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arXiv · 1511.08733

Dynamics of dissipative Bose-Einstein condensation

Stephan Caspar·Florian Hebenstreit·David Mesterházy·Uwe-Jens Wiese
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Abstract

We resolve the real-time dynamics of a purely dissipative $s = 1/2$ quantum spin or, equivalently, hard-core boson model on a hypercubic $d$-dimensional lattice. The considered quantum dissipative process drives the system to a totally symmetric macroscopic superposition in each of the $S^3$ sectors. Different characteristic time scales are identified for the dynamics and we determine their finite-size scaling. We introduce the concept of cumulative entanglement distribution to quantify multiparticle entanglement and show that the considered protocol serves as an efficient method to prepare a macroscopically entangled Bose-Einstein condensate.

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Stephan Caspar, Florian Hebenstreit, David Mesterházy, Uwe-Jens Wiese. 2016-02-02. Dynamics of dissipative Bose-Einstein condensation. https://doi.org/10.1103/physreva.93.021602

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