|
| related topics |
| {entanglement, phys, rev} |
| {information, entropy, channel} |
| {states, state, optimal} |
| {algorithm, log, probability} |
| {state, states, entangled} |
| {alice, bob, state} |
|
The Entanglement of Superpositions
Noah Linden, Sandu Popescu, John A. Smolin
abstract: Given a bipartite quantum state (in arbitrary dimension) and a decomposition
of it as a superposition of two others, we find bounds on the entanglement of
the superposition state in terms of the entanglement of the states being
superposed. In the case that the two states being superposed are bi-orthogonal,
the answer is simple, and, for example, the entanglement of the superposition
cannot be more than one e-bit more than the average of the entanglement of the
two states being superposed. However for more general states, the situation is
very different.
- oai_identifier:
- oai:arXiv.org:quant-ph/0507049
- categories:
- quant-ph
- comments:
- 4 pages
- doi:
- 10.1103/PhysRevLett.97.100502
- arxiv_id:
- quant-ph/0507049
- created:
- 2005-07-05
- updated:
- 2005-07-06
Full article ▸
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