Unambiguous modification of non-orthogonal quantum states (2008)
Torres-Ruiz, F. A., Aguirre, J., Delgado, A., Neves, L., Lima, G., Pádua, S., ...
A probabilistic method for the unambiguous modification of non-orthogonal quantum states is proposed. This is based on conclusive modifications of the inner product between two pure quantum states in...
Narrow entanglement beats (2006)
Roa, L., Pozo-Gonzalez, R., Schaefer, M., Utreras-SM, P.
We study how the entanglement between two atoms can be created or modified even when they do not interact but when each of them interacts dispersively, i.e., weak and far from the resonance with a...
Measurement-driven quantum evolution from a known state (2006)
Roa, L., Olivares-Renteria, G. A., Delgado, A.
We study the problem of driving a known initial quantum state onto a known pure state without using a unitary evolution. This task can be achieved by means of von Neumann measurement processes,...
Quantum state stability against decoherence (2006)
Krugel, A., Roa, L., Saavedra, C.
We study the stability of the coherence of a state of a quantum system under the effect of an interaction with another quantum system at short time. We find an expression for evaluating the order of...
Medical and Care Compunetics 3 (2006)
Bos, L., Roa, L., Yogesan, K., O'Connell, B., Marsh, A., Blobel, B.
Medical and care compunetics 3 (2006)
Bos, Lodewijk, Roa, L., Yogesan, K., O'Connell, B., Marsh, A., Blobel, Bernd
Decoherence assisting a measurement-driven quantum evolution process (2005)
We study the problem of driving an unknown initial mixed quantum state onto a known pure state without using unitary transformations. This can be achieved, in an efficient manner, with the help of...
Measurement driven quantum evolution (2005)
Roa, L., Delgado, A., Klimov, A.
We study the problem of mapping an unknown mixed quantum state onto a known pure state without the use of unitary transformations. This is achieved with the help of sequential measurements of two...
Optimal conclusive teleportation of quantum states (2003)
Roa, L, Delgado, A J, Fuentes-Guridi, I
Quantum teleportation of qudits is revisited. In particular, we analyze the case where the quantum channel corresponds to a non-maximally entangled state and show that the success of the protocol is...
Optimal conclusive teleportation of quantum states (2003)
Roa, L., Delgado, A., Fuentes-Guridi, I.
Quantum teleportation of qudits is revisited. In particular, we analyze the case where the quantum channel corresponds to a non-maximally entangled state and show that the success of the protocol is...
Virtual Center for Renal Support: Definition of a Novel Knowledge-Based Telemedicine System (2003)
Prado, M., Roa, L., Reina-Tosina, J., Palma, A., Milan, J. A.
The Biomedical Engineering Group of the University of Seville (GIB) is developing new strategies to apply the home health care program within End Stage Renal Disease (ESRD) Patients. In this paper we...
We determine the (bound) ground state of a spin 1/2 chargless particle with anomalous magnetic moment in certain Aharonov-Casher configurations. We recast the description of the system in a...
Remote Adaptive Communication System (1998)
This paper presents a new approach to the development of communication tools for handicapped people. The aim is to provide with a set of capabilities which allows them to interact with their...
Errandonea, Daniel, Sánchez-Royo, J. F., Segura, A., Chevy, A., Roa, L.
The effect of pressure on acceptor levels and hole scattering mechanisms in p-GaSe is investigated through Hall effect and resistivity measurements under quasi-hydrostatic conditions up to 4 GPa. The...