Zobrazeno 1 - 10
of 137
pro vyhledávání: '"Lea F Santos"'
Autor:
Saúl Pilatowsky-Cameo, David Villaseñor, Miguel A Bastarrachea-Magnani, Sergio Lerma-Hernández, Lea F Santos, Jorge G Hirsch
Publikováno v:
New Journal of Physics, Vol 23, Iss 3, p 033045 (2021)
As the name indicates, a periodic orbit is a solution for a dynamical system that repeats itself in time. In the regular regime, periodic orbits are stable, while in the chaotic regime, they become unstable. The presence of unstable periodic orbits i
Externí odkaz:
https://doaj.org/article/9e7102ad604a481bbac28cd07974a42e
Publikováno v:
New Journal of Physics, Vol 20, Iss 11, p 113039 (2018)
We study the complex quantum dynamics of a system of many interacting atoms in an elongated anharmonic trap. The system is initially in a Bose–Einstein condensed state, well described by Thomas–Fermi profile in the elongated direction and the gro
Externí odkaz:
https://doaj.org/article/dc3d3c3e0d364614b5f61ff910aa2fef
Publikováno v:
New Journal of Physics, Vol 16, Iss 6, p 063010 (2014)
We study numerically and analytically isolated interacting quantum systems that are taken out of equilibrium instantaneously (quenched). The probability of finding the initial state in time, the so-called fidelity, decays fastest for systems describe
Externí odkaz:
https://doaj.org/article/44ea8ab7ffb0481c8a08d564c641b6dd
Autor:
Lea F Santos, M I Dykman
Publikováno v:
New Journal of Physics, Vol 14, Iss 9, p 095019 (2012)
We study the dynamics of two types of pairs of excitations which are bound despite their strong repulsive interaction. One corresponds to doubly occupied sites in one-dimensional Bose–Hubbard systems, the so-called doublons. The other is pairs of n
Externí odkaz:
https://doaj.org/article/3031c9e492044f7ba0dad22a58924577
Autor:
Saúl Pilatowsky-Cameo, David Villaseñor, Miguel A. Bastarrachea-Magnani, Sergio Lerma-Hernández, Lea F. Santos, Jorge G. Hirsch
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
It is generally believed that most eigenstates of quantum chaotic models are ergodic. In this work, the authors disprove this by showing that all eigenstates of the Dicke model in the chaotic regime are scarred, and that ergodicity is an ensemble pro
Externí odkaz:
https://doaj.org/article/edc978172de7476a8aea3beb56ffff1e
Autor:
Saúl Pilatowsky-Cameo, David Villaseñor, Miguel A. Bastarrachea-Magnani, Sergio Lerma-Hernández, Lea F. Santos, Jorge G. Hirsch
Publikováno v:
Quantum, Vol 6, p 644 (2022)
There is no unique way to quantify the degree of delocalization of quantum states in unbounded continuous spaces. In this work, we explore a recently introduced localization measure that quantifies the portion of the classical phase space occupied by
Externí odkaz:
https://doaj.org/article/11327c49adbb4bf898be3dad30dec547
Publikováno v:
Quantum, Vol 5, p 563 (2021)
We study the quantum-classical correspondence of an experimentally accessible system of interacting bosons in a tilted triple-well potential. With the semiclassical analysis, we get a better understanding of the different phases of the quantum system
Externí odkaz:
https://doaj.org/article/7cdb2c10411649c485cdda8c60c9e8d5
Publikováno v:
Quantum, Vol 5, p 486 (2021)
Interacting quantum systems in the chaotic domain are at the core of various ongoing studies of many-body physics, ranging from the scrambling of quantum information to the onset of thermalization. We propose a minimum model for chaos that can be exp
Externí odkaz:
https://doaj.org/article/6197be2a5a6d4f198420f9418a2a5609
Publikováno v:
SciPost Physics, Vol 10, Iss 4, p 088 (2021)
We numerically investigate the minimum number of interacting particles, which is required for the onset of strong chaos in quantum systems on a one-dimensional lattice with short-range and long-range interactions. We consider multiple system sizes
Externí odkaz:
https://doaj.org/article/d816c9b43ff044919186b8cab1c39502
We study the quantum-classical correspondence for systems with interacting spin-particles that are strongly chaotic in the classical limit. This is done in the presence of constants of motion associated with the fixed angular momenta of individual sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9966f8fc714479f2cbcfe9e2fa3e62f2
https://hdl.handle.net/10807/242134
https://hdl.handle.net/10807/242134