103 citations · 446 across the 11 of their papers we have counts for
10 papers · 1 filter
Nuclear Physics in the Era of Quantum Computing and Quantum Machine Learning
J. E. García-Ramos, A. Sáiz, J. M. Arias +2
In this paper, the application of quantum simulations and quantum machine learning to solve low-energy nuclear physics problems is explored. The use of quantum computing to deal wi…
Quantum Phase Transitions in periodically quenched systems
Á. Sáiz, J. Khalouf-Rivera, J. M. Arias +2
Quantum phase transitions encompass a variety of phenomena that occur in quantum systems exhibiting several possible symmetries. Traditionally, these transitions are explored by co…
Digital quantum simulation of an extended Agassi model: Using machine learning to disentangle its phase-diagram
Álvaro Sáiz, José-Enrique García-Ramos, José Miguel Arias +2
A digital quantum simulation for the extended Agassi model is proposed using a quantum platform with eight trapped ions. The extended Agassi model is an analytically solvable model…
From thermal to excited-state quantum phase transitions ---the Dicke model
P. Pérez-Fernández, A. Relaño
We study the thermodynamics of the full version of the Dicke model, including all the possible values of the total angular momentum , with both microcanonical and canonical ense…
Critical quasienergy states in driven many-body systems
Victor Manuel Bastidas, Georg Engelhardt, Pedro Perez-Fernandez +2
We discuss singularities in the spectrum of driven many-body spin systems. In contrast to undriven models, the driving allows us to control the geometry of the quasienergy landscap…
Quantum phase transitions of atom-molecule Bose mixtures in a double-well potential
Armando Relaño, Jorge Dukelsky, Pedro Perez-Fernandez +1
The ground state and spectral properties of Bose gases in double-well potentials are studied in two different scenarios: i) an interacting atomic Bose gas, and ii) a mixture of an…
Quantum criticality and dynamical instability in the kicked top
V. M. Bastidas, P. Perez-Fernandez, M. Vogl +1
We investigate precursors of critical behavior in the quasienergy spectrum due to the dynamical instability in the kicked top. Using a semiclassical approach, we analytically obtai…
Quantum quench influenced by an excited-state phase transition
P. Perez-Fernandez, P. Cejnar, J. M. Arias +3
We analyze excited-state quantum phase transitions (ESQPTs) in three schematic (integrable and nonintegrable) models describing a single-mode bosonic field coupled to a collection…
Decoherence due to an excited state quantum phase transition in a two-level boson model
P. Perez-Fernandez, A. Relano, J. M. Arias +2
The decoherence induced on a single qubit by its interaction with the environment is studied. The environment is modelled as a scalar two-level boson system that can go through eit…
Decoherence as a signature of an excited state quantum phase transition
A. Relano, J. M. Arias, J. Dukelsky +2
We analyze the decoherence induced on a single qubit by the interaction with a two-level boson system with critical internal dynamics. We explore how the decoherence process is aff…