Entanglement of Formation of an Arbitrary State of Two Rebits

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dc.creatorCaves, Carlton M.
dc.creatorFuchs, Christopher A.
dc.creatorRungta, Pranaw
dc.date2000-09-14
dc.date.accessioned2026-07-07T06:00:49Z
dc.date.available2026-07-07T06:00:49Z
dc.descriptionWe consider entanglement for quantum states defined in vector spaces over the real numbers. Such real entanglement is different from entanglement in standard quantum mechanics over the complex numbers. The differences provide insight into the nature of entanglement in standard quantum theory. Wootters [Phys. Rev. Lett. 80, 2245 (1998)] has given an explicit formula for the entanglement of formation of two qubits in terms of what he calls the concurrence of the joint density operator. We give a contrasting formula for the entanglement of formation of an arbitrary state of two ``rebits,'' a rebit being a system whose Hilbert space is a 2-dimensional real vector space.
dc.descriptionREVTEX, 11 pages
dc.identifierhttps://arxiv.org/abs/quant-ph/0009063
dc.identifierhttp://arxiv.org/abs/quant-ph/0009063
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/89077
dc.subjectQuantum Physics
dc.titleEntanglement of Formation of an Arbitrary State of Two Rebits
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