Research output: Contribution to journal › Article › peer-review
Representation of population exchange at level anti-crossings. / Rodin, Bogdan A.; Ivanov, Konstantin L.
In: Magnetic Resonance, Vol. 1, No. 2, 2020, p. 347-365.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Representation of population exchange at level anti-crossings
AU - Rodin, Bogdan A.
AU - Ivanov, Konstantin L.
N1 - Funding Information: Financial support. This research has been supported by the Russian Foundation for Basic Research (grant no. 20-53-15004) and the Ministry of Science and Education of the Russian Federation. Publisher Copyright: © Author(s) 2020
PY - 2020
Y1 - 2020
N2 - A theoretical framework is proposed to describe the spin dynamics driven by coherent spin mixing at level anti-crossings (LACs). We briefly introduce the LAC concept and propose to describe the spin dynamics using a vector of populations of the diabatic eigenstates. In this description, each LAC gives rise to a pairwise redistribution of eigenstate populations, allowing one to construct the total evolution operator of the spin system. Additionally, we take into account that in the course of spin evolution a “rotation” of the eigenstate basis case take place. The approach is illustrated by a number of examples, dealing with magnetic field inversion, cross-polarization, singlet-state nuclear magnetic resonance and parahydrogen-induced polarization.
AB - A theoretical framework is proposed to describe the spin dynamics driven by coherent spin mixing at level anti-crossings (LACs). We briefly introduce the LAC concept and propose to describe the spin dynamics using a vector of populations of the diabatic eigenstates. In this description, each LAC gives rise to a pairwise redistribution of eigenstate populations, allowing one to construct the total evolution operator of the spin system. Additionally, we take into account that in the course of spin evolution a “rotation” of the eigenstate basis case take place. The approach is illustrated by a number of examples, dealing with magnetic field inversion, cross-polarization, singlet-state nuclear magnetic resonance and parahydrogen-induced polarization.
UR - http://www.scopus.com/inward/record.url?scp=85124640074&partnerID=8YFLogxK
UR - https://www.elibrary.ru/item.asp?id=48636574
U2 - 10.5194/mr-1-347-2020
DO - 10.5194/mr-1-347-2020
M3 - Article
AN - SCOPUS:85124640074
VL - 1
SP - 347
EP - 365
JO - Magnetic Resonance
JF - Magnetic Resonance
SN - 2699-0016
IS - 2
ER -
ID: 36202124