Asymmetry Amplification by a Nonadiabatic Passage through a Critical Point
Autor: | Tyagi, Bhavay, Suzuki, Fumika, Chernyak, Vladimir A., Sinitsyn, Nikolai A. |
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Rok vydání: | 2024 |
Předmět: | |
Druh dokumentu: | Working Paper |
Popis: | 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. Comment: 5 pages, 2 figures |
Databáze: | arXiv |
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