Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Lerma-Hernandez, Sergio"'
A detailed study of thermalization is conducted on experimentally accessible states in a system of bosonic atoms trapped in an open linear chain with disorder. When the disorder parameter is large, the system exhibits regularity and localization. In
Externí odkaz:
http://arxiv.org/abs/2407.04818
Autor:
Villaseñor, David, Pilatowsky-Cameo, Saúl, Chávez-Carlos, Jorge, Bastarrachea-Magnani, Miguel A., Lerma-Hernández, Sergio, Santos, Lea F., Hirsch, Jorge G.
This review article describes major advances associated with the Dicke model, starting in the 1950s when it was introduced to explain the transition from a normal to a superradiant phase. Since then, this spin-boson interacting model has raised signi
Externí odkaz:
http://arxiv.org/abs/2405.20381
Autor:
Bastarrachea-Magnani, Miguel A., Villaseñor, David, Chávez-Carlos, Jorge, Lerma-Hernández, Sergio, Santos, Lea F., Hirsch, Jorge G.
We study the multifractal behavior of coherent states projected in the energy eigenbasis of the spin-boson Dicke Hamiltonian, a paradigmatic model describing the collective interaction between a single bosonic mode and a set of two-level systems. By
Externí odkaz:
http://arxiv.org/abs/2307.03801
Autor:
Villaseñor, David, Pilatowsky-Cameo, Saúl, Bastarrachea-Magnani, Miguel A., Lerma-Hernández, Sergio, Santos, Lea F., Hirsch, Jorge G.
Publikováno v:
Entropy 25, 8 (2023)
We present a detailed analysis of the connection between chaos and the onset of thermalization in the spin-boson Dicke model. This system has a well-defined classical limit with two degrees of freedom, and it presents both regular and chaotic regions
Externí odkaz:
http://arxiv.org/abs/2211.08434
Publikováno v:
Physics Letters A 493 (2024) 129262
Dynamical signatures of quantum chaos are observed in the survival probability of different initial states, in a system of cold atoms trapped in a linear chain with site noise and open boundary conditions. It is shown that chaos is present in the reg
Externí odkaz:
http://arxiv.org/abs/2203.08922
Autor:
Pilatowsky-Cameo, Saúl, Villaseñor, David, Bastarrachea-Magnani, Miguel A., Lerma-Hernández, Sergio, Hirsch, Jorge G.
Publikováno v:
Phys. Rev. E 105, 064209 (2022)
By employing Husimi quasiprobability distributions, we show that a bounded portion of an unbounded phase space induces a finite effective dimension in an infinite dimensional Hilbert space. We compare our general expressions with numerical results fo
Externí odkaz:
http://arxiv.org/abs/2111.09891
Autor:
Pilatowsky-Cameo, Saúl, Villaseñor, David, Bastarrachea-Magnani, Miguel A., Lerma-Hernández, Sergio, Santos, Lea F., Hirsch, Jorge G.
Publikováno v:
Quantum 6, 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:
http://arxiv.org/abs/2107.06894
Publikováno v:
Phys. Rev. B 104, 060503 (2021)
Assisted by general symmetry arguments and a many-body invariant, we introduce a phase of matter that constitutes a topological SO(5) superfluid. Key to this finding is the realization of an exactly solvable model that displays some similarities with
Externí odkaz:
http://arxiv.org/abs/2102.00492
Autor:
Pilatowsky-Cameo, Saúl, Villaseñor, David, Bastarrachea-Magnani, Miguel A., Lerma-Hernández, Sergio, Santos, Lea F., Hirsch, Jorge G.
Publikováno v:
New J. Phys. 23 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:
http://arxiv.org/abs/2009.08523
Autor:
Pilatowsky-Cameo, Saúl, Villaseñor, David, Bastarrachea-Magnani, Miguel A., Lerma-Hernández, Sergio, Santos, Lea F., Hirsch, Jorge G.
Publikováno v:
Nat Commun 12, 852 (2021)
In a classically chaotic system that is ergodic, any trajectory will be arbitrarily close to any point of the available phase space after a long time, filling it uniformly. Using Born's rules to connect quantum states with probabilities, one might th
Externí odkaz:
http://arxiv.org/abs/2009.00626