Multiqubit systems: highly entangled states and entanglement distribution

A Borras, AR Plastino, J Batle, C Zander… - Journal of Physics A …, 2007 - iopscience.iop.org
A comparison is made of various searching procedures, based upon different entanglement
measures or entanglement indicators, for highly entangled multiqubits states. In particular …

Connection between entanglement and the speed of quantum evolution

J Batle, M Casas, A Plastino, AR Plastino - Physical Review A—Atomic …, 2005 - APS
It has been recently pointed out [V. Giovannetti, S. Lloyd, and L. Maccone, Europhys. Lett.
62, 615 (2003)] that, for certain classes of states, quantum entanglement enhances the …

Nonlocality and entanglement in qubit systems

J Batle, M Casas - Journal of Physics A: Mathematical and …, 2011 - iopscience.iop.org
Nonlocality and quantum entanglement constitute two special aspects of the quantum
correlations existing in quantum systems, which are of paramount importance in quantum …

Entanglement and the lower bounds on the speed of quantum evolution

A Borras, M Casas, AR Plastino, A Plastino - Physical Review A—Atomic …, 2006 - APS
The concept of quantum speed limit-time (QSL) was initially introduced as a lower bound to
the time interval that a given initial state ψ I may need so as to evolve into a state orthogonal …

Entanglement and the speed of evolution of multi-partite quantum systems

C Zander, AR Plastino, A Plastino… - Journal of Physics A …, 2007 - iopscience.iop.org
There exists an interesting relationship between entanglement and the time evolution of
composite quantum systems: quantum entanglement enhances the'speed'of evolution of …

Concurrence versus purity: Influence of local channels on Bell states of two qubits

M Ziman, V Bužek - Physical Review A—Atomic, Molecular, and Optical …, 2005 - APS
We analyze how a maximally entangled state of two qubits (eg, the singlet ψ s) is affected by
the action of local channels described by completely positive maps E. We analyze the …

Nonlocality in pure and mixed n-qubit X states

J Batle, CHR Ooi, A Farouk, S Abdalla - Quantum Information Processing, 2016 - Springer
Nonlocality for general multiqubit X states is studied in detail. Pure and mixed states are
analyzed as far as their maximum amount of nonlocality is concerned, and analytic results …

Quantum entanglement, spin-1/2 and the Stern–Gerlach experiment

GB Roston, M Casas, A Plastino… - European journal of …, 2005 - iopscience.iop.org
Quantum entanglement, spin-1/2 and the Stern–Gerlach experiment Page 1 European
Journal of Physics Quantum entanglement, spin-1/2 and the Stern–Gerlach experiment To cite …

Information quantifiers' description of weak field vs. strong field dynamics for a trapped ion in a laser field

ASF Obada, S Abdel-Khalek, A Plastino - Physica A: Statistical Mechanics …, 2011 - Elsevier
By recourse to information-theory tools, we study aspects of the dynamics of the interaction
between a single trapped ion with a laser field. Despite its simplicity the model we use …

Nonextensive quantum H-theorem

R Silva, D Anselmo, JS Alcaniz - Europhysics letters, 2010 - iopscience.iop.org
A proof of the quantum H-theorem taking into account nonextensive effects on the quantum
entropy SQ q is shown. The positiveness of the time variation of SQ q combined with a …