Zobrazeno 1 - 10
of 124
pro vyhledávání: '"Sols, Fernando"'
Autor:
de Nova, Juan Ramón Muñoz, Palacios, Pablo Fernández, Guerrero, Pedro Alcázar, Zapata, Ivar, Sols, Fernando
As a contribution to a memorial volume, we provide a comprehensive discussion of resonant configurations in analogue gravity, focusing on its implementation in atomic condensates and combining review features with original insights and calculations.
Externí odkaz:
http://arxiv.org/abs/2406.10027
We study simultaneous symmetry-breaking in a spontaneous Floquet state, focusing on the specific case of an atomic condensate. We first describe the quantization of the Nambu-Goldstone (NG) modes for a stationary state simultaneously breaking several
Externí odkaz:
http://arxiv.org/abs/2402.10784
We study the spectral statistics of a one-dimensional Bose-Hubbard model subjected to kinetic driving; a form of Floquet engineering where the kinetic energy is periodically driven in time with a zero time-average. As the amplitude of the driving is
Externí odkaz:
http://arxiv.org/abs/2306.09785
Publikováno v:
Phys. Rev. Research 5, 043282 (2023)
The black-hole laser (BHL) effect is the self-amplification of Hawking radiation between a pair of horizons which act as a resonant cavity. In a flowing atomic condensate, the BHL effect arises in a finite supersonic region, where Bogoliubov-Cherenko
Externí odkaz:
http://arxiv.org/abs/2306.05458
Publikováno v:
New J. Phys. 25, 063006 (2023)
We investigate theoretically the superfluidity of a one-dimensional boson system whose hopping energy is periodically modulated with a zero time average, which results in the suppression of first-order single-particle hopping processes. The dynamics
Externí odkaz:
http://arxiv.org/abs/2212.12881
We investigate the behavior of a one-dimensional Bose-Hubbard model whose kinetic energy is made to oscillate with zero time-average. The effective dynamics is governed by an atypical many-body Hamiltonian where only even-order hopping processes are
Externí odkaz:
http://arxiv.org/abs/2005.05181
Publikováno v:
Phys. Rev. Research 2, 013313 (2020)
We explore the roles of electronic band structure and Coulomb interactions in solid-state HHG by studying the optical response of linear atomic chains and carbon nanotubes to intense ultrashort pulses. Specifically, we simulate electron dynamics by s
Externí odkaz:
http://arxiv.org/abs/1910.08500
Akademický článek
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Publikováno v:
Phys. Rev. A 99, 063609 (2019)
We investigate the dimension of the phase space attractor of a quantum chaotic many-body ratchet in the mean-field limit. Specifically, we explore a driven Bose-Einstein condensate in three distinct dynamical regimes - Rabi oscillations, chaos, and s
Externí odkaz:
http://arxiv.org/abs/1810.00260
Publikováno v:
New J. Phys. 20, 073045 (2018)
We study the effect of time-periodically varying the hopping amplitude in a one-dimensional Bose-Hubbard model, such that its time-averaged value is zero. Employing Floquet theory, we derive a static effective Hamiltonian in which nearest-neighbor si
Externí odkaz:
http://arxiv.org/abs/1706.04864