Physics – Condensed Matter – Quantum Gases
Scientific paper
2010-12-02
Phys. Rev. A 84, 041606(R) (2011)
Physics
Condensed Matter
Quantum Gases
4+ pages, 3 figures
Scientific paper
10.1103/PhysRevA.84.041606
We study the complex dynamics of a one-dimensional Bose gas subjected to a dissipative local defect which induces one-body atom losses. In experiments these atom losses occur, for example, when a focused electron or light beam or a single trapped ion is brought into contact with a quantum gas. We discuss how within such setups one can measure or manipulate densities locally and specify the excitations that are induced by the defect. In certain situations the defect can be used to generate entanglement in a controlled way despite its dissipative nature. The careful examination of the interplay between hole excitations and the collapse of the wave function due to nondetection of loss is crucial for the understanding of the dynamics we observe.
Barmettler Peter
Kollath Corinna
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