https://doi.org/10.1140/epjd/e2005-00315-2
CNOT gate by adiabatic passage with an optical cavity
1
Fachbereich Physik, Universität Kaiserslautern, Erwin-Schrödinger-Strasse, 67663 Kaiserlsautern, Germany
2
Laboratoire de Physique, Université de Bourgogne, UMR CNRS 5027, B.P. 47870, 21078 Dijon Cedex, France
Corresponding author: a nicolas.sangouard@physik.uni-kl.de
Received:
24
May
2005
Revised:
26
September
2005
Published online:
22
November
2005
We propose a scheme for the construction of a CNOT gate by adiabatic passage in an optical cavity. In opposition to a previously proposed method, the technique is not based on fractional adiabatic passage, which requires the control of the ratio of two pulse amplitudes. Moreover, the technique constitutes a decoherence-free method in the sense that spontaneous emission and cavity damping are avoided since the dynamics follows dark states.
PACS: 03.67.Lx – Quantum computation / 32.80.Qk – Coherent control of atomic interactions with photons
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2005