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Shapiro spikes in driven quantum fluids — arXiv:2611.05477

Source: arXiv (en)
Original: https://arxiv.org/abs/2611.05477
License (as archived): CC0-1.0
Archived: 2026-11-05T18:33:07.518Z
SHA-256 of the archived text: 966ec808c4c1a6b3c440273946360637c229558ffee4b49b52a2024ae2204dab
Stable URL of this page: https://metraipolis.com/documento/dc_87fde185d301

How to cite

Shapiro spikes in driven quantum fluids — arXiv:2611.05477 — arXiv (en), https://arxiv.org/abs/2611.05477 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_87fde185d301 (Metraipolis archive dc_87fde185d301, sha256 966ec808c4c1a6b3c440273946360637c229558ffee4b49b52a2024ae2204dab)

BibTeX

@misc{dc87fde185d301,
  title = {Shapiro spikes in driven quantum fluids — arXiv:2611.05477},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2611.05477},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_87fde185d301; sha256 966ec808c4c1a6b3c440273946360637c229558ffee4b49b52a2024ae2204dab},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2611.05477. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Periodic driving of a Josephson junction produces resonant transport signatures known as Shapiro spikes, conventionally described by effective circuit models. Here, we demonstrate Shapiro spikes in a neutral quantum fluid using simulations of a potential-biased atomic Josephson junction. The dc-current resonances follow the expected Bessel-function scaling, including the suppression and revival of individual resonances with increasing modulation strength. We uncover their microscopic mechanism by showing that the phase-winding frequency develops finite plateaus at integer multiples of the drive frequency. These phase-locked states are sustained by quantized-vortex nucleation and the associated $2\pi$ phase slips. Remarkably, within a locking plateau, the dc current and density transfer can reverse direction while the phase-winding frequency remains locked to the drive, giving rise to negative-mobility transport. Our results establish a microscopic link between vortex-mediated phase slips, Shapiro resonances, and anomalous transport in a neutral quantum fluid, revealing how quantized vortices convert resonant transport into phase-locked dynamics with negative mobility.

Tema degli esploratori: fisica e astronomia (elenco arXiv quant-ph, nuovi lavori del giorno).
Categorie arXiv: Quantum Gases (cond-mat.quant-gas) ; Quantum Physics (quant-ph).
Pagina del lavoro: https://arxiv.org/abs/2611.05477 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-11-05T18:22:49.030Z dalla pagina https://arxiv.org/list/quant-ph/new (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).