|
related topics |
{state, phys, rev} |
{key, protocol, security} |
{entanglement, phys, rev} |
{state, states, entangled} |
{alice, bob, state} |
{state, algorithm, problem} |
{qubit, qubits, gate} |
{energy, state, states} |
{time, decoherence, evolution} |
|
Optimization of security costs in nested purification protocol
Radim Filip
abstract: We analyse security costs in one segment of nested purification protocol in a
large quantum cryptography network, employing the quantum switchers and
repeaters. We demonstrate that exponential or even super-exponential grow of
entanglement resources occurs in dependence on number of the network switchers.
For this reason, an optimization in the nested strategy is suggested,
preventing a stronger than the exponential grow of entanglement resources.
- oai_identifier:
- oai:arXiv.org:quant-ph/0202171
- categories:
- quant-ph
- comments:
- 4 pages and 3 figures
- arxiv_id:
- quant-ph/0202171
- created:
- 2002-02-28
Full article ▸
|
|
related documents |
0408172v2 |
0410074v2 |
0401039v1 |
0605146v1 |
0404010v1 |
0305101v3 |
0604156v1 |
0701007v2 |
0509005v2 |
0204059v1 |
0612160v1 |
0111093v2 |
0303006v1 |
0301131v1 |
0508040v4 |
0611225v2 |
0603275v1 |
0203134v1 |
0306035v1 |
0607043v1 |
0404172v1 |
0206163v1 |
0606086v2 |
0408064v1 |
0509066v1 |
|