145 citations · 366 across the 9 of their papers we have counts for
9 papers · 1 filter
Fisher information rates in sequentially measured quantum systems
Eoin O'Connor, Steve Campbell, Gabriel T. Landi
We consider the impact that temporal correlations in the measurement statistics can have on the achievable precision in a sequential metrological protocol. In this setting, and for…
Quantum work statistics of controlled evolutions
Steve Campbell
We use the quantum work statistics to characterize the controlled dynamics governed by a counterdiabatic driving field. Focusing on the Shannon entropy of the work probability dist…
Minimal action control method in quantum critical models
Ainur Kazhybekova, Steve Campbell, Anthony Kiely
We present a general protocol to control closed quantum systems that is based on minimising the adiabatic action. Using tools based on the geometry of quantum evolutions through th…
Stochastic collisional quantum thermometry
Eoin O'Connor, Bassano Vacchini, Steve Campbell
We extend collisional quantum thermometry schemes to allow for stochasticity in the waiting time between successive collisions. We establish that introducing randomness through a s…
Criticality revealed through quench dynamics the Lipkin-Meshkov-Glick model
Steve Campbell
We examine the dynamics after a sudden quench in the magnetic field of the Lipkin-Meshkov-Glick model. Starting from the groundstate and by employing the time-dependent fidelity, w…
Shortcut to Adiabaticity in the Lipkin-Meshkov-Glick Model
Steve Campbell, Gabriele De Chiara, Mauro Paternostro +2
We study transitionless quantum driving in an infinite-range many-body system described by the Lipkin-Meshkov-Glick model. Despite the correlation length being always infinite the…