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arXiv · 1503.03725

Quantum Impurity in a One-dimensional Trapped Bose Gas

A. S. Dehkharghani·A. G. Volosniev·N. T. Zinner
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Abstract

We present a new theoretical framework for describing an impurity in a trapped Bose system in one spatial dimension. The theory handles any external confinement, arbitrary mass ratios, and a weak interaction may be included between the Bose particles. To demonstrate our technique, we calculate the ground state energy and properties of a sample system with eight bosons and find an excellent agreement with numerically exact results. Our theory can thus provide definite predictions for experiments in cold atomic gases.

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A. S. Dehkharghani, A. G. Volosniev, N. T. Zinner. 2015-10-13. Quantum Impurity in a One-dimensional Trapped Bose Gas. https://doi.org/10.1103/physreva.92.031601

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