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Note on zero temperature holographic superfluids
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DOI：10.1088/0264-9381/33/12/127001.png)
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摘要
En 中文
In this note, we have addressed various issues on zero temperature holographic superfluids. First, inspired by our numerical evidence for the equality between the superfluid density and particle density, we provide an elegant analytic proof for this equality by a boost trick. Second, using not only the frequency domain analysis but also the time domain analysis from numerical relativity, we identify the hydrodynamic normal modes and calculate out the sound speed, which is shown to increase with the chemical potential and saturate to the value predicted by the conformal field theory in the large chemical potential limit. Third, the generic non-thermalization is demonstrated by the fully nonlinear time evolution from a non-equilibrium state for our zero temperature holographic superfluid. Furthermore, a conserved Noether charge is proposed in support of this behavior.
Keyword:
applied AdS/CFT
holographic superfluids
AdS soliton
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IF:
3.7
论文数:
1.3W
被引数:
3.0W
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PHYSICS LETTERS BOAAI
PHYSICS LETTERS BIF4.5
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