Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2009-08-06
Nat. Phys. 6, 806-810 (2010)
Physics
Condensed Matter
Strongly Correlated Electrons
9 pages, 2 figures
Scientific paper
10.1038/nphys1754
Quantum critical points are characterized by scale invariant correlations and correspondingly long ranged entanglement. As such, they present fascinating examples of quantum states of matter, the study of which has been an important theme in modern physics. Nevertheless very little is known about the fate of quantum criticality under non equilibrium conditions. In this paper we investigate the effect of external noise sources on quantum critical points. It is natural to expect that noise will have a similar effect to finite temperature, destroying the subtle correlations underlying the quantum critical behavior. Surprisingly we find that in many interesting situations the ubiquitous 1/f noise preserves the critical correlations. The emergent states show intriguing interplay of intrinsic quantum critical and external noise driven fluctuations. We demonstrate this general phenomenon with specific examples in solid state and ultracold atomic systems. Moreover our approach shows that genuine quantum phase transitions can exist even under non equilibrium conditions.
Altman Ehud
Dalla Torre Emanuele G.
Demler Eugene
Giamarchi Thierry
No associations
LandOfFree
Quantum critical states and phase transitions in the presence of non equilibrium noise does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Quantum critical states and phase transitions in the presence of non equilibrium noise, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum critical states and phase transitions in the presence of non equilibrium noise will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-706025