Wheeler, Matthew, Salman, Hayder and Borgh, Magnus O. ORCID: https://orcid.org/0000-0003-4243-7051 (2023) Dynamics of a Nonequilibrium Discontinuous Quantum Phase Transition in a Spinor Bose-Einstein Condensate.
Full text not available from this repository. (Request a copy)Abstract
Symmetry-breaking quantum phase transitions lead to the production of topological defects or domain walls in a wide range of physical systems. In second-order transitions, these exhibit universal scaling laws described by the Kibble-Zurek mechanism, but for first-order transitions a similarly universal approach is still lacking. Here we propose a spinor Bose-Einstein condensate as a testbed system where critical scaling behavior in a first-order quantum phase transition can be understood from generic properties. We generalize the Kibble-Zurek mechanism to determine the critical exponents for: (1) the onset of the decay of the metastable state on short times scales, and (2) the number of resulting phase-separated ferromagnetic domains at longer times, as a one-dimensional spin-1 condensate is ramped across a first-order quantum phase transition. The predictions are in excellent agreement with mean-field numerical simulations and provide a paradigm for studying the decay of metastable states in experimentally accessible systems.
Item Type: | Article |
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Faculty \ School: | Faculty of Science > School of Engineering, Mathematics and Physics |
UEA Research Groups: | Faculty of Science > Research Groups > Centre for Photonics and Quantum Science Faculty of Science > Research Groups > Fluids & Structures Faculty of Science > Research Groups > Quantum Matter |
Related URLs: | |
Depositing User: | LivePure Connector |
Date Deposited: | 07 Jan 2025 01:55 |
Last Modified: | 07 Jan 2025 01:55 |
URI: | https://ueaeprints.uea.ac.uk/id/eprint/98101 |
DOI: |
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