52 citations · 280 across the 13 of their papers we have counts for
12 papers
Generalized gradient expansion for inhomogeneous dynamical mean-field theory: Application to ultracold atoms in a harmonic trap
J. K. Freericks, Shuyang Han, Karlis Mikelsons +1
We develop a generalized gradient expansion of the inhomogeneous dynamical mean-field theory method for determining properties of ultracold atoms in a trap. This approach goes beyo…
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…
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…
Theoretical Description of Coherent Doublon Creation via Lattice Modulation Spectroscopy
A. Dirks, K. Mikelsons, H. R. Krishnamurthy +1
Using a recently developed strong-coupling method, we present a comprehensive theory for doublon production processes in modulation spectroscopy of a three-dimensional system of ul…
Quasi-universal transient behavior of a nonequilibrium Mott insulator driven by an electric field
K. Mikelsons, J. K. Freericks, H. R. Krishnamurthy
We use a self-consistent strong-coupling expansion for the self-energy (perturbation theory in the hopping) to describe the nonequilibrium dynamics of strongly correlated lattice f…
Role of the van Hove Singularity in the Quantum Criticality of the Hubbard Model
K. -S. Chen, S. Pathak, S. -X. Yang +5
A quantum critical point (QCP), separating the non-Fermi liquid region from the Fermi liquid, exists in the phase diagram of the 2D Hubbard model [Vidhyadhiraja et. al, Phys. Rev.…