Performance of quantum phase gates with cold trapped atoms
Year: 2005
Authors: Negretti A., Calarco T., Cirone M.A., Recati A.
Autors Affiliation: ECT, I-38050 Trento, Italy; INFM, CRS BEC, I-38050 Trento, Italy; Univ Trent, Dipartimento Fis, I-38050 Trento, Italy; Univ Potsdam, Inst Phys, D-14469 Potsdam, Germany; Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria; Univ Ulm, Abt Quantenphys, D-89069 Ulm, Germany.
Abstract: We examine the performance of a quantum phase gate implemented with cold neutral atoms in microtraps, when anharmonic traps are employed and the effects of finite temperature are also taken into account. Both the anharmonicity and the temperature are found to pose limitations to the performance of the quantum gate. We present a quantitative analysis of the problem and show that the phase gate has a high quality performance for the experimental values that are presently or in the near future achievable in the laboratory.
Journal/Review: EUROPEAN PHYSICAL JOURNAL D
Volume: 32 (1) Pages from: 119 to: 128
KeyWords: Entanglement; Computation; Cavity; Gases; IonsDOI: 10.1140/epjd/e2004-00193-0Citations: 9data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-10-20References taken from IsiWeb of Knowledge: (subscribers only)