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| related topics |
| {state, phys, rev} |
| {qubit, qubits, gate} |
| {time, decoherence, evolution} |
| {cos, sin, state} |
| {state, algorithm, problem} |
| {measurement, state, measurements} |
| {error, code, errors} |
| {let, theorem, proof} |
| {spin, pulse, spins} |
| {entanglement, phys, rev} |
| {wave, scattering, interference} |
| {observables, space, algebra} |
|
Deterministic generation of large cluster states using non-deterministic
collective measurements based on quantum Zeno effect
Xiang-bin Wang, J. Q. You, Franco Nori
abstract: We propose a method to generate large cluster states without using
conditional (e.g., CNOT, C-phase) gates. Indeed, an arbitrarily large cluster
state can be generated and expanded almost deterministically by single-qubit
rotations and a special non-deterministic collective detection. If the rotation
of each step is sufficiently small, the quantum Zeno effect will guarantee that
the state is projected into the intended subspace after each measurement, and
an almost-perfect cluster state can be produced. We also propose a possible
implementation of this approach using superconducting flux qubits.
- oai_identifier:
- oai:arXiv.org:quant-ph/0701007
- categories:
- quant-ph
- comments:
- 4 pages, 1 figure
- doi:
- 10.1103/PhysRevA.77.062339
- arxiv_id:
- quant-ph/0701007
- journal_ref:
- Phys. Rev. A 77, 062339 (2008)
- created:
- 2007-01-02
- updated:
- 2008-08-03
Full article ▸
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