CNOT gate by adiabatic passage with an optical cavity

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 const...

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Bibliographic Details
Published in:	The European physical journal. D, Atomic, molecular, and optical physics Vol. 37; no. 3; pp. 451 - 456
Main Authors:	SANGOUARD, N, LACOUR, X, GUERIN, S, JAUSLIN, H. R
Format:	Journal Article
Language:	English
Published:	Les Ulis Springer 2006 Bologna Società italiana di fisica Berlin EDP sciences Springer Nature B.V EDP Sciences
Subjects:	Adiabatic flow Atmospheric and Oceanic Physics Atomic and molecular physics Atomic properties and interactions with photons Classical and quantum physics: mechanics and fields Coherent control of atomic interactions with photons Damping Exact sciences and technology Photon interactions with atoms Physics Quantum computation Quantum information Spontaneous emission Logic gates Adiabatic passage Dark state Quantum computing Spontaneous emission Optical resonators
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Summary:	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.
ISSN:	1434-6060 1434-6079
DOI:	10.1140/epjd/e2005-00315-2