56 citations · 193 across the 7 of their papers we have counts for
7 papers
Driven dipole oscillations and the lowest energy excitations of strongly interacting lattice bosons in a harmonic trap
Kai He, Jennifer Brown, Stephan Haas +1
We show that the analysis of the time evolution of the occupation of site and momentum modes of harmonically trapped lattice hard-core bosons, under driven dipole oscillations, all…
Single-particle and many-body analyses of a quasiperiodic integrable system after a quench
Kai He, Lea F. Santos, Tod M. Wright +1
In general, isolated integrable quantum systems have been found to relax to an apparent equilibrium state in which the expectation values of few-body observables are described by t…
Initial state dependence of the quench dynamics in integrable quantum systems. III. Chaotic states
Kai He, Marcos Rigol
We study sudden quantum quenches in which the initial states are selected to be either eigenstates of an integrable Hamiltonian that is nonmappable to a noninteracting one or a non…
Initial state dependence of the quench dynamics in integrable quantum systems. II. Thermal states
Kai He, Marcos Rigol
We study properties of isolated integrable quantum systems after a sudden quench starting from thermal states. We show that, even if the system is initially in thermal equilibrium…
Noise Correlation Scalings: Revisiting the Quantum Phase Transition in Incommensurate Lattices with Hard-Core Bosons
Kai He, Indubala I. Satija, Charles W. Clark +2
Finite size scalings of the momentum distribution and noise correlations are performed to study Mott insulator, Bose glass, and superfluid quantum phases in hard-core bosons (HCBs)…
Scaling of noise correlations in one-dimensional-lattice-hard-core-boson systems
Kai He, Marcos Rigol
Noise correlations are studied for systems of hard-core bosons in one-dimensional lattices. We use an exact numerical approach based on the Bose-Fermi mapping and properties of Sla…