Asymmetry Amplificaton by a Nonadiabatic Passage through a Critical Point
ORAL
Abstract
We propose and solve a minimal model of dynamic passage through a quantum second order phase transition in the presence of weak symmetry breaking interactions and no dissipation. The evolution eventually leads to a highly asymmetric state, no matter how weak the symmetry breaking term is. This suggests a potential mechanism for strong asymmetry in the production of particles with almost identical characteristics. The model's integrability also allows us to obtain exact Kibble-Zurek exponents for the scaling of the number of nonadiabatic excitations.
*This work was supported primarily by the U.S. Department of Energy, Office of Science, Office of Advanced Scientific Computing Research, through the Quantum Internet to Accelerate Scientific Discovery Program, and in part by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under Award Number DE-SC0022134. Bhavay Tyagi also acknowledges support from NSF grant CHE-2404788. Fumika Suzuki acknowledges support from the Los Alamos National Laboratory LDRD program under project number 20230049DR and the Center for Nonlinear Studies under project number 20220546CR-NLS.
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Publication: arXiv: 2408.15897
PRL Manuscript ID: LV18743
Presenters
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Bhavay Tyagi
- University of Houston