TY - JOUR

T1 - Spin relaxation: is there anything new under the Sun?

AU - Rodin, Bogdan A.

AU - Abergel, Daniel

N1 - Copyright: © 2022 Bogdan A. Rodin and Daniel Abergel.

PY - 2022

Y1 - 2022

N2 - Spin relaxation has been at the core of many studies since the early days of nuclear magnetic resonance (NMR) and the underlying theory worked out by its founding fathers. This Bloch-Redfield-Abraham relaxation theory has been recently reinvestigated (Bengs and Levitt, 2020) in the perspective of Lindblad theory of quantum Markovian master equations in order to account for situations where the widely used semi-classical relaxation theory breaks down. In this article, we review the conventional approach of quantum mechanical theory of NMR relaxation and show that, under the usual assumptions, it is equivalent to the Lindblad formulation. We also comment on the debate on semi-classical versus quantum versions of spectral density functions involved in relaxation.

AB - Spin relaxation has been at the core of many studies since the early days of nuclear magnetic resonance (NMR) and the underlying theory worked out by its founding fathers. This Bloch-Redfield-Abraham relaxation theory has been recently reinvestigated (Bengs and Levitt, 2020) in the perspective of Lindblad theory of quantum Markovian master equations in order to account for situations where the widely used semi-classical relaxation theory breaks down. In this article, we review the conventional approach of quantum mechanical theory of NMR relaxation and show that, under the usual assumptions, it is equivalent to the Lindblad formulation. We also comment on the debate on semi-classical versus quantum versions of spectral density functions involved in relaxation.

UR - http://www.scopus.com/inward/record.url?scp=85130919794&partnerID=8YFLogxK

UR - https://www.elibrary.ru/item.asp?id=48586852

U2 - 10.5194/mr-3-27-2022

DO - 10.5194/mr-3-27-2022

M3 - Article

C2 - 37905176

AN - SCOPUS:85130919794

VL - 3

SP - 27

EP - 41

JO - Magnetic Resonance

JF - Magnetic Resonance

SN - 2699-0016

IS - 1

ER -