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Entanglement universality of two-qubit X-states
(Elsevier B.V., 2014-12-01)
We demonstrate that for every two-qubit state there is a X-counterpart, i.e., a corresponding two-qubit X-state of same spectrum and entanglement, as measured by concurrence, negativity or relative entropy of entanglement. ...
Closure of the entanglement gap at quantum criticality: The case of the quantum spherical model
(American Physical Society, 2020-12)
The study of entanglement spectra is a powerful tool to detect or elucidate universal behavior in quantum many-body systems. We investigate the scaling of the entanglement (or Schmidt) gap δξ , i.e., the lowest-laying gap ...
Anderson localization and momentum-space entanglement
(Iop Publishing Ltd, 2014-07-01)
We consider Anderson localization and the associated metal-insulator transition for non-interacting fermions in D = 1, 2 space dimensions in the presence of spatially correlated on-site random potentials. To assess the ...
Entanglement universality of two-qubit X-states
(Elsevier B.V., 2015)
Entanglement universality of two-qubit X-states
(Elsevier B.V., 2015)
Entanglement Hamiltonians in 1D free lattice models after a global quantum quench
(IOP Publishing, 2019-11)
We study the temporal evolution of the entanglement hamiltonian of an interval after a global quantum quench in free lattice models in one spatial dimension. In a harmonic chain we explore a quench of the frequency parameter. ...
Entanglement degradation of cavity modes due to the dynamical Casimir effect
(American Physical Society, 2020-12)
We study the entanglement dynamics between two cavities when one of them is harmonically shaken in the context of quantum information theory. We find four different regimes depending on the frequency of the motion and the ...