Quantum quenches in the sinh-Gordon model: steady state and one point correlation functions

Abstract

We consider quantum quenches to the sinh-Gordon integrable quantum field theory from a particular class of initial states. Our analysis includes the case of mass and interaction quenches starting from a non-interacting theory. By means of the recently developed quench action method, we fully characterize the stationary state reached at long times after the quench in terms of the corresponding rapidity distribution. We also provide exact results for the expectation values of arbitrary vertex operators in the post-quench stationary state by proposing a formula based on the analogy with the standard thermodynamic Bethe ansatz. Finally, we comment on the behavior of the post-quench stationary state under the mapping between the sinh-Gordon field theory and the one-dimensional Lieb-Liniger model.

21 pages, 4 figures; v2: minor revision

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• Quantum quenches in 1+1 dimensional conformal field theories
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• The Quench Action
• Exact local correlations and full counting statistics for arbitrary states of the one-dimensional interacting Bose gas
• Determination of the Nonequilibrium Steady State Emerging from a Defect
• Entanglement and quantum transport in integrable systems
• Quench action and Renyi entropies in integrable systems
• Exact steady states for quantum quenches in integrable Heisenberg spin chains
• Exact large-scale correlations in integrable systems out of equilibrium
• Thermalization and light cones in a model with weak integrability breaking
• Generalized hydrodynamics of classical integrable field theory: the sinh-Gordon model
• Hamiltonian truncation approach to quenches in the Ising field theory
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• Entanglement spreading in non-equilibrium integrable systems
• Correlations and diagonal entropy after quantum quenches in XXZ chains
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• Nonequilibrium Full Counting Statistics and Symmetry-Resolved Entanglement from Space-Time Duality
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• Exact solution for the quench dynamics of a nested integrable system
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• Solution of the BEC to BCS Quench in One Dimension
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• Quantum quenches in the sinh-Gordon and Lieb-Liniger models
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