Light shifts in atomic Bragg diffraction

E. Giese, A. Friedrich, S. Abend, E. M. Rasel, and W. P. Schleich
Phys. Rev. A 94, 063619 – Published 19 December 2016

Abstract

Bragg diffraction of an atomic wave packet in a retroreflective geometry with two counterpropagating optical lattices exhibits a light shift induced phase. We show that the temporal shape of the light pulse determines the behavior of this phase shift: In contrast to Raman diffraction, Bragg diffraction with Gaussian pulses leads to a significant suppression of the intrinsic phase shift due to a scaling with the third power of the inverse Doppler frequency. However, for box-shaped laser pulses, the corresponding shift is twice as large as for Raman diffraction. Our results are based on approximate but analytical expressions as well as a numerical integration of the corresponding Schrödinger equation.

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  • Received 8 June 2016

DOI:https://doi.org/10.1103/PhysRevA.94.063619

©2016 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
Atomic, Molecular & Optical

Authors & Affiliations

E. Giese1,2, A. Friedrich2, S. Abend3, E. M. Rasel3, and W. P. Schleich2,4

  • 1Department of Physics, University of Ottawa, 25 Templeton Street, Ottawa, Ontario, Canada K1N 6N5
  • 2Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQST), Universität Ulm, Albert-Einstein-Allee 11, D-89081 Ulm, Germany
  • 3Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
  • 4Texas A&M University Institute for Advanced Study (TIAS), Institute for Quantum Science and Engineering and Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843-4242, USA

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Issue

Vol. 94, Iss. 6 — December 2016

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