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Prethermalization Revealed by the Relaxation Dynamics of Full Distribution Functions
- Source :
- New Journal of Physics 15, 075011 (2013)
- Publication Year :
- 2012
-
Abstract
- We detail the experimental observation of the non-equilibrium many-body phenomenon prethermalization. We study the dynamics of a rapidly and coherently split one-dimensional Bose gas. An analysis based on the use of full quantum mechanical probability distributions of matter wave interference contrast reveals that the system evolves towards a quasi-steady state. This state, which can be characterized by an effective temperature, is not the final thermal equilibrium state. We compare the evolution of the system to an integrable Tomonaga-Luttinger liquid model and show that the system dephases to a prethermalized state rather than undergoing thermalization towards a final thermal equilibrium state.<br />Comment: Submitted to NJP for the focus issue on Out-of-Equilibrium Dynamics in Strongly Interacting One-Dimensional Systems
Details
- Database :
- arXiv
- Journal :
- New Journal of Physics 15, 075011 (2013)
- Publication Type :
- Report
- Accession number :
- edsarx.1212.4645
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1088/1367-2630/15/7/075011