Superfluid density of an open dissipative condensate
arXiv:1106.0682 · doi:10.1103/PhysRevLett.107.080402
Abstract
I calculate the superfluid density of a non-equilibrium 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.
4 pages, 3 figures
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Cited by in corpus (31)
- Quantum fluids of light
- Exciton-polariton condensates
- Room-temperature superfluidity in a polariton condensate
- Circuit QED lattices: towards quantum simulation with superconducting circuits
- Artificial Gauge Field for Photons in Coupled Cavity Arrays
- Bose-Einstein Condensation of Long-Lifetime Polaritons in Thermal Equilibrium
- Fractional quantum Hall states of photons in an array of dissipative coupled cavities
- Spontaneous coherence in spatially extended photonic systems: Non-Equilibrium Bose-Einstein condensation
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- Dynamic Stark Effect in Strongly Coupled Microcavity Exciton-Polaritons
- Steady-state phase diagram of a driven QED-cavity array with cross-Kerr nonlinearities
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- Coherently driven microcavity-polaritons and the question of superfluidity
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- Probing the Flat Band of Optically-Trapped Spin-Orbital Coupled Bose Gases Using Bragg Spectroscopy
- Superlinear Increase of Photocurrent due to Stimulated Scattering into a Polariton Condensate
- Probing few-particle Laughlin states of photons via correlation measurements
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- Normal and superfluid fractions of inhomogeneous nonequilibrium quantum fluids
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