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Nonadiabatic Phase Transition with Broken Chiral Symmetry

Bin Yan, Vladimir Y. Chernyak, Wojciech H. Zurek, and Nikolai A. Sinitsyn
Phys. Rev. Lett. 126, 070602 – Published 19 February 2021
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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 sublattices are suppressed in the nearly adiabatic regime exponentially. Thus, we reveal a coherent mechanism to induce exponentially large density separation for different quasiparticles.

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  • Received 2 September 2020
  • Accepted 25 January 2021

DOI:https://doi.org/10.1103/PhysRevLett.126.070602

© 2021 American Physical Society

Physics Subject Headings (PhySH)

Statistical Physics & ThermodynamicsCondensed Matter, Materials & Applied Physics

Authors & Affiliations

Bin Yan1,2, Vladimir Y. Chernyak3, Wojciech H. Zurek2, and Nikolai A. Sinitsyn2

  • 1Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
  • 2Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
  • 3Department of Chemistry and Department of Mathematics, Wayne State University, Detroit, Michigan 48202, USA

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Issue

Vol. 126, Iss. 7 — 19 February 2021

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