期刊
PHYSICAL REVIEW A
卷 77, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.77.041604
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资金
- Engineering and Physical Sciences Research Council [EP/D072514/1] Funding Source: researchfish
- EPSRC [EP/D072514/1] Funding Source: UKRI
We consider a longitudinal expansion of a one-dimensional gas of hard-core bosons suddenly released from a trap. We show that the broken translational invariance in the initial state of the system is encoded in correlations between the bosonic occupation numbers in the momentum space. The correlations are protected by the integrability and exhibit no relaxation during the expansion.
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