Showing 1 - 12 results of 12 for search '"ultracold atom"', query time: 0.03s Refine Results
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    Reflections on dipolar quantum fluids by Zwerger, Wilhelm

    Published 2024-12-01
    Subjects: “…Ultracold atoms…”
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    The Dynamical Casimir Effect in quasi-one-dimensional Bose condensates: the breathing ring by Tettamanti, Manuele, Parola, Alberto

    Published 2024-11-01
    “…We present a detailed investigation of one of the cleanest examples where it is possible to detect the “analog” Dynamical Casimir Effect in a Bose–Einstein condensate: an ultracold atom gas in toroidal confinement. The analytical solution of the time dependent Gross–Pitaevskii equation allows to follow the time evolution of the phonon spectrum and shows that periodic oscillations of the ring radius do not induce modulations in the density profile but give rise to the mixing of clockwise and anticlockwise modes, leading to the creation of pairs of entangled phonons in a squeezed vacuum state, if the drive frequency equals twice the frequency of the phonon mode. …”
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    Entanglement-Enhanced Atomic Gravimeter by Christophe Cassens, Bernd Meyer-Hoppe, Ernst Rasel, Carsten Klempt

    Published 2025-02-01
    “…Interferometers based on ultracold atoms enable an absolute measurement of inertial forces with unprecedented precision. …”
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    Observation of the non-Hermitian skin effect and Fermi skin on a digital quantum computer by Ruizhe Shen, Tianqi Chen, Bo Yang, Ching Hua Lee

    Published 2025-02-01
    “…Abstract Lately, the non-Hermitian skin effect (NHSE) has been demonstrated in various classical metamaterials and even ultracold atomic arrays. Yet, its interplay with many-body dynamics have never been experimentally investigated. …”
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    Nonlocal order parameter of pair superfluids by Nitya Cuzzuol, Luca Barbiero, Arianna Montorsi

    Published 2025-02-01
    “…In order to enforce our finding, we confirm the generality of our approach also on a two-component Bose-Hubbard Hamiltonian, which experimental realization represents a timely topic in ultracold atomic systems. Our results shed new light on the role of correlated density fluctuations in pair superfluids. …”
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