Dynamical quantum phase transition of a two-component Bose-Einstein condensate in an optical lattice
arXiv:0908.2792 · doi:10.1103/PhysRevA.81.013603
Abstract
We study dynamics of a two-component Bose-Einstein condensate where the two components are coupled via an optical lattice. In particular, we focus on the dynamics as one drives the system through a critical point of a first order phase transition characterized by a jump in the internal populations. Solving the time-dependent Gross-Pitaevskii equation, we analyze; breakdown of adiabaticity, impact of non-linear atom-atom scattering, and the role of a harmonic trapping potential. Our findings demonstrate that the phase transition is resilient to both contact interaction between atoms and external trapping confinement.
8 pages, 8 figures
References in corpus (24)
- Many-Body Physics with Ultracold Gases
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
- Direct observation of Anderson localization of matter-waves in a controlled disorder
- Spontaneous symmetry breaking in a quenched ferromagnetic spinor Bose condensate
- Fidelity, dynamic structure factor, and susceptibility in critical phenomena
- Universal adiabatic dynamics across a quantum critical point
- Fidelity susceptibility, scaling, and universality in quantum critical phenomena
- Exact results for quench dynamics and defect production in a two-dimensional model
- Quenching Dynamics of a quantum XY spin-1/2 chain in presence of a transverse field
- Adiabatic quantum dynamics of a random Ising chain across its quantum critical point
- Fidelity susceptibility and long-range correlation in the Kitaev honeycomb model
- Phase diagram for a Bose-Einstein condensate moving in an optical lattice
- Adiabatic quantum dynamics of the Lipkin-Meshkov-Glick model
- Quench dynamics and defect production in the Kitaev and extended Kitaev models
- Pinning of vortices in a Bose-Einstein condensate by an optical lattice
- Adiabatic quenches through an extended quantum critical region
- Spin-1 bosons with coupled ground states in optical lattices
- Integrability, stability, and adiabaticity in nonlinear stimulated Raman adiabatic passage
- Quantum Critical Dynamics of A Qubit Coupled to An Isotropic Lipkin-Meshkov-Glick Bath
- Dynamical properties across a quantum phase transition in the Lipkin-Meshkov-Glick model
- Partial-state fidelity and quantum phase transitions induced by continuous level crossing
- Coupled two-component atomic gas in an optical lattice
- Coupling internal atomic states in a two-component Bose-Einstein condensate via an optical lattice: Extended Mott-superfluid transitions