Showing 2002 · quant-phShow all

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quant-ph2002★ 7 cited

Two-photon imaging and quantum holography

Gunnar Bjork, Jonas Soderholm, Luis L. Sanchez-Soto

It has been claimed that ``the use of entangled photons in an imaging system can exhibit effects that cannot be mimicked by any other two-photon source, whatever strength of the co…

quant-ph2002★ 39 cited

Effective Hamiltonians in quantum optics: a systematic approach

A. B. Klimov, L. L. Sanchez-Soto, A. Navarro +1

We discuss a general and systematic method for obtaining effective Hamiltonians that describe different nonlinear optical processes. The method exploits the existence of a nonlinea…

quant-ph2002★ 36 cited

Master equations for effective Hamiltonians

A. B. Klimov, J. L. Romero, J. Delgado +1

We reelaborate on a general method for obtaining effective Hamiltonians that describe different nonlinear optical processes. The method exploits the existence of a nonlinear deform…

quant-ph2002★ 2 cited

Natural majorization of the Quantum Fourier Transformation in phase-estimation algorithms

Roman Orus, Jose I. Latorre, Miguel A. Martin-Delgado

We prove that majorization relations hold step by step in the Quantum Fourier Transformation (QFT) for phase-estimation algorithms considered in the canonical decomposition. Our re…

quant-ph2002★ 12 cited

A description of entanglement in terms of quantum phase

Luis L. Sanchez-Soto, Julian Delgado, Andrei B. Klimov +1

We explore the role played by the phase in an accurate description of the entanglement of bipartite systems. We first present an appropriate polar decomposition that leads to a tru…

quant-ph2002★ 17 cited

Quantum Chinos Game: winning strategies through quantum fluctuations

F. Guinea, M. A. Martin-Delgado

We apply several quantization schemes to simple versions of the Chinos game. Classically, for two players with one coin each, there is a symmetric stable strategy that allows each…