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Free keywords:
PODOLSKY-ROSEN PARADOX; NONDEGENERATE PARAMETRIC AMPLIFICATION;
MIXED-STATE ENTANGLEMENT; COHERENT STATES; ERROR-CORRECTION; SQUEEZED
STATES; BELLS-INEQUALITY; GAUSSIAN STATES; LINEAR OPTICS; NONDEMOLITION
MEASUREMENTSPhysics;
Abstract:
Quantum information is a rapidly advancing area of interdisciplinary research. It may lead to real-world applications for communication and computation unavailable without the exploitation of quantum properties such as nonorthogonality or entanglement. This article reviews the progress in quantum information based on continuous quantum variables, with emphasis on quantum optical implementations in terms of the quadrature amplitudes of the electromagnetic field.
