0011083v2

related topics
{alice, bob, state}
{entanglement, phys, rev}
{state, phys, rev}
{bell, inequality, local}
{state, states, coherent}
{states, state, optimal}
{cos, sin, state}
{classical, space, random}
{measurement, state, measurements}
{state, states, entangled}

Teleportation: from probability distributions to quantum states

M. Koniorczyk, T. Kiss, J. Janszky

abstract: The role of the off-diagonal density matrix elements of the entangled pair is investigated in quantum teleportation of a qbit. The dependence between them and the off-diagonal elements of the teleported density matrix is shown to be linear. In this way the ideal quantum teleportation is related to an entirely classical communication protocol: the one-time pad cypher. The latter can be regarded as the classical counterpart of Bennett's quantum teleportation scheme. The quantum-to-classical transition is demonstrated on the statistics of a gedankenexperiment.

oai_identifier:
oai:arXiv.org:quant-ph/0011083
categories:
quant-ph
comments:
11 pages, 1 figure, accepted for publication in J. Phys. A (Math. Gen.)
doi:
10.1088/0305-4470/34/35/320
arxiv_id:
quant-ph/0011083
journal_ref:
J. Phys A (Math. Gen.) vol. 34, pp. 6949-6955 (2001)
created:
2000-11-20
updated:
2001-07-03

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