Zobrazeno 1 - 10
of 174
pro vyhledávání: '"Lea F. Santos"'
Autor:
Jorge Chávez-Carlos, Talía L. M. Lezama, Rodrigo G. Cortiñas, Jayameenakshi Venkatraman, Michel H. Devoret, Victor S. Batista, Francisco Pérez-Bernal, Lea F. Santos
Publikováno v:
npj Quantum Information, Vol 9, Iss 1, Pp 1-7 (2023)
Abstract Transmon qubits are the predominant element in circuit-based quantum information processing, such as existing quantum computers, due to their controllability and ease of engineering implementation. But more than qubits, transmons are multile
Externí odkaz:
https://doaj.org/article/332ad448d1db405caa59f8efa776a2d8
Autor:
Ignacio García-Mata, Rodrigo G. Cortiñas, Xu Xiao, Jorge Chávez-Carlos, Victor S. Batista, Lea F. Santos, Diego A. Wisniacki
Publikováno v:
Quantum, Vol 8, p 1298 (2024)
Parametric gates and processes engineered from the perspective of the static effective Hamiltonian of a driven system are central to quantum technology. However, the perturbative expansions used to derive static effective models may not be able to ef
Externí odkaz:
https://doaj.org/article/b44763775fc64bc685c2ddfb3a0d2d55
Publikováno v:
SciPost Physics, Vol 15, Iss 6, p 244 (2023)
We provide bounds on temporal fluctuations around the infinite-time average of out-of-time-ordered and time-ordered correlators of many-body quantum systems without energy gap degeneracies. For physical initial states, our bounds predict the exponent
Externí odkaz:
https://doaj.org/article/1838ce038ca14b14b390c741f0a0716f
Publikováno v:
SciPost Physics, Vol 15, Iss 1, p 022 (2023)
We study the chaotic properties of a large-spin XXZ chain with onsite disorder and a small number of excitations above the fully polarized state. We show that while the classical limit, which is reached for large spins, is chaotic, enlarging the spin
Externí odkaz:
https://doaj.org/article/ff725f455349458981d5e2c1b5bd6668
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
Publikováno v:
Entropy, Vol 25, Iss 2, p 205 (2023)
Survival probability measures the probability that a system taken out of equilibrium has not yet transitioned from its initial state. Inspired by the generalized entropies used to analyze nonergodic states, we introduce a generalized version of the s
Externí odkaz:
https://doaj.org/article/67a47926aebe441ab3db77cf52f92d67
Autor:
David Villaseñor, Saúl Pilatowsky-Cameo, Miguel A. Bastarrachea-Magnani, Sergio Lerma-Hernández, Lea F. Santos, Jorge G. Hirsch
Publikováno v:
Entropy, Vol 25, Iss 1, p 8 (2022)
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:
https://doaj.org/article/b556d3b958ce4a98b3d574e309fdcdaf
Publikováno v:
Physical Review Research, Vol 3, Iss 3, p L032030 (2021)
Finite-size effects have been a major and justifiable source of concern for studies of many-body localization, and several works have been dedicated to the subject. In this Letter, however, we discuss yet another crucial problem that has received muc
Externí odkaz:
https://doaj.org/article/1fb011f4e410499d9ea6f5b3610f1898
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