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arXiv · 1310.5937

Non-hermitian approach to decaying ultracold bosonic systems

S. Wimberger·C. A. Parra-Murillo·G. Kordas
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Abstract

A paradigm model of modern atom optics is studied, strongly interacting ultracold bosons in an optical lattice. This many-body system can be artificially opened in a controlled manner by modern experimental techniques. We present results based on a non-hermitian effective Hamiltonian whose quantum spectrum is analyzed. The direct access to the spectrum of the metastable many-body system allows us to easily identify relatively stable quantum states, corresponding to previously predicted solitonic many-body structures.

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S. Wimberger, C. A. Parra-Murillo, G. Kordas. 2013-10-22. Non-hermitian approach to decaying ultracold bosonic systems. https://doi.org/10.1088/1742-6596/442/1/012029

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