Realization of Discrete Quantum Billiard in 2D Optical Lattices

Details Realization of Discrete Quantum Billiard in 2D Optical Lattices Realization of Discrete Quantum Billiard in 2D Optical Lattices

2011-05-24

arxiv.org/abs/1105.4826v1

Phys. Rev. A 84, 041807(R) (2011)

Physics

Condensed Matter

Disordered Systems and Neural Networks

Scientific paper

We propose the method for optical visualization of Bose-Hubbard model with two interacting bosons in the form of two-dimensional (2D) optical lattices consisting of optical waveguides, where the waveguides at the diagonal are characterized by different refractive index than others elsewhere, modeling the boson-boson interaction. We study the light intensity distribution function averaged over direction of propagation for both ordered and disordered cases, exploring sensitivity of the averaged picture with respect to the beam injection position. For our finite systems the resulting patterns reminiscent the ones set in billiards and therefore we introduce a definition of discrete quantum billiard discussing the possible relevance to its well established continuous counterpart.

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