, B Patricelli, A S Patron, S Paul, E Payne, M Pedraza, M Pegoraro, A Pele, S Penn, A Perego, A Pereira, T Pereira, C J Perez, C Périgois, C C Perkins, A Perreca, S Perriès, J Petermann, D Petterson, H P Pfeiffer, K A Pham, K S Phukon, O J Piccinni, M Pichot, M Piendibene, F Piergiovanni, L Pierini, V Pierro, G Pillant, M Pillas, F Pilo, L Pinard, I M Pinto, M Pinto, K Piotrzkowski, M Pirello, M D Pitkin, E Placidi, L Planas, W Plastino, C Pluchar, R Poggiani, E Polini, D Y T Pong, S Ponrathnam, P Popolizio, E K Porter, R Poulton, J Powell, M Pracchia, T Pradier, A K Prajapati, K Prasai, R Prasanna, G Pratten, M Principe, G A Prodi, L Prokhorov, P Prosposito, L Prudenzi, A Puecher, M Punturo, F Puosi, P Puppo, M Pürrer, H Qi, V Quetschke, R Quitzow-James, F J Raab, G Raaijmakers, H Radkins, N Radulesco, P Raffai, S X Rail, S Raja, C Rajan, K E Ramirez, T D Ramirez, A Ramos-Buades, J Rana, P Rapagnani, U D Rapol, A Ray, V Raymond, N Raza, M Razzano, J Read, L A Rees, T Regimbau, L Rei, S Reid, S W Reid, D H Reitze, P Relton, A Renzini, P Rettegno, M Rezac, F Ricci, D Richards, J W Richardson, L Richardson, G Riemenschneider, K Riles, S Rinaldi, K Rink, M Rizzo, N A Robertson, R Robie, F Robinet, A Rocchi, S Rodriguez, L Rolland, J G Rollins, M Romanelli, R Romano, C L Romel, A Romero-Rodríguez, I M Romero-Shaw, J H Romie, S Ronchini, L Rosa, C A Rose, D Rosińska, M P Ross, S Rowan, S J Rowlinson, S Roy, Santosh Roy, Soumen Roy, D Rozza, P Ruggi, K Ryan, S Sachdev, T Sadecki, J Sadiq, M Sakellariadou, O S Salafia, L Salconi, M Saleem, F Salemi, A Samajdar, E J Sanchez, J H Sanchez, L E Sanchez, N Sanchis-Gual, J R Sanders, A Sanuy, T R Saravanan, N Sarin, B Sassolas, H Satari, B S Sathyaprakash, O Sauter, R L Savage, D Sawant, H L Sawant, S Sayah, D Schaetzl, M Scheel, J Scheuer, M Schiworski, P Schmidt, S Schmidt, R Schnabel, M Schneewind, R M S Schofield, A Schönbeck, B W Schulte, B F Schutz, E Schwartz, J Scott, S M Scott, M Seglar-Arroyo, D Sellers, A S Sengupta, D Sentenac, E G Seo, V Sequino, A Sergeev, Y Setyawati, T Shaffer, M S Shahriar, B Shams, A Sharma, P Sharma, P Shawhan, N S Shcheblanov, M Shikauchi, D H Shoemaker, D M Shoemaker, S ShyamSundar, M Sieniawska, D Sigg, L P Singer, D Singh, N Singh, A Singha, A M Sintes, V Sipala, V Skliris, B J J Slagmolen, T J Slaven-Blair, J Smetana, J R Smith, R J E Smith, J Soldateschi, S N Somala, E J Son, K Soni, S Soni, V Sordini, F Sorrentino, N Sorrentino, R Soulard, T Souradeep, E Sowell, V Spagnuolo, A P Spencer, M Spera, R Srinivasan, A K Srivastava, V Srivastava, K Staats, C Stachie, D A Steer, J Steinlechner, S Steinlechner, S Stevenson, D J Stops, M Stover, K A Strain, L C Strang, G Stratta, A Strunk, R Sturani, A L Stuver, S Sudhagar, V Sudhir, H G Suh, T Z Summerscales, H Sun, L Sun, S Sunil, A Sur, J Suresh, P J Sutton, B L Swinkels, M J Szczepańczyk, P Szewczyk, M Tacca, S C Tait, C J Talbot, C Talbot, A J Tanasijczuk, D B Tanner, D Tao, L Tao, E N Tapia San Martín, C Taranto, J D Tasson, R Tenorio, J E Terhune, L Terkowski, M P Thirugnanasambandam, M Thomas, P Thomas, J E Thompson, S R Thondapu, K A Thorne, E Thrane, Shubhanshu Tiwari, Srishti Tiwari, V Tiwari, A M Toivonen, K Toland, A E Tolley, M Tonelli, A Torres-Forné, C I Torrie, I Tosta E Melo, D Töyrä, A Trapananti, F Travasso, G Traylor, M Trevor, M C Tringali, A Tripathee, L Troiano, A Trovato, L Trozzo, R J Trudeau, D S Tsai, D Tsai, K W Tsang, M Tse, R Tso, L Tsukada, D Tsuna, T Tsutsui, K Turbang, M Turconi, A S Ubhi, R P Udall, K Ueno, C S Unnikrishnan, A L Urban, A Utina, H Vahlbruch, G Vajente, A Vajpeyi, G Valdes, M Valentini, V Valsan, N van Bakel, M van Beuzekom, J F J van den Brand, C Van Den Broeck, D C Vander-Hyde, L van der Schaaf, J V van Heijningen, J Vanosky, N van Remortel, M Vardaro, A F Vargas, V Varma, M Vasúth, A Vecchio, G Vedovato, J Veitch, P J Veitch, J Venneberg, G Venugopalan, D Verkindt, P Verma, Y Verma, D Veske, F Vetrano, A Viceré, S Vidyant, A D Viets, A Vijaykumar, V Villa-Ortega, J-Y Vinet, A Virtuoso, S Vitale, T Vo, H Vocca, E R G von Reis, J S A von Wrangel, C Vorvick, S P Vyatchanin, L E Wade, M Wade, K J Wagner, R C Walet, M Walker, G S Wallace, L Wallace, S Walsh, J Z Wang, W H Wang, R L Ward, J Warner, M Was, N Y Washington, J Watchi, B Weaver, S A Webster, M Weinert, A J Weinstein, R Weiss, C M Weller, F Wellmann, L Wen, P Weßels, K Wette, J T Whelan, D D White, B F Whiting, C Whittle, D Wilken, D Williams, M J Williams, A R Williamson, J L Willis, B Willke, D J Wilson, W Winkler, C C Wipf, T Wlodarczyk, G Woan, J Woehler, J K Wofford, I C F Wong, D S Wu, D M Wysocki, L Xiao, H Yamamoto, F W Yang, L Yang, Yang Yang, Z Yang, M J Yap, D W Yeeles, A B Yelikar, M Ying, J Yoo, Hang Yu, Haocun Yu, A Zadrożny, M Zanolin, T Zelenova, J-P Zendri, M Zevin, J Zhang, L Zhang, T Zhang, Y Zhang, C Zhao, G Zhao, Yue Zhao, R Zhou, Z Zhou, X J Zhu, A B Zimmerman, M E Zucker, J Zweizig, Donghui Jeong, Sarah Shandera
We report on a search for compact binary coalescences where at least one binary component has a mass between 0.2  M_{⊙} and 1.0  M_{⊙} in Advanced LIGO and Advanced Virgo data collected between 1 April 2019 1500 UTC and 1 October 2019 1500 UTC. We extend our previous analyses in two main ways: we include data from the Virgo detector and we allow for more unequal mass systems, with mass ratio q≥0.1. We do not report any gravitational-wave candidates. The most significant trigger has a false alarm rate of 0...
August 5, 2022: Physical Review Letters
https://read.qxmd.com/read/35926195/superconducting-proximity-in-intrinsic-magnetic-topological-insulator-mnbi-2-te-4-nbn-hybrid-device-modulated-by-coulomb-blockade-effect
#49
JOURNAL ARTICLE
Jingjing Chen, Wenzheng Xu, Zhenbing Tan, Zhencun Pan, Pengfei Zhu, Zhi-Min Liao, Dapeng Yu
The combination of nontrivial topology, magnetism, and superconductivity could offer the potential to realize exotic excitations of quasiparticles. MnBi2 Te4 , as an intrinsic magnetic topological insulator, may be a good platform to create Majorana fermions if coupled to an s-wave superconductor. Here, we report the transport properties of a MnBi2 Te4 -NbN hybrid device. This device exhibits clear Coulomb blockade oscillations. We observe a large zero-bias conductance peak that exists over considerable changes in gate voltage, magnetic field, and temperature, which is interpreted as a not fully developed supercurrent...
August 4, 2022: Nano Letters
https://read.qxmd.com/read/35867454/high-throughput-investigations-of-topological-and-nodal-superconductors
#50
JOURNAL ARTICLE
Feng Tang, Seishiro Ono, Xiangang Wan, Haruki Watanabe
The theory of symmetry indicators has enabled database searches for topological materials in normal conducting phases, which has led to several encyclopedic topological material databases. To date, such a database for topological superconductors is yet to be achieved because of the lack of information about pairing symmetries of realistic materials. In this Letter, sidestepping this issue, we tackle an alternative problem: the predictions of topological and nodal superconductivity in materials for each single-valued representation of point groups...
July 8, 2022: Physical Review Letters
https://read.qxmd.com/read/35834754/electronic-structure-of-pb-adsorbed-surfaces-of-intrinsic-magnetic-topological-insulators
#51
JOURNAL ARTICLE
Ilya I Klimovskikh, Dmitry A Estyunin, Tatyana P Makarova, Oleg E Tereshchenko, Konstantin A Kokh, Alexander M Shikin
Recently discovered intrinsic magnetic topological insulators (IMTIs) constitute a unique class of quantum materials that combine magnetism and nontrivial topology. One of the most promising applications of these materials is Majorana fermion creation; Majorana fermions are expected to arise when a superconductor is in contact with the surface of an IMTI. Here we study the adsorption of Pb ultrathin films on top of IMTIs of various stoichiometries. By means of XPS we figure out the formation of the Pb wetting layer coupled to the surface atoms for low coverages and overlayer growth on top upon further deposition...
July 14, 2022: Journal of Physical Chemistry Letters
https://read.qxmd.com/read/35780167/unveiling-the-s-3-2-kitaev-honeycomb-spin-liquids
#52
JOURNAL ARTICLE
Hui-Ke Jin, W M H Natori, F Pollmann, J Knolle
The S=3/2 Kitaev honeycomb model (KHM) is a quantum spin liquid (QSL) state coupled to a static Z2 gauge field. Employing an SO(6) Majorana representation of spin3/2's, we find an exact representation of the conserved plaquette fluxes in terms of static Z2 gauge fields akin to the S=1/2 KHM which enables us to treat the remaining interacting matter fermion sector in a parton mean-field theory. We uncover a ground-state phase diagram consisting of gapped and gapless QSLs. Our parton description is in quantitative agreement with numerical simulations, and is furthermore corroborated by the addition of a [001] single ion anisotropy (SIA) which continuously connects the gapless Dirac QSL of our model with that of the S=1/2 KHM...
July 2, 2022: Nature Communications
https://read.qxmd.com/read/35776485/coherent-and-incoherent-tunneling-into-yu-shiba-rusinov-states-revealed-by-atomic-scale-shot-noise-spectroscopy
#53
JOURNAL ARTICLE
U Thupakula, V Perrin, A Palacio-Morales, L Cario, M Aprili, P Simon, F Massee
The pair breaking potential of individual magnetic impurities in s-wave superconductors generates localized states inside the superconducting gap commonly referred to as Yu-Shiba-Rusinov (YSR) states whose isolated nature makes them promising building blocks for artificial structures that may host Majorana fermions. One of the challenges in this endeavor is to understand their intrinsic lifetime, ℏ/Λ, which is expected to be limited by the inelastic coupling with the continuum thus leading to decoherence...
June 17, 2022: Physical Review Letters
https://read.qxmd.com/read/35657870/quasiparticle-trapping-at-vortices-producing-josephson-supercurrent-enhancement
#54
JOURNAL ARTICLE
Yosuke Sato, Kento Ueda, Yuusuke Takeshige, Hiroshi Kamata, Kan Li, Lars Samuelson, H Q Xu, Sadashige Matsuo, Seigo Tarucha
The Josephson junction of a strong spin-orbit material under a magnetic field is a promising Majorana fermion candidate. Supercurrent enhancement by a magnetic field has been observed in the InAs nanowire Josephson junctions and assigned to a topological transition. In this work we observe a similar phenomenon but discuss the nontopological origin by considering the trapping of quasiparticles by vortices that penetrate the superconductor under a finite magnetic field. This assignment is supported by the observed hysteresis of the switching current when sweeping up and down the magnetic field...
May 20, 2022: Physical Review Letters
https://read.qxmd.com/read/35654883/nonlinear-two-level-dynamics-of-quantum-time-crystals
#55
JOURNAL ARTICLE
S Autti, P J Heikkinen, J Nissinen, J T Mäkinen, G E Volovik, V V Zavyalov, V B Eltsov
A time crystal is a macroscopic quantum system in periodic motion in its ground state. In our experiments, two coupled time crystals consisting of spin-wave quasiparticles (magnons) form a macroscopic two-level system. The two levels evolve in time as determined intrinsically by a nonlinear feedback, allowing us to construct spontaneous two-level dynamics. In the course of a level crossing, magnons move from the ground level to the excited level driven by the Landau-Zener effect, combined with Rabi population oscillations...
June 2, 2022: Nature Communications
https://read.qxmd.com/read/35596612/emergent-multifunctional-magnetic-proximity-in-van-der-waals-layered-heterostructures
#56
REVIEW
Eun-Mi Choi, Kyung Ik Sim, Kenneth S Burch, Young Hee Lee
Proximity effect, which is the coupling between distinct order parameters across interfaces of heterostructures, has attracted immense interest owing to the customizable multifunctionalities of diverse 3D materials. This facilitates various physical phenomena, such as spin order, charge transfer, spin torque, spin density wave, spin current, skyrmions, and Majorana fermions. These exotic physics play important roles for future spintronic applications. Nevertheless, several fundamental challenges remain for effective applications: unavoidable disorder and lattice mismatch limits in the growth process, short characteristic length of proximity, magnetic fluctuation in ultrathin films, and relatively weak spin-orbit coupling (SOC)...
May 21, 2022: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://read.qxmd.com/read/35594115/fermion-parity-based-computation-and-its-majorana-zero-mode-implementation
#57
JOURNAL ARTICLE
Campbell K McLauchlan, Benjamin Béri
Majorana zero modes (MZMs) promise a platform for topologically protected fermionic quantum computation. However, creating multiple MZMs and generating (directly or via measurements) the requisite transformations (e.g., braids) pose significant challenges. We introduce fermion-parity-based computation (FPBC): a measurement-based scheme, modeled on Pauli-based computation, that uses efficient classical processing to virtually increase the number of available MZMs and which, given magic state inputs, operates without transformations...
May 6, 2022: Physical Review Letters
https://read.qxmd.com/read/35468909/role-of-majorana-fermions-in-high-harmonic-generation-from-kitaev-chain
#58
JOURNAL ARTICLE
Adhip Pattanayak, Sumiran Pujari, Gopal Dixit
The observation of Majorana fermions as collective excitations in condensed-matter systems is an ongoing quest, and several state-of-the-art experiments have been performed in the last decade. As a potential avenue in this direction, we simulate the high-harmonic spectrum of Kitaev's superconducting chain model that hosts Majorana edge modes in its topological phase. It is well-known that this system exhibits a topological-trivial superconducting phase transition. We demonstrate that high-harmonic spectroscopy is sensitive to the phase transition in presence of open boundary conditions due to the presence or absence of these edge modes...
April 25, 2022: Scientific Reports
https://read.qxmd.com/read/35443753/quantum-spins-and-hybridization-in-artificially-constructed-chains-of-magnetic-adatoms-on-a-superconductor
#59
JOURNAL ARTICLE
Eva Liebhaber, Lisa M Rütten, Gaël Reecht, Jacob F Steiner, Sebastian Rohlf, Kai Rossnagel, Felix von Oppen, Katharina J Franke
Magnetic adatom chains on surfaces constitute fascinating quantum spin systems. Superconducting substrates suppress interactions with bulk electronic excitations but couple the adatom spins to a chain of subgap Yu-Shiba-Rusinov (YSR) quasiparticles. Using a scanning tunneling microscope, we investigate such correlated spin-fermion systems by constructing Fe chains adatom by adatom on superconducting NbSe2 . The adatoms couple entirely via the substrate, retaining their quantum spin nature. In dimers, we observe that the deepest YSR state undergoes a quantum phase transition due to Ruderman-Kittel-Kasuya-Yosida interactions, a distinct signature of quantum spins...
April 20, 2022: Nature Communications
https://read.qxmd.com/read/35388194/search-for-majorana-neutrinos-exploiting-millikelvin-cryogenics-with-cuore
#60
JOURNAL ARTICLE
(no author information available yet)
The possibility that neutrinos may be their own antiparticles, unique among the known fundamental particles, arises from the symmetric theory of fermions proposed by Ettore Majorana in 19371 . Given the profound consequences of such Majorana neutrinos, among which is a potential explanation for the matter-antimatter asymmetry of the universe via leptogenesis2 , the Majorana nature of neutrinos commands intense experimental scrutiny globally; one of the primary experimental probes is neutrinoless double beta (0νββ) decay...
April 2022: Nature
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