Consistency between adiabatic and nonadiabatic geometric phases for nonselfadjoint hamiltonians
Quantum Physics
2022-06-15 v1 Mathematical Physics
math.MP
Abstract
We show that the adiabatic approximation for nonselfadjoint hamiltonians seems to induce two non-equal expressions for the geometric phase. The first one is related to the spectral projector involved in the adiabatic theorem, the other one is the adiabatic limit of the nonadiabatic geometric phase. This apparent inconsistency is resolved by observing that the difference between the two expressions is compensated by a small deviation in the dynamical phases.
Keywords
Cite
@article{arxiv.2206.06748,
title = {Consistency between adiabatic and nonadiabatic geometric phases for nonselfadjoint hamiltonians},
author = {David Viennot and Arnaud Leclerc and Georges Jolicard and John P. Killingbeck},
journal= {arXiv preprint arXiv:2206.06748},
year = {2022}
}
Comments
8 pages, 1 figure