|
| related topics |
| {qubit, qubits, gate} |
| {let, theorem, proof} |
| {states, state, optimal} |
| {entanglement, phys, rev} |
| {operator, operators, space} |
| {state, phys, rev} |
| {bell, inequality, local} |
| {state, algorithm, problem} |
|
Conditions for optimal construction of two-qubit non-local gates
Yong-Sheng Zhang, Ming-Yong Ye, Guang-Can Guo
abstract: Optimal implementation of quantum gates is crucial for designing a quantum
computer. The necessary condition for optimal construction of a two-qubit
unitary operation is obtained. It can be proved that the B gate is the unique
gate that can construct a two-qubit universal circuit with only two
applications, i.e. this condition is also sufficient in the case of two
applications of the elementary two-qubit gate. It is also shown that one half
of perfect entanglers can not simulate an arbitrary two-qubit gate with only 3
applications.
- oai_identifier:
- oai:arXiv.org:quant-ph/0411058
- categories:
- quant-ph
- comments:
- 5 pages, 1 figure
- doi:
- 10.1103/PhysRevA.71.062331
- arxiv_id:
- quant-ph/0411058
- journal_ref:
- Phys. Rev. A 71, 062331 (2005)
- created:
- 2004-11-09
Full article ▸
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