Search Results - "freericks, J. K"
-
1
Verification of a Many-Ion Simulator of the Dicke Model Through Slow Quenches across a Phase Transition
Published in Physical review letters (27-07-2018)“…We use a self-assembled two-dimensional Coulomb crystal of ∼70 ions in the presence of an external transverse field to engineer a simulator of the Dicke…”
Get full text
Journal Article -
2
Fixed Depth Hamiltonian Simulation via Cartan Decomposition
Published in Physical review letters (12-08-2022)Get full text
Journal Article -
3
A linear response framework for quantum simulation of bosonic and fermionic correlation functions
Published in Nature communications (08-05-2024)“…Response functions are a fundamental aspect of physics; they represent the link between experimental observations and the underlying quantum many-body state…”
Get full text
Journal Article -
4
Emergence and Frustration of Magnetism with Variable-Range Interactions in a Quantum Simulator
Published in Science (American Association for the Advancement of Science) (03-05-2013)“…Frustration, or the competition between interacting components of a network, is often responsible for the emergent complexity of many-body systems. For…”
Get full text
Journal Article -
5
Theoretical description of time-resolved photoemission spectroscopy: application to pump-probe experiments
Published in Physical review letters (03-04-2009)“…The theory for time-resolved, pump-probe, photoemission spectroscopy and other pump-probe experiments is developed. The formal development is completely…”
Get full text
Journal Article -
6
Low-Depth Unitary Coupled Cluster Theory for Quantum Computation
Published in Journal of chemical theory and computation (12-04-2022)“…The unitary coupled cluster (UCC) approximation is one of the more promising wave function ansätzes for electronic structure calculations on quantum computers…”
Get full text
Journal Article -
7
-
8
General Principles for the Nonequilibrium Relaxation of Populations in Quantum Materials
Published in Physical review. X (15-10-2018)“…We examine the problem of how excited populations of electrons relax after they have been excited by a pump. We include three of the most important relaxation…”
Get full text
Journal Article -
9
Energy dissipation from a correlated system driven out of equilibrium
Published in Nature communications (20-12-2016)“…In complex materials various interactions have important roles in determining electronic properties. Angle-resolved photoelectron spectroscopy (ARPES) is used…”
Get full text
Journal Article -
10
Stroboscopic Tests for Thermalization of Electrons in Pump-Probe Experiments
Published in Physical review letters (21-06-2019)“…One of the goals of pump-probe spectroscopies is to determine how electrons relax after they have been driven out of equilibrium. It is challenging to…”
Get full text
Journal Article -
11
Theoretical description of high-order harmonic generation in solids
Published in New journal of physics (01-02-2013)“…We consider several aspects of high-order harmonic generation in solids: the effects of elastic and inelastic scattering, varying pulse characteristics and…”
Get full text
Journal Article -
12
Bang-bang shortcut to adiabaticity in the Dicke model as realized in a Penning trap experiment
Published in New journal of physics (29-05-2018)“…We introduce a bang-bang shortcut to adiabaticity for the Dicke model, which we implement via a two-dimensional array of trapped ions in a Penning trap with a…”
Get full text
Journal Article -
13
Nonequilibrium "melting" of a charge density wave insulator via an ultrafast laser pulse
Published in Physical review letters (02-05-2014)“…We employ an exact solution of the simplest model for pump-probe time-resolved photoemission spectroscopy in charge-density-wave systems to show how, in…”
Get full text
Journal Article -
14
Steady-state nonequilibrium density of States of driven strongly correlated lattice models in infinite dimensions
Published in Physical review letters (07-11-2008)“…An exact formalism for calculating the retarded and advanced Green's functions of strongly correlated lattice models in a uniform electric field is derived…”
Get full text
Journal Article -
15
Mapping of unoccupied states and relevant bosonic modes via the time-dependent momentum distribution
Published in Physical review. B, Condensed matter and materials physics (28-06-2013)“…The unoccupied states of complex materials are difficult to measure, yet they play a key role in determining their properties. We propose a technique that can…”
Get full text
Journal Article -
16
Theoretical description of pump/probe experiments in electron-mediated charge-density-wave insulators
Published in Physica scripta (13-02-2017)“…In this review, we develop the formalism employed to describe charge-density-wave insulators in pump/probe experiments that use ultrashort driving pulses of…”
Get full text
Journal Article -
17
Dynamical mean-field theory for strongly correlated inhomogeneous multilayered nanostructures
Published in Physical review. B, Condensed matter and materials physics (01-11-2004)Get full text
Journal Article -
18
Nonlinear response of Bloch electrons in infinite dimensions
Published in Physical review. B, Condensed matter and materials physics (01-02-2005)Get full text
Journal Article -
19
Creating analogs of thermal distributions from diabatic excitations in ion-trap-based quantum simulation
Published in New journal of physics (18-04-2016)“…One broad goal of quantum simulation is to start a simple quantum system in its ground state and slowly evolve the Hamiltonian to a complex one, maintaining…”
Get full text
Journal Article -
20
Electron-mediated relaxation following ultrafast pumping of strongly correlated materials: model evidence of a correlation-tuned crossover between thermal and nonthermal states
Published in Physical review letters (12-08-2013)“…We examine electron-electron mediated relaxation following ultrafast electric field pump excitation of the fermionic degrees of freedom in the Falicov-Kimball…”
Get full text
Journal Article