title: Two-particle quantum interference in tunnel-coupled optical tweezers.
abstract: The quantum statistics of atoms is typically observed in the behavior of an ensemble via macroscopic observables. However, quantum statistics modifies the behavior of even two particles. Here, we demonstrate near-complete control over all the internal and external degrees of freedom of two laser-cooled (87)Rb atoms trapped in two optical tweezers. This controllability allows us to observe signatures of indistinguishability via two-particle interference. Our work establishes laser-cooled atoms in optical tweezers as a promising route to bottom-up engineering of scalable, low-entropy quantum systems.
authors: JILA, National Institute of Standards and Technology and University of Colorado, Boulder, CO 80309, USA. Department of Physics, University of Colorado, Boulder, CO 80309, USA.
authors: A M
authors: AM
authors: Kaufman
authors: JILA, National Institute of Standards and Technology and University of Colorado, Boulder, CO 80309, USA. Department of Physics, University of Colorado, Boulder, CO 80309, USA.
authors: B J
authors: BJ
authors: Lester
authors: JILA, National Institute of Standards and Technology and University of Colorado, Boulder, CO 80309, USA. Department of Physics, University of Colorado, Boulder, CO 80309, USA.
authors: C M
authors: CM
authors: Reynolds
authors: JILA, National Institute of Standards and Technology and University of Colorado, Boulder, CO 80309, USA. Department of Physics, University of Colorado, Boulder, CO 80309, USA.
authors: M L
authors: ML
authors: Wall
authors: Joint Quantum Institute and the National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
authors: M
authors: M
authors: Foss-Feig
authors: JILA, National Institute of Standards and Technology and University of Colorado, Boulder, CO 80309, USA. Department of Physics, University of Colorado, Boulder, CO 80309, USA.
authors: K R A
authors: KR
authors: Hazzard
authors: JILA, National Institute of Standards and Technology and University of Colorado, Boulder, CO 80309, USA. Department of Physics, University of Colorado, Boulder, CO 80309, USA.
authors: A M
authors: AM
authors: Rey
authors: JILA, National Institute of Standards and Technology and University of Colorado, Boulder, CO 80309, USA. Department of Physics, University of Colorado, Boulder, CO 80309, USA. regal@colorado.edu.
authors: C A
authors: CA
authors: Regal