Cavity QED and quantum-information processing with 'hot' trapped atoms

Journal Article · Sat Mar 01 04:00:00 EST 2003 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.67.032305· OSTI ID:20633820

Duan, L -M ^[1]; Kuzmich, A; Kimble, H J ^[2]

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1. Institute for Quantum Information, MC 107-81, California Institute of Technology, Pasadena, California 91125-8100 (United States)
2. Norman Bridge Laboratory of Physics 12-33, California Institute of Technology, Pasadena, California 91125 (United States)

We propose a method to implement cavity QED and quantum-information processing in high-Q cavities with a single trapped but nonlocalized atom. The system is beyond the Lamb-Dicke limit due to the atomic thermal motion. Our method is based on adiabatic passages, which make the relevant dynamics insensitive to the randomness of the atom position with an appropriate interaction configuration. The validity of this method is demonstrated from both approximate analytical calculations and exact numerical simulations. We also discuss various applications of this method based on the current experimental technology.

• OSTI ID: 20633820
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 3 Vol. 67; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
BASIC INTERACTIONS
COMPUTERIZED SIMULATION
DATA PROCESSING
INFORMATION THEORY
OPTICS
QUANTUM ELECTRODYNAMICS
QUANTUM MECHANICS
RANDOMNESS
TRAPPING