A superheated Bose-condensed gas
A superheated Bose-condensed gas
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过热玻色凝聚气体
DOI:
10.1038/nphys2587
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发表时间:
2013
期刊:
影响因子:
19.6
通讯作者:
Gaunt A
中科院分区:
文献类型:
--
作者:
Gaunt A
Our understanding of various states of matter usually relies on the assumption of thermodynamic equilibrium. However, the transitions between different phases of matter can be strongly affected by non-equilibrium phenomena. Here we demonstrate and explain an example of non-equilibrium stalling of a continuous, second-order phase transition. We create a superheated atomic Bose gas, in which a Bose–Einstein condensate (BEC) persists above the equilibrium critical temperature,,Tc, if its coupling to the surrounding thermal bath is reduced by tuning interatomic interactions. For vanishing interactions the BEC persists in the superheated regime for a minute. However, if strong interactions are suddenly turned on, it rapidly boils away. Our observations can be understood within a two-fluid picture, treating the condensed and thermal components of the gas as separate equilibrium systems with a tunable inter-component coupling. We experimentally reconstruct a non-equilibrium phase diagram of our gas, and theoretically reproduce its main features.
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影响因子:
8.6
作者:
C. Gardiner;P. Zoller;R. Ballagh;M. Davis
通讯作者:
C. Gardiner;P. Zoller;R. Ballagh;M. Davis
影响因子:
8.6
作者:
Robert P. Smith;S. Beattie;Stuart Moulder;R. L. Campbell;Z. Hadzibabic
通讯作者:
Z. Hadzibabic
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
L. Mathey;A. Polkovnikov
通讯作者:
A. Polkovnikov
影响因子:
8.6
作者:
M. Mark;E. Haller;K. Lauber;J. Danzl;Alexander Janisch;H. P. Buchler;A. Daley;H. Nagerl
通讯作者:
H. Nagerl
DOI:
10.1007/978-3-642-37569-9_16
发表时间:
2012
期刊:
arXiv: Quantum Gases
影响因子:
--
作者:
Robert P. Smith;Z. Hadzibabic
通讯作者:
Z. Hadzibabic