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Title: Nondestructive Cooling of an Atomic Quantum Register via State-Insensitive Rydberg Interactions

Journal Article · · Physical Review Letters
ORCiD logo [1];  [2];  [3]; ORCiD logo [3];  [4];  [5]; ORCiD logo [3]
  1. Joint Quantum Institute, College Park, MD (United States); National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States); Univ. of Maryland, College Park, MD (United States); OSTI
  2. Joint Quantum Institute, College Park, MD (United States); National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States); Univ. of Maryland, College Park, MD (United States)
  3. Joint Quantum Institute, College Park, MD (United States); National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States); Univ. of Maryland, College Park, MD (United States); Joint Center for Quantum Information and Computer Science, College Park, MD (United States)
  4. JILA, Boulder, CO (United States); Univ. of Colorado, Boulder, CO (United States); National Inst. of Standards and Technology (NIST), Boulder, CO (United States)
  5. Austrian Academy of Sciences & Center for Quantum Physics, Innsbruck (Austria); University of Innsbruck (Austria); Institute for Quantum Optics and Quantum Information – Vienna (IQOQI-Vienna) (Austria)

Here we propose a protocol for sympathetically cooling neutral atoms without destroying the quantum information stored in their internal states. This is achieved by designing state-insensitive Rydberg interactions between the data-carrying atoms and cold auxiliary atoms. The resulting interactions give rise to an effective phonon coupling, which leads to the transfer of heat from the data atoms to the auxiliary atoms, where the latter can be cooled by conventional methods. This can be used to extend the lifetime of quantum storage based on neutral atoms and can have applications for long quantum computations. The protocol can also be modified to realize state-insensitive interactions between the data and the auxiliary atoms but tunable and nontrivial interactions among the data atoms, allowing one to simultaneously cool and simulate a quantum spin model.

Research Organization:
Duke Univ., Durham, NC (United States); Univ. of Maryland, College Park, MD (United States)
Sponsoring Organization:
ARCS Foundation; National Institute of Standards and Technology (NIST); National Science Foundation (NSF); US Air Force Office of Scientific Research (AFOSR); US Army Research Laboratory (USARL); US Army Research Office (ARO); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Grant/Contract Number:
SC0019040; SC0019449
OSTI ID:
1803523
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 21 Vol. 123; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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