Comment on "Quenches in quantum many-body systems: One-dimensional Bose-Hubbard model reexamined" [arXiv:0810.3720]
arXiv:0909.4556 · doi:10.1103/PhysRevA.82.037601
Abstract
In a recent paper Roux [Phys. Rev. A 79, 021608(R) (2009), arXiv:0810.3720] argued that thermalization in a Bose-Hubbard system, after a quench, follows from the approximate Boltzmann distribution of the overlap between the initial state and the eigenstates of the final Hamiltonian. We show here that the distribution of the overlaps is in general not related to the canonical (or microcanonical) distribution and, hence, it cannot explain why thermalization occurs in quantum systems.
2 pages, 1 figure, as published
References in corpus (6)
- Thermalization and its mechanism for generic isolated quantum systems
- Quench dynamics and non equilibrium phase diagram of the Bose-Hubbard model
- Breakdown of thermalization in finite one-dimensional systems
- Quantum quenches and thermalization in one-dimensional fermionic systems
- Quantum chaos and thermalization in gapped systems
- Quenches in quantum many-body systems: One-dimensional Bose-Hubbard model reexamined
Cited by in corpus (8)
- Relaxation and thermalization in the one-dimensional Bose-Hubbard model: A case study for the interaction quantum quench from the atomic limit
- Initial state dependence of the quench dynamics in integrable quantum systems
- Nonequilibrium dynamical mean-field theory for bosonic lattice models
- Initial state dependence of the quench dynamics in integrable quantum systems. III. Chaotic states
- Strong thermalization of the two-component Bose-Hubbard model at finite temperatures
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