Persistent Currents in a Bose-Einstein Condensate

Abstract

This research program explored matter wave optics and rotating Bose-Einstein condensates (BECs). High sensitivity inertial sensors based on matter waves may benefit greatly from the coherence properties of condensates. We explored rotating BECs using Bragg spectroscopy and uncovered a new mechanism for measuring rotation. We realized a conical lens, or "axicon," for matter waves by tailoring the expansion of a BEC using a far-detuned, intense, focused laser beam. We devised a new scheme for generating flexible, configurable optical traps for atoms using a two-axis scanning acousto-optic modulator, and applied this to realize a BEC in a toroidal potential. Finally, we discovered a mechanism for pumping vorticity into a Bose-Einstein condensate using time-varying magnetic fields, and therefore for the realization of quantum correlated states of large angular momentum.

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Document Details

Document Type
Technical Report
Publication Date
Oct 02, 2009
Accession Number
ADA519000

Entities

People

  • Chandra Raman

Organizations

  • Georgia Tech Research Corporation

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Abstracts
  • Acousto-Optic Modulators
  • Angular Momentum
  • Bose Einstein Condensates
  • Bragg Scattering
  • Differential Equations
  • Laser Beams
  • Lasers
  • Magnetic Fields
  • Mathematics
  • Optical Lattices
  • Partial Differential Equations
  • Physics
  • Rotation
  • Simulations
  • Spectroscopy
  • Wave Phenomena

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • Directed Energy
  • Quantum Computing