105 citations · 226 across the 18 of their papers we have counts for
19 papers
Nonlinear quantum Kibble-Zurek ramps in open systems at finite temperature
Johannes N. Kriel, Emma C. King, Michael Kastner
We analyze quantum systems under a broad class of protocols in which the temperature and a Hamiltonian control parameter are ramped simultaneously and, in general, in a nonlinear f…
Generating Generalised Ground-State Ansatzes from Few-Body Examples
Matt Lourens, Ilya Sinayskiy, Johannes N. Kriel +1
We introduce a method that generates ground-state ansatzes for quantum many-body systems which are both analytically tractable and accurate over wide parameter regimes. Our approac…
Adiabatic quantum trajectories in engineered reservoirs
Emma C. King, Luigi Giannelli, Raphaël Menu +2
We analyze the efficiency of protocols for adiabatic quantum state transfer assisted by an engineered reservoir. The target dynamics is a quantum trajectory in the Hilbert space an…
Long-range Kitaev chain in a thermal bath: Analytic techniques for time-dependent systems and environments
Emma C. King, Michael Kastner, Johannes N. Kriel
We construct and solve a "minimal model" with which nonequilibrium phenomena in many-body open quantum systems can be studied analytically under time-dependent parameter changes in…
Universal cooling dynamics toward a quantum critical point
Emma C. King, Johannes N. Kriel, Michael Kastner
We investigate the loss of adiabaticity when cooling a many-body quantum system from an initial thermal state toward a quantum critical point. The excitation density, which quantif…
Integrable active atom interferometry
Michael Kastner, Vincent Menet, Johannes N. Kriel
Active interferometers are designed to enhance phase sensitivity beyond the standard quantum limit by generating entanglement inside the interferometer. An atomic version of such a…