Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevLett.110.130402
Title: Intrinsic dynamical fluctuation assisted symmetry breaking in adiabatic following
Authors: Zhang, Q. 
Gong, J. 
Oh, C.H. 
Issue Date: 25-Mar-2013
Citation: Zhang, Q., Gong, J., Oh, C.H. (2013-03-25). Intrinsic dynamical fluctuation assisted symmetry breaking in adiabatic following. Physical Review Letters 110 (13) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.110.130402
Abstract: Classical adiabatic invariants in actual adiabatic processes possess intrinsic dynamical fluctuations. The magnitude of such intrinsic fluctuations is often thought to be negligible. This widely believed physical picture is contested here. For adiabatic following of a moving stable fixed-point solution facing a pitchfork bifurcation, we show that intrinsic dynamical fluctuations in an adiabatic process can assist in a deterministic selection between two symmetry-connected fixed-point solutions, with the outcome independent of the duration of the adiabatic process. Using a classical model Hamiltonian also relevant to a two-mode quantum system, we further demonstrate the formation of an adiabatic hysteresis loop in purely Hamiltonian mechanics and the generation of a Berry phase via changing one single-valued parameter only. © 2013 American Physical Society.
Source Title: Physical Review Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/112456
ISSN: 00319007
DOI: 10.1103/PhysRevLett.110.130402
Appears in Collections:Staff Publications

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