Abstract
I calculate the superfluid density of a nonequilibrium steady state condensate of particles with finite lifetime. Despite the absence of a simple Landau critical velocity, a superfluid response survives, but dissipation reduces the superfluid fraction. I also suggest an idea for how the superfluid density of an example of such a system, i.e., microcavity polaritons, might be measured.
| Original language | English |
|---|---|
| Article number | 080402 |
| Number of pages | 5 |
| Journal | Physical Review Letters |
| Volume | 107 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 16 Aug 2011 |
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Dive into the research topics of 'Superfluid density of an open dissipative condensate'. Together they form a unique fingerprint.Projects
- 2 Finished
-
Topological Protection and NonEquilibriu: Topological Protection and NonEquilibrium States in Strongly Correlated Electron Systems
Wahl, P. (PI), Baumberger, F. (CoI), Davis, S. (CoI), Green, A. (CoI), Hooley, C. (CoI), Keeling, J. (CoI) & Mackenzie, A. (CoI)
1/09/11 → 31/08/17
Project: Standard
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Macroscopic quantum coherence: Macroscopic quantum coherence in non-equilibrium and driven quantum systems
Keeling, J. (PI)
1/09/10 → 31/03/14
Project: Fellowship
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