|
related topics |
{let, theorem, proof} |
{states, state, optimal} |
{alice, bob, state} |
{group, space, representation} |
{information, entropy, channel} |
{operator, operators, space} |
{state, phys, rev} |
{observables, space, algebra} |
{equation, function, exp} |
{state, states, entangled} |
{field, particle, equation} |
|
All Teleportation and Dense Coding Schemes
R. F. Werner
abstract: We establish a one-to-one correspondence between (1) quantum teleportation
schemes, (2) dense coding schemes, (3) orthonormal bases of maximally entangled
vectors, (4) orthonormal bases of unitary operators with respect to the
Hilbert-Schmidt scalar product, and (5) depolarizing operations, whose Kraus
operators can be chosen to be unitary. The teleportation and dense coding
schemes are assumed to be ``tight'' in the sense that all Hilbert spaces
involved have the same finite dimension d, and the classical channel involved
distinguishes d^2 signals. A general construction procedure for orthonormal
bases of unitaries, involving Latin Squares and complex Hadamard Matrices is
also presented.
- oai_identifier:
- oai:arXiv.org:quant-ph/0003070
- categories:
- quant-ph
- comments:
- 21 pages, LaTeX
- doi:
- 10.1088/0305-4470/34/35/332
- arxiv_id:
- quant-ph/0003070
- created:
- 2000-03-17
Full article ▸
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