Producing superfluid circulation states using phase imprinting

  title={Producing superfluid circulation states using phase imprinting},
  author={Avinash Kumar and Romain Dubessy and Thomas Badr and Camilla de Rossi and Mathieu de Go{\"e}r de Herve and Laurent Longchambon and H{\'e}l{\`e}ne Perrin},
  journal={Physical Review A},
We propose a method to prepare states of given quantized circulation in annular Bose-Einstein condensates (BEC) confined in a ring trap using the method of phase imprinting without relying on a two-photon angular momentum transfer. The desired phase profile is imprinted on the atomic wave function using a short light pulse with a tailored intensity pattern generated with a Spatial Light Modulator. We demonstrate the realization of 'helicoidal' intensity profiles suitable for this purpose. Due… 

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