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Thermalization of field driven quantum systems
H. Fotso, K. Mikelsons, J. K. freericks
There is much interest in how quantum systems thermalize after a sudden change, because unitary evolution should preclude thermalization. The eigenstate thermalization hypothesis r…
Using an artificial electric field to create the analog of the red spot of Jupiter in light-heavy Fermi-Fermi mixtures of ultracold atoms
H. F. Fotso, J. Vicente, J. K. Freericks
Time-of-flight images are a common tool in ultracold atomic experiments, employed to determine the quasimomentum distribution of the interacting particles. If one introduces a cons…
Simulation of inhomogeneous distributions of ultracold atoms in an optical lattice via a massively parallel implementation of nonequilibrium strong-coupling perturbation theory
A. Dirks, K. Mikelsons, H. R. Krishnamurthy +1
We present a nonequilibrium strong-coupling approach to inhomogeneous systems of ultracold atoms in optical lattices. We demonstrate its application to the Mott-insulating phase of…
Exact solution for high harmonic generation and the response to an ac driving field for a charge density wave insulator
W. S. Shen, T. P. Devereaux, J. K. Freericks
We develop and exactly solve a model for electrons driven by pulsed or continuous ac fields. The theory includes both the photoexcitation process as well as the subsequent accelera…
Beyond Planck-Einstein quanta: amplitude driven quantum excitation
Wen Shen, T. P. Devereaux, J. K. Freericks
Linear-response quantum excitation is proportional to the amplitude of the field, with the energy of the excitation given by the driving frequency. As the amplitude is increased, t…
Effect of defects on the phonons and the effective spin-spin interactions of an ultracold Penning trap quantum simulator
M. McAneny, B. Yoshimura, J. K. Freericks
We generalize the analysis of the normal modes for a rotating ionic Coulomb crystal in a Penning trap to allow for inhomogeneities in the system. Our formal developments are comple…