A new approach to entangling neutral atoms.

Technical Report · Tue Nov 01 04:00:00 EDT 2016

DOI:https://doi.org/10.2172/1333520· OSTI ID:1333520

Lee, Jongmin ^[1]; Martin, Michael J. ^[1]; Jau, Yuan-Yu ^[1]; Deutsch, Ivan H. ^[1]; Biedermann, Grant W. ^[1]

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1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Our team has developed a new approach to entangling neutral atoms with a Rydberg-dressed interaction. Entangling neutral atoms is an essential key of quantum technologies such as quantum computation, many-body quantum simulation, and high-precision atomic sensors . The demonstrated Rydberg-dressed protocol involves adiabatically imposing a light shift on the ground state by coupling an excited Rydberg state with a tuned laser field. Using this technique, we have demonstrated a strong and tunable dipole - dipole interaction between two individually trapped atoms with energy shifts of order 1 MHz, which has been challenging to achieve in other protocols . During this program, we experimentally demonstrated Bell-state entanglement and the isomorphism to the Jaynes - Cumming model of a Rydberg-dressed two-atom system. Our theoretical calculations of a CPHASE quantum logic gate and arbitrary Dicke state quantum control in this system encourage further work.

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1333520
• Report Number(s): SAND--2016-11861; 649399
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ADIABATIC PROCESSES
ATOMS
CONTROL
COUPLING
DIPOLES
GROUND STATES
LASER RADIATION
QUANTUM COMPUTERS
QUANTUM ENTANGLEMENT
RYDBERG STATES
SPECTRAL SHIFT