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13 papers · 2 filters
Rotons and their damping in elongated dipolar Bose-Einstein condensates
S. I. Matveenko, M. S. Bahovadinov, M. A. Baranov +1
We discuss finite temperature damping of rotons in elongated Bose-condensed dipolar gases, which are in the Thomas-Fermi regime in the tightly confined directions. The presence of…
Theoretical Prediction of Non-Hermitian Skin Effect in Ultracold Atom Systems
Sibo Guo, Chenxiao Dong, Fuchun Zhang +2
Non-Hermitian skin effect, which refers to the phenomenon that an extensive number of eigenstates are localized at the boundary, has been widely studied in lattice models and exper…
Engineering Non-Hermitian Skin Effect with Band Topology in Ultracold Gases
Lihong Zhou, Haowei Li, Wei Yi +1
Non-Hermitian skin effect(NHSE) describes a unique non-Hermitian phenomenon that all eigen-modes are localized near the boundary, and has profound impact on a wide range of bulk pr…
Cavity-enhanced optical lattices for scaling neutral atom quantum technologies to higher qubit numbers
A. J. Park, J. Trautmann, N. Šantić +4
We demonstrate a cavity-based solution to scale up experiments with ultracold atoms in optical lattices by an order of magnitude over state-of-the-art free space lattices. Our two-…
Effective scattering and Efimov physics in the presence of two-body dissipation
Lihong Zhou, Xiaoling Cui
Two-body dissipation usually gives rise to a complex interaction. Here, we study the effect of two-body dissipation on few-body physics, including the fundamental two-body effectiv…
Quantum fluctuations on top of a -symmetric Bose-Einstein Condensate
Xiaoling Cui
We investigate the effects of quantum fluctuations in a parity-time() symmetric two-species Bose-Einstein Condensate(BEC). It is found that the -symmetr…