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Non-relativistic Josephson Junction from Holography
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Non-relativistic Josephson Junction from Holography
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We construct a Josephson junction in non-relativistic case with a Lifshitz geometry as the dual gravity. We investigate the effect of the Lifshitz scaling in comparison with its relativistic counterpart. The standard sinusoidal relation between the current and the phase difference is found for various Lifshitz scalings characterised by the dynamical critical exponent. We also find the exponential decreasing relation between the condensate of the scalar operator within the barrier at zero current and the width of the weak link, as well as the relation between the critical current and the width. Nevertheless, the coherence lengths obtained from two exponential decreasing relations generically have discrepancies for non-relativistic dual.
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Cited by 1 Pith paper
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Kibble-Zurek Mechanism and Current-Phase Relation in a Holographic Josephson Junction
In a holographic superfluid ring quenched through its transition, the weak-link current follows J = Jmax sin(Δφ), with Jmax exponentially sensitive to junction width, depth, and final temperature.
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