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19922026
Showing 2005 · quant-phShow all

6 papers · 2 filters

quant-ph2005★ 78 cited

Relativity and Lorentz Invariance of Entanglement Distillability

L. Lamata, M. A. Martin-Delgado, E. Solano

We study entanglement distillability of bipartite mixed spin states under Wigner rotations induced by Lorentz transformations. We define weak and strong criteria for relativistic i…

quant-ph2005★ 95 cited

On the structure of the sets of mutually unbiased bases for N qubits

J. L. Romero, G. Bjork, A. B. Klimov +1

For a system of N qubits, spanning a Hilbert space of dimension d=2^N, it is known that there exists d+1 mutually unbiased bases. Different construction algorithms exist, and it is…

quant-ph2005★ 12 cited

Quantum phase-space description of light polarization

A. B. Klimov, J. Delgado, L. L. Sanchez-Soto

We present a method to characterize the polarization state of a light field in the continuous-variable regime. Instead of using the abstract formalism of SU(2) quasidistributions,…

quant-ph2005★ 59 cited

Distance-based degrees of polarization for a quantum field

A. B. Klimov, L. L. Sanchez-Soto, E. C. Yustas +2

It is well established that unpolarized light is invariant with respect to any SU(2) polarization transformation. This requirement fully characterizes the set of density matrices r…

quant-ph2005★ 30 cited

Recursive proof of the Bell-Kochen-Specker theorem in any dimension

Adan Cabello, Jose M. Estebaranz, Guillermo Garcia-Alcaine

We present a method to obtain sets of vectors proving the Bell-Kochen-Specker theorem in dimension from a similar set in dimension (). As an application o…

quant-ph2005★ 40 cited

Entanglement Distillation Protocols and Number Theory

H. Bombin, M. A. Martin-Delgado

We show that the analysis of entanglement distillation protocols for qudits of arbitrary dimension benefits from applying basic concepts from number theory, since the set $\zdn…