|
| related topics |
| {entanglement, phys, rev} |
| {let, theorem, proof} |
| {equation, function, exp} |
| {state, states, entangled} |
| {states, state, optimal} |
| {state, algorithm, problem} |
| {operator, operators, space} |
| {group, space, representation} |
| {state, states, coherent} |
| {information, entropy, channel} |
|
An asymptotical separability criterion for bipartite density operators
Roman R. Zapatrin
abstract: For a given density matrix $\rho$ of a bipartite quantum system an
asymptotical separability criterion is suggested. Using the continuous ensemble
method, a sequence of separable density matrices is built which converges to
$\rho$ if and only if $\rho$ is separable. The convergence speed is evaluated
and for any given tolerance parameter $\kappa$ an iterative procedure is
suggested which decides in finite number of steps if there exists a separable
density matrix $\rho_\kappa$ which differs from the matrix $\rho$ by at most
$\kappa$.
- oai_identifier:
- oai:arXiv.org:quant-ph/0504169
- categories:
- quant-ph
- comments:
- 12 pages, LaTeX
- arxiv_id:
- quant-ph/0504169
- created:
- 2005-04-22
Full article ▸
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