11 papers
Shortcuts to adiabaticity with a quantum control field
Emma C. King, Giovanna Morigi, Raphaël Menu
Quantum adiabatic dynamics is the crucial element of adiabatic quantum computing and quantum annealing. Shortcuts to adiabaticity enable acceleration of the computational time by s…
Universal cooling of quantum systems via randomized measurements
Josias Langbehn, George Mouloudakis, Emma King +5
Designing cooling protocols is believed to require knowledge of the system spectrum. In contrast, cooling in nature occurs whenever the system is coupled to a cold bath. How does n…
Speeding up Quantum Annealing with Engineered Dephasing
Mykolas Sveistrys, Josias Langbehn, Raphaël Menu +3
Building on the insight that engineered noise, specifically, engineered dephasing can enhance the adiabaticity of controlled quantum dynamics, we investigate how a dephasing-genera…
Dynamical phases of a BEC in a bad optical cavity at optomechanical resonance
Gage W. Harmon, Giovanna Morigi, Simon B. Jäger
We study the emergence of dynamical phases of a Bose-Einstein condensate that is optomechanically coupled to a dissipative cavity mode and transversally driven by a laser. We focus…
Spin self-organization in an optical cavity facilitated by inhomogeneous broadening
Marc Nairn, Luigi Giannelli, Giovanna Morigi +3
We study the onset of collective spin-self-organization in a thermal ensemble of driven two-level atoms confined in an optical cavity. The atoms spontaneously form a spin-pattern a…
Self-organized transport in noisy dynamic networks
Frederic Folz, Kurt Mehlhorn, Giovanna Morigi
We present a numerical study of multi-commodity transport in a noisy, nonlinear network. The nonlinearity determines the dynamics of the edge capacities, which can be amplified or…