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8 papers · 2 filters
Robustness of Highly Entangled Multi-Qubit States Under Decoherence
A. Borras, A. P. Majtey, A. R. Plastino +2
We investigate the decay of entanglement, due to decoherence, of multi-qubit systems that are initially prepared in highly (in some cases maximally) entangled states. We assume tha…
Efficient generation of random multipartite entangled states using time optimal unitary operations
A. Borras, A. Majtey, M. Casas
We review the generation of random pure states using a protocol of repeated two qubit gates. We study the dependence of the convergence to states with Haar multipartite entanglemen…
Measuring the Complete Transverse Spatial Mode Spectrum of a Wave Field
Gabriel F. Calvo, Antonio Picón, Roberta Zambrini
We put forward a method that allows the experimental determination of the entire spatial mode spectrum of any arbitrary monochromatic wave field in a plane normal to its propagatio…
Jensen Shannon divergence as a measure of the degree of entanglement
A. P. Majtey, A. Borras, M. Casas +2
The notion of distance in Hilbert space is relevant in many scenarios. In particular, distances between quantum states play a central role in quantum information theory. An appropr…
Some Entanglement Features of Highly Entangled Multiqubit States
A. Borras, M. Casas, A. R. Plastino +1
We explore some basic entanglement features of multiqubit systems that are relevant for the development of algorithms for searching highly entangled states. In particular, we compa…
Multi-Qubit Systems: Highly Entangled States and Entanglement Distribution
A. Borras, A. R. Plastino, J. Batle +3
A comparison is made of various searching procedures, based upon different entanglement measures or entanglement indicators, for highly entangled multi-qubits states. In particular…