Entanglement of Atomic Qubits Using an Optical Frequency Comb

Journal Article · Fri Apr 09 00:00:00 EDT 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.104.140501· OSTI ID:21410622

Hayes, D; Matsukevich, D N; Maunz, P; Hucul, D; Quraishi, Q; Olmschenk, S; Campbell, W; Mizrahi, J; Senko, C; Monroe, C ^[1]

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1. Joint Quantum Institute, Department of Physics, University of Maryland and National Institute of Standards and Technology, College Park, Maryland 20742 (United States)

We demonstrate the use of an optical frequency comb to coherently control and entangle atomic qubits. A train of off-resonant ultrafast laser pulses is used to efficiently and coherently transfer population between electronic and vibrational states of trapped atomic ions and implement an entangling quantum logic gate with high fidelity. This technique can be extended to the high field regime where operations can be performed faster than the trap frequency. This general approach can be applied to more complex quantum systems, such as large collections of interacting atoms or molecules.

• OSTI ID: 21410622
• Journal Information: Physical Review Letters, Vol. 104, Issue 14; Other Information: DOI: 10.1103/PhysRevLett.104.140501; (c) 2010 The American Physical Society; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATOMIC IONS
ATOMS
ELECTRONIC STRUCTURE
FREQUENCY SELECTION
LASER RADIATION
MOLECULES
PULSES
QUANTUM ENTANGLEMENT
QUBITS
TRAPPING
VIBRATIONAL STATES
CHARGED PARTICLES
ELECTROMAGNETIC RADIATION
ENERGY LEVELS
EXCITED STATES
INFORMATION
IONS
QUANTUM INFORMATION
RADIATIONS
TUNING