|
| related topics |
| {trap, ion, state} |
| {qubit, qubits, gate} |
| {level, atom, field} |
| {spin, pulse, spins} |
| {state, phys, rev} |
| {time, wave, function} |
| {cos, sin, state} |
| {photon, photons, single} |
| {measurement, state, measurements} |
|
Experimental demonstration of a controlled-NOT wave-packet gate
B. DeMarco, A. Ben-Kish, D. Leibfried, V. Meyer, M. Rowe, B. M. Jelenković, W. M. Itano, J. Britton, C. Langer, T. Rosenband, D. J. Wineland
abstract: We report the experimental demonstration of a controlled-NOT (CNOT) quantum
logic gate between motional and internal state qubits of a single ion where, as
opposed to previously demonstrated gates, the conditional dynamics depends on
the extent of the ion's wave-packet. Advantages of this CNOT gate over one
demonstrated previously are its immunity from Stark shifts due to off-resonant
couplings and the fact that an auxiliary internal level is not required. We
characterize the gate logic through measurements of the post-gate ion state
populations for both logic basis and superposition input states, and we
demonstrate the gate coherence via an interferometric measurement.
- oai_identifier:
- oai:arXiv.org:quant-ph/0208180
- categories:
- quant-ph
- doi:
- 10.1103/PhysRevLett.89.267901
- arxiv_id:
- quant-ph/0208180
- created:
- 2002-08-28
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