Entanglement and U(D)-spin squeezing in symmetric multi-quDit systems and applications to quantum phase transitions in Lipkin–Meshkov–Glick D-level atom …
Collective spin operators for symmetric multi-quDit (namely identical D-level atom) systems
generate a U (D) symmetry. We explore generalizations to arbitrary D of SU (2)-spin …
generate a U (D) symmetry. We explore generalizations to arbitrary D of SU (2)-spin …
[HTML][HTML] Excited state quantum phase transitions in the bending spectra of molecules
We present an extension of the Hamiltonian of the two dimensional limit of the vibron model
to encompass all possible interactions up to four-body operators. We apply this Hamiltonian …
to encompass all possible interactions up to four-body operators. We apply this Hamiltonian …
Role of mixed permutation symmetry sectors in the thermodynamic limit of critical three-level Lipkin-Meshkov-Glick atom models
We introduce the notion of mixed symmetry quantum phase transition (MSQPT) as
singularities in the transformation of the lowest-energy state properties of a system of …
singularities in the transformation of the lowest-energy state properties of a system of …
Inverse participation ratio and localization in topological insulator phase transitions
Fluctuations of Hamiltonian eigenfunctions, measured by the inverse participation ratio
(IPR), turn out to characterize topological-band insulator transitions occurring in 2D Dirac …
(IPR), turn out to characterize topological-band insulator transitions occurring in 2D Dirac …
Schmidt decomposition of parity adapted coherent states for symmetric multi-quDits
J Guerrero, A Sojo, A Mayorgas… - Journal of Physics A …, 2023 - iopscience.iop.org
In this paper we study the entanglement in symmetric N-quDit systems. In particular we use
generalizations to U (D) of spin U (2) coherent states (CSs) and their projections on definite …
generalizations to U (D) of spin U (2) coherent states (CSs) and their projections on definite …
Identifying the order of a quantum phase transition by means of Wehrl entropy in phase space
We propose a method to identify the order of a quantum phase transition by using area
measures of the ground state in phase space. We illustrate our proposal by analyzing the …
measures of the ground state in phase space. We illustrate our proposal by analyzing the …
Information diagrams in the study of entanglement in symmetric multi-quDit systems and applications to quantum phase transitions in Lipkin–Meshkov–Glick D-level …
J Guerrero, A Mayorgas, M Calixto - Quantum Information Processing, 2022 - Springer
In this paper we pursue the use of information measures (in particular, information diagrams)
for the study of entanglement in symmetric multi-quDit systems. We use generalizations to U …
for the study of entanglement in symmetric multi-quDit systems. We use generalizations to U …
Hilbert space and ground-state structure of bilayer quantum Hall systems at
M Calixto, C Peón-Nieto, E Pérez-Romero - Physical Review B, 2017 - APS
We analyze the Hilbert space and ground state structure of bilayer quantum Hall (BLQH)
systems at fractional filling factors ν= 2/λ (λ odd) and we also study the large SU (4) isospin-λ …
systems at fractional filling factors ν= 2/λ (λ odd) and we also study the large SU (4) isospin-λ …
Analogies between the topological insulator phase of 2D Dirac materials and the superradiant phase of atom‐field systems
A semiclassical phase‐space perspective of band‐and topological‐insulator regimes of 2D
Dirac materials and normal‐and superradiant phases of atom‐field interacting models is …
Dirac materials and normal‐and superradiant phases of atom‐field interacting models is …
Information measures and topological-band insulator transitions in 2D-Dirac materials under external circularly polarized lasers, and static electric and magnetic fields
The graphene family of 2D-Dirac materials shows different topological phases induced by
the application of electric fields and the circularly polarized lasers. In this paper we present …
the application of electric fields and the circularly polarized lasers. In this paper we present …