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Diffraction-Unlimited Position Measurement of Ultracold Atoms in an Optical Lattice

Yuto Ashida and Masahito Ueda
Phys. Rev. Lett. 115, 095301 – Published 26 August 2015
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Abstract

We consider a method of high-fidelity, spatially resolved position measurement of ultracold atoms in an optical lattice. We show that the atom-number distribution can be nondestructively determined at a spatial resolution beyond the diffraction limit by tracking the progressive evolution of the many-body wave function collapse into a Fock state. We predict that the Pauli exclusion principle accelerates the rate of wave function collapse of fermions in comparison with bosons. A possible application of our principle of surpassing the diffraction limit to other imaging systems is discussed.

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  • Received 27 November 2014

DOI:https://doi.org/10.1103/PhysRevLett.115.095301

© 2015 American Physical Society

Authors & Affiliations

Yuto Ashida1 and Masahito Ueda1,2

  • 1Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
  • 2RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama 351-0198, Japan

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Issue

Vol. 115, Iss. 9 — 28 August 2015

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