# Nonequilibrium phase transition with gravitational-like interaction in a cloud of cold atoms.

@article{Barr2013NonequilibriumPT, title={Nonequilibrium phase transition with gravitational-like interaction in a cloud of cold atoms.}, author={Julien Barr{\'e} and B. Marcos and David Wilkowski}, journal={Physical review letters}, year={2013}, volume={112 13}, pages={ 133001 } }

We propose to use a cloud of laser-cooled atoms in a quasi-two-dimensional trap to investigate a nonequilibrium collapse phase transition in the presence of a gravitational-like interaction. Using theoretical arguments and numerical simulations, we show that, like in two-dimensional gravity, a transition to a collapsed state occurs below a critical temperature. In addition and as a signature of the nonequilibrium nature of the system, persistent particle currents, dramatically increasing close…

## 6 Citations

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## References

SHOWING 1-10 OF 59 REFERENCES

### Long-range one-dimensional gravitational-like interaction in a neutral atomic cold gas

- Physics
- 2013

A quasiresonant laser induces a long-range attractive force within a cloud of cold atoms. We take advantage of this force to build in the laboratory a system of particles with a one-dimensional…

### Thermodynamics of self-gravitating systems.

- PhysicsPhysical review. E, Statistical, nonlinear, and soft matter physics
- 2002

A high-friction limit is considered in the Smoluchowski-Poisson system and this results in a self-similar collapse leading to a finite time singularity in the microcanonical ensemble and in the canonical ensemble.

### Collective behavior of optically trapped neutral atoms.

- PhysicsPhysical review letters
- 1990

It is shown that a force arising from radiation trapping can explain much of this behavior in clouds of optically trapped neutral atoms, implying a strong long-range repulsive force between the atoms.

### On the equilibrium statistical mechanics of isothermal classical self-gravitating matter

- Physics
- 1989

The canonical ensemble is investigated for classical self-gravitating matter in a finite containerΛ[d]⊂ℝd,d=3 and 2. Starting with modified gravitational interactions (smoothed-out singularity), it…

### Recoil-limited laser cooling of 87Sr atoms near the Fermi temperature.

- PhysicsPhysical review letters
- 2003

A dynamic magneto-optical trap, which relies on the rapid randomization of population in Zeeman substates, has been demonstrated for fermionic strontium atoms on the 1S0-3P1 intercombination…

### Thermodynamics and collapse of self-gravitating Brownian particles in D dimensions.

- PhysicsPhysical review. E, Statistical, nonlinear, and soft matter physics
- 2002

The thermodynamics and the collapse of a self-gravitating gas of Brownian particles in D dimensions, in both canonical and microcanonical ensembles are addressed, and the problem in D=2 is solved, which displays rather rich and peculiar features with, in particular, the formation of a Dirac peak in the density profile.

### Non-equilibrium critical phenomena and phase transitions into absorbing states

- Physics
- 2000

This review addresses recent developments in non-equilibrium statistical physics. Focusing on phase transitions from fluctuating phases into absorbing states, the universality class of directed…

### Non-equilibrium phase transitions in complex plasma

- Physics
- 2010

Complex plasma being the ‘plasma state of soft matter’ is especially suitable for investigations of non-equilibrium phase transitions. Non-equilibrium phase transitions can manifest in dissipative…

### Gravitational instability of finite isothermal spheres

- Physics
- 2002

We investigate the stability of bounded self-gravitating systems in the canonical ensemble by using a thermodynamical approach. Our study extends the earlier work of Padmanabhan ([CITE]) in the…