Asymmetry Amplification by a Nonadiabatic Passage through a Critical Point

Autor:	Tyagi, Bhavay, Suzuki, Fumika, Chernyak, Vladimir A., Sinitsyn, Nikolai A.
Rok vydání:	2024
Předmět:	Quantum Physics Mathematical Physics Nonlinear Sciences - Exactly Solvable and Integrable Systems
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
Externí odkaz:	http://arxiv.org/abs/2408.15897 Zobrazit plný text záznamu View this record from Arxiv