Macroscopic wavefunction for ensemble of ultracold atoms trapped in optical labyrinth

A. Yu. Okulov

doi:10.1117/12.801910

29 April 2008 Macroscopic wavefunction for ensemble of ultracold atoms trapped in optical labyrinth

A. Yu. Okulov

Proceedings Volume 7023, Quantum Informatics 2007; 70230G (2008) https://doi.org/10.1117/12.801910
Event: Quantum Informatics 2007, 2007, Moscow, Russian Federation

Abstract

We discuss a possibility of a pinning of quantized matter wave vortices by optical vortices in specially arranged optical dipole traps. The vortex-antivortex optical arrays of rectangular symmetry are shown to transfer angular orbital momentum to support "antiferromagnet-like" matter waves. The separable Hamiltonian for matter waves is proposed which allows to factorize of the 3D - wavefunction exactly in a product of 1D - harmonic oscillator's ground state and 2D - vortex-antivortex wavefunction. The wavefunction's phase gradient field associated with the field of classical velocities via Madelung transformation forms labyrinth-like structure. The macroscopic wavefunction of periodically spaced BEC superfluid vortices appears to be less influenced by decoherence.

Citation Download Citation

A. Yu. Okulov "Macroscopic wavefunction for ensemble of ultracold atoms trapped in optical labyrinth", Proc. SPIE 7023, Quantum Informatics 2007, 70230G (29 April 2008); https://doi.org/10.1117/12.801910

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