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Dynamical Vanishing of the Order Parameter in a Fermionic Condensate
Open accessAbstract
We analyze the dynamics of a condensate of ultracold atomic fermions following an abrupt change of the pairing strength. At long times, the system goes to a nonstationary steady state, which we determine exactly. The superfluid order parameter asymptotes to a constant value. We show that the order parameter vanishes when the pairing strength is decreased below a certain critical value. In this case, the steady state of the system combines properties of normal and superfluid states -- the gap and the condensate fraction vanish, while the superfluid density is nonzero.
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Cited by
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Aoki, H., Tsuji, N., Eckstein, M., Kollar, M., Oka, T., & Werner, P. (2014) · Reviews of Modern Physics · doi:10.1103/revmodphys.86.779 · Cited by 773
Quantum Quench in the Transverse-Field Ising Chain
Calabrese, P., Essler, F. H. L., & Fagotti, M. (2011) · Physical Review Letters · doi:10.1103/physrevlett.106.227203 · Cited by 688
Quench dynamics and relaxation in isolated integrable quantum spin chains
Essler, F. H. L., & Fagotti, M. (2016) · Journal of Statistical Mechanics: Theory and Experiment · doi:10.1088/1742-5468/2016/06/064002 · Cited by 668
Quantum quenches in extended systems
Calabrese, P., & Cardy, J. (2007) · Journal of Statistical Mechanics: Theory and Experiment · doi:10.1088/1742-5468/2007/06/p06008 · Cited by 658
Geometry and non-adiabatic response in quantum and classical systems
Kolodrubetz, M., Sels, D., Mehta, P., & Polkovnikov, A. (2017) · Physics Reports · doi:10.1016/j.physrep.2017.07.001 · Cited by 326
Metadata
- Authors
- Yuzbashyan, E. A., & Dzero, M.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2006-06-16
- Volume
- 96
- Issue
- 23
- Pages
- 230404-230404
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2074836993
- Cited by
- 166
- References
- 0
- FWCI
- 4.51
- Type
- journal article
- Language
- en
- Open access
- green
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