Phys. Rev. Lett. 91, 213002 (2003) [4 pages]Coherence Properties and Quantum State Transportation in an Optical Conveyor BeltSee Also: Erratum Received 11 April 2003; published 19 November 2003 We have prepared and detected quantum coherences of trapped cesium atoms with long dephasing times. Controlled transport by an “optical conveyor belt” over macroscopic distances preserves the atomic coherence with slight reduction of coherence time. The limiting dephasing effects are experimentally identified, and we present an analytical model of the reversible and irreversible dephasing mechanisms. Our experimental methods are applicable at the single-atom level. Coherent quantum bit operations along with quantum state transport open the route towards a “quantum shift register” of individual neutral atoms. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.213002
DOI:
10.1103/PhysRevLett.91.213002
PACS:
32.80.Lg, 32.80.Pj, 42.50.Vk
See AlsoErratum: S. Kuhr, W. Alt, D. Schrader, I. Dotsenko, Y. Miroshnychenko, W. Rosenfeld, M. Khudaverdyan, V. Gomer, A. Rauschenbeutel, and D. Meschede, Erratum: Coherence Properties and Quantum State Transportation in an Optical Conveyor Belt [Phys. Rev. Lett. 91, 213002 (2003)], Phys. Rev. Lett. 95, 099901 (2005). |
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.