scholarly journals Many-body effects and quantum fluctuations for discrete time crystals in Bose-Einstein condensates

2021 ◽  
Author(s):  
Jia Wang ◽  
Peter Hannaford ◽  
Bryan J Dalton
Keyword(s):  
Discrete Time ◽  
Quantum Fluctuations ◽  
Many Body ◽  
Many Body Effects ◽  
Bose Einstein ◽  
Time Crystals

Discrete Time Crystals

2020 ◽  
Vol 11 (1) ◽  
pp. 467-499 ◽  
Author(s):  
Dominic V. Else ◽  
Christopher Monroe ◽  
Chetan Nayak ◽  
Norman Y. Yao
Keyword(s):  
Discrete Time ◽  
Quantum Dynamics ◽  
Many Body ◽  
Time Translation ◽  
Translation Symmetry ◽  
Interesting Class ◽  
Many Body Systems ◽  
Definition Of ◽  
Many Body Interactions ◽  
Time Crystals

Experimental advances have allowed for the exploration of nearly isolated quantum many-body systems whose coupling to an external bath is very weak. A particularly interesting class of such systems is those that do not thermalize under their own isolated quantum dynamics. In this review, we highlight the possibility for such systems to exhibit new nonequilibrium phases of matter. In particular, we focus on discrete time crystals, which are many-body phases of matter characterized by a spontaneously broken discrete time-translation symmetry. We give a definition of discrete time crystals from several points of view, emphasizing that they are a nonequilibrium phenomenon that is stabilized by many-body interactions, with no analog in noninteracting systems. We explain the theory behind several proposed models of discrete time crystals, and compare several recent realizations, in different experimental contexts.

scholarly journals Discrete time crystals in Bose-Einstein condensates and the symmetry-breaking edge in a simple two-mode theory

2021 ◽  
Vol 104 (5) ◽  
Author(s):  
Jia Wang ◽  
Krzysztof Sacha ◽  
Peter Hannaford ◽  
Bryan J. Dalton
Keyword(s):  
Symmetry Breaking ◽  
Discrete Time ◽  
Mode Theory ◽  
Bose Einstein ◽  
Time Crystals

scholarly journals Many-body effects in the excitation spectrum of weakly interacting Bose-Einstein condensates in one-dimensional optical lattices

2017 ◽  
Vol 95 (6) ◽  
Author(s):  
Raphael Beinke ◽  
Shachar Klaiman ◽  
Lorenz S. Cederbaum ◽  
Alexej I. Streltsov ◽  
Ofir E. Alon
Keyword(s):  
Excitation Spectrum ◽  
Optical Lattices ◽  
Many Body ◽  
One Dimensional ◽  
Weakly Interacting ◽  
Many Body Effects ◽  
Bose Einstein

scholarly journals Discrete time crystals in many-body quantum chaos

2019 ◽  
Vol 100 (21) ◽  
Author(s):  
Pekik Nurwantoro ◽  
Raditya Weda Bomantara ◽  
Jiangbin Gong
Keyword(s):  
Discrete Time ◽  
Quantum Chaos ◽  
Many Body ◽  
Time Crystals

scholarly journals Many-body effects on second-order phase transitions in spinor Bose-Einstein condensates and breathing dynamics

2020 ◽  
Vol 102 (1) ◽  
Author(s):  
K. M. Mittal ◽  
S. I. Mistakidis ◽  
P. G. Kevrekidis ◽  
P. Schmelcher
Keyword(s):  
Phase Transitions ◽  
Second Order ◽  
Many Body ◽  
Many Body Effects ◽  
Bose Einstein

Many-body effects in the dynamics of Bose-Einstein condensates

2007 ◽  
Author(s):  
Thomas Ernst ◽  
Tobias Paul ◽  
Peter Schlagheck ◽  
Joachim Brand
Keyword(s):  
Many Body ◽  
Many Body Effects ◽  
Bose Einstein
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