Dynamical quantum phase transitions in the one-dimensional extended
Fermi-Hubbard model
- URL: http://arxiv.org/abs/2109.07709v3
- Date: Thu, 31 Mar 2022 13:31:43 GMT
- Title: Dynamical quantum phase transitions in the one-dimensional extended
Fermi-Hubbard model
- Authors: Juan Jos\'e Mendoza-Arenas
- Abstract summary: We study the emergence of dynamical quantum phase transitions (DQPTs) in a half-filled one-dimensional lattice.
We identify several types of sudden interaction quenches which lead to DQPTs.
State-of-the-art cold-atom quantum simulators constitute ideal platforms to implement several reported DQPTs experimentally.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We study the emergence of dynamical quantum phase transitions (DQPTs) in a
half-filled one-dimensional lattice described by the extended Fermi-Hubbard
model, based on tensor network simulations. Considering different initial
states, namely noninteracting, metallic, insulating spin and charge density
waves, we identify several types of sudden interaction quenches which lead to
DQPTs. Furthermore, clear connections to particular properties of observables,
specifically the mean double occupation or charge imbalance, are established in
two main regimes, and scenarios in which such correspondence is degraded and
lost are discussed. Dynamical transitions resulting solely from high-frequency
time-periodic modulation are also found, which are well described by a Floquet
effective Hamiltonian. State-of-the-art cold-atom quantum simulators constitute
ideal platforms to implement several reported DQPTs experimentally.
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