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Non-equilibrium universality in the dynamics of dissipative cold atomic gases

Marcuzzi, Matteo; Levi, Emanuele; Li, Weibin; Garrahan, Juan P.; Olmos, Beatriz; Lesanovsky, Igor

Authors

Emanuele Levi emauele.levi@nottingham.ac.uk

WEIBIN LI weibin.li@nottingham.ac.uk
Associate Professor



Abstract

The theory of continuous phase transitions predicts the universal collective properties of a physical system near a critical point, which for instance manifest in characteristic power-law behaviours of physical observables. The well-established concept at or near equilibrium, universality, can also characterize the physics of systems out of equilibrium. The most fundamental instance of a genuine non-equilibrium phase transition is the directed percolation universality class, where a system switches from an absorbing inactive to a fluctuating active phase. Despite being known for several decades it has been challenging to find experimental systems that manifest this transition. Here we show theoretically that signatures of the directed percolation universality class can be observed in an atomic system with long range interactions. Moreover, we demonstrate that even mesoscopic ensembles — which are currently studied experimentally — are sufficient to observe traces of this non-equilibrium phase transition in one, two and three dimensions.

Journal Article Type Article
Publication Date Jul 31, 2015
Journal New Journal of Physics
Electronic ISSN 1367-2630
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 17
Issue July
Article Number 72003
APA6 Citation Marcuzzi, M., Levi, E., Li, W., Garrahan, J. P., Olmos, B., & Lesanovsky, I. (2015). Non-equilibrium universality in the dynamics of dissipative cold atomic gases. New Journal of Physics, 17(July), doi:10.1088/1367-2630/17/7/072003
DOI https://doi.org/10.1088/1367-2630/17/7/072003
Keywords Non-equilibrium phase transitions, Rydberg atoms, Stochastic processes with absorbing states, Directed percolation
Publisher URL http://iopscience.iop.org/1367-2630/17/7/072003/article
Related Public URLs http://iopscience.iop.org/1367-2630
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0





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