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Qubit Coherence Noise Stability Characterization

Chaos, Metastability and Ergodicity in Bose-Hubbard Superfluid Circuits

arXiv

Authors: Geva Arwas, Doron Cohen

Year

2017

Paper ID

2604

Status

Preprint

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~2 min

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Abstract

The hallmark of superfluidity is the appearance of metastable flow-states that carry a persistent circulating current. Considering Bose-Hubbard superfluid rings, we clarify the role of "quantum chaos" in this context. We show that the standard Landau and Bogoliubov superfluidity criteria fail for such low-dimensional circuits. We also discuss the feasibility for a coherent operation of a SQUID-like setup. Finally, we address the manifestation of the strong many-body dynamical localization effect.

Why This Paper Matters

This paper contributes to the Qubit Coherence, Noise & Stability Characterization research area in the Quantum Articles archive.
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The hallmark of superfluidity is the appearance of metastable flow-states that carry a persistent circulating current.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1712.07909 [2] arXiv https://arxiv.org/abs/1712.07909 [3] Publisher https://arxiv.org/abs/1712.07909

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