Quantum critical dynamics in a spinor Hubbard model quantum simulator
arXiv:2011.07116 · doi:10.1038/s42005-021-00562-y
Abstract
Three-dimensional (3D) strongly correlated many-body systems, especially their dynamics across quantum phase transitions, are prohibitively difficult to be numerically simulated. We experimentally demonstrate that such complex many-body dynamics can be efficiently studied in a 3D spinor Bose-Hubbard model quantum simulator, consisting of antiferromagnetic spinor Bose-Einstein condensates confined in cubic optical lattices. We find novel dynamics and scaling effects beyond the scope of existing theories at superfluid-insulator quantum phase transitions and highlight spin populations as a new observable to probe the quantum critical dynamics. Our data indicate that the scaling exponents are independent of the nature of the quantum phase transitions. We also conduct numerical simulations in lower dimensions using time-dependent Gutzwiller approximations, which qualitatively describe our observations.
References in corpus (26)
- Many-Body Physics with Ultracold Gases
- Nonequilibrium dynamics of closed interacting quantum systems
- Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
- Spinor Bose Condensates in Optical Traps
- Bose-Einstein condensation with internal degrees of freedom in alkali atom gases
- Dynamics of a Quantum Phase Transition
- Dynamics of a Quantum Phase Transition and Relaxation to a Steady State
- Evidence for Superfluidity of Ultracold Fermions in an Optical Lattice
- Spin-exchange interactions of spin-one bosons in optical lattices: singlet, nematic and dimerized Phases
- The Kibble-Zurek Problem: Universality and the Scaling Limit
- Emergence of coherence and the dynamics of quantum phase transitions
- Quantum Quench of an Atomic Mott Insulator
- Sweeping from the superfluid to Mott phase in the Bose-Hubbard model
- Quenches in quantum many-body systems: One-dimensional Bose-Hubbard model reexamined
- Dynamics of the superfluid to Mott insulator transition in one dimension
- Sodium Bose-Einstein Condensates in an Optical Lattice
- Adiabatic loading of a Bose-Einstein condensate in a 3D optical lattice
- Dynamics of a quantum phase transition in the 1D Bose-Hubbard model: excitations and correlations induced by a quench
- Magnetic and Superfluid Transitions in the d=1 Spin-1 Boson Hubbard Model
- Dynamics of spin-1 bosons in an optical lattice: spin mixing, quantum phase revival spectroscopy and effective three-body interactions
- Quantum quench and non-equilibrium dynamics in lattice-confined spinor condensates
- Dynamics and correlations at a quantum phase transition beyond Kibble-Zurek
- Dynamics of a quantum phase transition in the Bose-Hubbard model: Kibble-Zurek mechanism and beyond
- First-order superfluid to Mott-insulator phase transitions in spinor condensates
- Static and Dynamic Properties of Interacting Spin-1 Bosons in an Optical Lattice
- Lattice-induced rapid formation of spin singlets in spin-1 spinor condensates