Journal
PHYSICAL REVIEW B
Volume 103, Issue 16, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.103.165121
Keywords
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Funding
- European Research Council (ERC) [743032 DYNAMINT]
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This study focuses on the formation of bound states in one-dimensional interacting Bose gas, with results determined analytically within the framework of generalized hydrodynamics. The findings are applicable to various initial thermal states and generalized Gibbs ensembles.
We consider the one-dimensional interacting Bose gas in the presence of time-dependent and spatially inhomogeneous contact interactions. Within its attractive phase, the gas allows for bound states of an arbitrary number of particles, which are eventually populated if the system is dynamically driven from the repulsive to the attractive regime. Building on the framework of generalized hydrodynamics, we analytically determine the formation of bound states in the limit of adiabatic changes in the interactions. Our results are valid for arbitrary initial thermal states and, more generally, generalized Gibbs ensembles.
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