Nonadiabatic Phase Transition with Broken Chiral Symmetry
Statistical Mechanics
2021-02-23 v2 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Quantum Physics
Abstract
We explore nonadiabatic quantum phase transitions in an Ising spin chain with a linearly time-dependent transverse field and two different spins per unit cell. Such a spin system passes through critical points with gapless excitations, which support nonadiabatic transitions. Nevertheless, we find that the excitations on one of the chain sub-lattices are suppressed in the nearly-adiabatic regime exponentially. Thus, we reveal a coherent mechanism to induce exponentially large density separation for different quasiparticles.
Cite
@article{arxiv.2012.07672,
title = {Nonadiabatic Phase Transition with Broken Chiral Symmetry},
author = {Bin Yan and Vladimir Y. Chernyak and Wojciech H. Zurek and Nikolai A. Sinitsyn},
journal= {arXiv preprint arXiv:2012.07672},
year = {2021}
}
Comments
v2: published version. 5+5 pages, 3+1 figures