Eur. Phys. J. D 37, 451-456 (2006)
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

Abstract

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.