Martin C Korzeczek, Laurynas Dagys, Christoph Müller, Benedikt Tratzmiller, Alon Salhov, Tim Eichhorn, Jochen Scheuer, Stephan Knecht, Martin B Plenio, Ilai Schwartz
Nuclear spin hyperpolarization techniques, such as dynamic nuclear polarization (DNP) and parahydrogen-induced polarization (PHIP), have revolutionized nuclear magnetic resonance and magnetic resonance imaging. In these methods, a readily available source of high spin order, either electron spins in DNP or singlet states in hydrogen for PHIP, is brought into close proximity with nuclear spin targets, enabling efficient transfer of spin order under external quantum control. Despite vast disparities in energy scales and interaction mechanisms between electron spins in DNP and nuclear singlet states in PHIP, a pseudo-spin formalism allows us to establish an intriguing equivalence...
April 12, 2024: Journal of Magnetic Resonance