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Scheme for Deterministic Loading of Laser-Cooled Molecules into Optical Tweezers. | LitMetric

Scheme for Deterministic Loading of Laser-Cooled Molecules into Optical Tweezers.

Phys Rev Lett

Institute for Molecules and Materials, Radboud University, Nijmegen, The Netherlands.

Published: May 2024

AI Article Synopsis

  • The proposal involves using optical tweezers to load laser-cooled molecules and placing them into storage states that are rotationally excited.
  • This method minimizes collisional loss and employs a dipolar blockade to ensure that only one molecule occupies each tweezers position.
  • By successfully applying this process in three cycles, the researchers achieve an 80% success rate in loading single molecules, which enhances the efficiency and scalability of quantum computers utilizing neutral molecules.

Article Abstract

We propose to repeatedly load laser-cooled molecules into optical tweezers, and transfer them to storage states that are rotationally excited by two additional quanta. Collisional loss of molecules in these storage states is suppressed, and a dipolar blockade prevents the accumulation of more than one molecule. Applying three cycles loads tweezers with single molecules at an 80% success rate, limited by residual collisional loss. This improved loading efficiency reduces the time needed for rearrangement of tweezer arrays, which would otherwise limit the scalability of neutral molecule quantum computers.

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Source
http://dx.doi.org/10.1103/PhysRevLett.132.183401DOI Listing

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