Open quantum systems with local and collective incoherent processes: Efficient numerical simulations using permutational invariance

N Shammah, S Ahmed, N Lambert, S De Liberato… - Physical Review A, 2018 - APS
The permutational invariance of identical two-level systems allows for an exponential
reduction in the computational resources required to study the Lindblad dynamics of …

Cavity quantum electrodynamics in the nonperturbative regime

D De Bernardis, T Jaako, P Rabl - Physical Review A, 2018 - APS
We study a generic cavity-QED system where a set of (artificial) two-level dipoles is coupled
to the electric field of a single-mode LC resonator. This setup is used to derive a minimal …

Characterizing the dynamical phase diagram of the Dicke model via classical and quantum probes

RJ Lewis-Swan, SR Muleady, D Barberena… - Physical Review …, 2021 - APS
We theoretically study the dynamical phase diagram of the Dicke model in both classical
and quantum limits using large, experimentally relevant system sizes. Our analysis …

Analog quantum simulation of generalized Dicke models in trapped ions

I Aedo, L Lamata - Physical Review A, 2018 - APS
We propose the analog quantum simulation of generalized Dicke models in trapped ions. By
combining bicromatic laser interactions on multiple ions we can generate all regimes of light …

Detecting out-of-time-order correlations via quasiadiabatic echoes as a tool to reveal quantum coherence in equilibrium quantum phase transitions

RJ Lewis-Swan, SR Muleady, AM Rey - Physical Review Letters, 2020 - APS
We propose a new dynamical method to connect equilibrium quantum phase transitions and
quantum coherence using out-of-time-order correlations (OTOCs). Adopting the iconic Lipkin …

Heralded generation of macroscopic superposition states in a spinor Bose-Einstein condensate

L Pezzè, M Gessner, P Feldmann, C Klempt, L Santos… - Physical review …, 2019 - APS
Macroscopic superposition states enable fundamental tests of quantum mechanics and hold
a huge potential in metrology, sensing, and other quantum technologies. We propose to …

Fast generation of spin squeezing via resonant spin-boson coupling

D Barberena, SR Muleady, JJ Bollinger… - Quantum Science …, 2024 - iopscience.iop.org
We propose protocols for the creation of useful entangled states in a system of spins
collectively coupled to a bosonic mode, directly applicable to trapped-ion and cavity QED …

Boundary-induced singularity in strongly-correlated quantum systems at finite temperature

DZ Wang, GF Zhang, M Lewenstein… - Quantum Science and …, 2023 - iopscience.iop.org
Exploring the bulk-boundary correspondences and the boundary-induced phenomena in
the strongly-correlated quantum systems belongs to the most fundamental topics of …

Quantum Many-Body Dynamics of Atomic Systems for Quantum Simulation and Metrology

SR Muleady - 2023 - search.proquest.com
Understanding the physics of quantum many-body systems poses a significant challenge in
quantum science. These systems, when precisely controlled, have the potential to enable a …

Nonequilibrium phenomena in quantum many-body systems with long-range interactions

A Lerose - 2019 - iris.sissa.it
The focus of this thesis work is on the role of long-range interactions in the nonequilibrium
coherent quantum dynamics. I have explored a number of settings in which long-range …