0102004v2

related topics
{alice, bob, state}
{time, systems, information}
{operator, operators, space}
{field, particle, equation}
{phase, path, phys}
{state, phys, rev}
{group, space, representation}
{state, states, entangled}
{energy, state, states}
{photon, photons, single}
{spin, pulse, spins}
{wave, scattering, interference}
{qubit, qubits, gate}
{trap, ion, state}
{cos, sin, state}

The physical meaning of phase and its importance for quantum teleportation

S. J. van Enk

abstract: We argue that the two parties in a quantum teleportation protocol need to share more resources than just an entangled state and a classical communication channel. As the phase between orthogonal states has no physical meaning by itself, a shared standard defining all relevant phases is necessary. We discuss several physical implementations of qubits and the corresponding physical meaning of phase.

oai_identifier:
oai:arXiv.org:quant-ph/0102004
categories:
quant-ph
comments:
3 pages RevTeX, no figures. Comments are still welcome. Submitted to special issue of J. Modern Optics
arxiv_id:
quant-ph/0102004
journal_ref:
J. Mod. Optics 48, 2049 (2001)
created:
2001-02-01
updated:
2001-04-25

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