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Geometric analysis of entangled qubit pairs
Published 4 Oct 2011 in quant-ph and cond-mat.str-el | (1110.0656v1)
Abstract: Two entangled electron spins, or qubits, are analyzed in terms of ordinary three-dimensional space geometric properties, as are the angles between their angular momenta. This formulation allows concurrence, a measure of quantum entanglement, to be expressed as expectation values of trigonometric functions of the azimuthal angle between the two angular momenta.
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