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quant-ph2024★ 1 cited
Nonperturbative decay of bipartite discrete time crystals
Lennart Fernandes, Joseph Tindall, Dries Sels
We study prethermal time-crystalline order in periodically driven quantum Ising models on disorder-free decorated lattices. Using a tensor network ansatz for the state which reflec…
cond-mat.quant-gas2024
Analog Hawking radiation from a spin-sonic horizon in a two-component Bose-Einstein condensate
Anna Berti, Lennart Fernandes, Salvatore Giulio Butera +3
We theoretically study stimulated and spontaneous Hawking emission from an analog horizon for spin modes in a two-component Bose-Einstein condensate, both with and without a cohere…