Andrea Valdés-Hernández

Dr. Andrea Valdés-Hernández

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Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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23 March 2016 in Physical Review A
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AMAna Majtey
Ana Majtey
PBPeter Alexander Bouvrie
Peter Alexander Bouvrie
AVAndrea Valdés-Hernández
Andrea Valdés-Hernández
Angelo PlastinoAngelo Plastino
Angelo Plastino
We study the problem of detecting multipartite entanglement among indistinguishable fermionic particles. A multipartite concurrence for pure states of N identical fermions, each one having a d-dimensional single-particle Hilbert space, is introduced. Such an entanglement measure, in particular, is optimized for maximally entangled states of three identical fermions that play a role analogous to the usual (qubit) Greenberger-Horne-Zeilinger state. In addition, it is shown that the fermionic multipartite concurrence can be expressed as the mean value of an observable, provided two copies of the composite state are available.

20 January 2023 in Journal of Physics A: Mathematical and Theoretical
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FSFrancisco J. Sevilla
Francisco J. Sevilla
AVAndrea Valdés-Hernández
Andrea Valdés-Hernández
We consider a closed quantum system subject to a stochastic resetting process. The generic expression for the resulting density operator is formulated for arbitrary resetting dynamics, fully characterised by the distribution of times between consecutive reset events. We analyse the behaviour of the state in the long-time regime, as well as the evolution of relevant quantities in the study of quantum coherence and closed- versus open-system dynamics. Our general results are complemented with examples involving particular resetting distributions, and special attention is paid to the two-level (qubit) system, in which we elucidate the effects of the renewal process on the speed of evolution toward an orthogonal state, and gain insight into the resetting applied to open systems.

22 December 2010 in Foundations of Physics
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AVAndrea Valdés-Hernández
Andrea Valdés-Hernández
LPL. de la Peña
L. de la Peña
Ana Maria CettoAna Maria Cetto
Ana Maria Cetto

16 September 2009 in Foundations of Physics
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LPL. de la Peña
L. de la Peña
AVAndrea Valdés-Hernández
Andrea Valdés-Hernández
ACA. M. Cetto
A. M. Cetto

1 April 2011 in Physics Letters A
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LPL. de la Peña
L. de la Peña
AVAndrea Valdés-Hernández
Andrea Valdés-Hernández
Ana Maria CettoAna Maria Cetto
Ana Maria Cetto
HFH.M. França
H.M. França

1 November 2012 in Physica Scripta
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LPL de la Peña
L de la Peña
ACA M Cetto
A M Cetto
AVAndrea Valdés-Hernández
Andrea Valdés-Hernández