Quantum quenches to the attractive one-dimensional Bose gas: exact results
We study quantum quenches to the one-dimensional Bose gas with attractive interactions in the case when the initial state is an ideal one-dimensional Bose condensate. We focus on properties of the stationary state reached at late times after the quench. This displays a finite density of multi-par...
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| Format: | Article |
| Language: | English |
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SciPost
2016-09-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.1.1.001 |
| Summary: | We study quantum quenches to the one-dimensional Bose gas with attractive
interactions in the case when the initial state is an ideal one-dimensional
Bose condensate. We focus on properties of the stationary state reached at late
times after the quench. This displays a finite density of multi-particle bound
states, whose rapidity distribution is determined exactly by means of the
quench action method. We discuss the relevance of the multi-particle bound
states for the physical properties of the system, computing in particular the
stationary value of the local pair correlation function $g_2$. |
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| ISSN: | 2542-4653 |