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Geometrical view of quantum entanglement

Published 8 November 2011 Europhysics Letters Association
, , Citation A. Ramšak 2011 EPL 96 40004 DOI 10.1209/0295-5075/96/40004

0295-5075/96/4/40004

Abstract

Although a precise description of microscopic physical problems requires a full quantum-mechanical treatment, physical quantities are generally discussed in terms of classical variables. One exception is quantum entanglement which apparently has no classical counterpart. We demonstrate here how quantum entanglement may be within the de Broglie-Bohm interpretation of quantum mechanics visualized in geometrical terms, giving new insight into this mysterious phenomenon and a language to describe it. On the basis of our analysis of the dynamics of a pair of qubits, quantum entanglement is linked to concurrent motion of angular momenta in the Bohmian space of hidden variables and to the average angle between these momenta.

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10.1209/0295-5075/96/40004