584 citations · 3.2k across the 67 of their papers we have counts for
10 papers · 1 filter
Thermometry of Strongly Correlated Fermionic Quantum Systems using Impurity Probes
George Mihailescu, Steve Campbell, Andrew K. Mitchell
We study quantum impurity models as a platform for quantum thermometry. A single quantum spin-1/2 impurity is coupled to an explicit, structured, fermionic thermal environment whic…
Entropy of the quantum work distribution
Anthony Kiely, Eoin O'Connor, Thomás Fogarty +2
The statistics of work done on a quantum system can be quantified by the two-point measurement scheme. We show how the Shannon entropy of the work distribution admits a general upp…
DQC1 as an Open Quantum System
Jake Xuereb, Steve Campbell, John Goold +1
The DQC1 complexity class, or power of one qubit model, is examined as an open quantum system. We study the dynamics of a register of qubits carrying out a DQC1 algorithm and show…
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…
Non-Gaussian work statistics at finite-time driving
Krissia Zawadzki, Anthony Kiely, Gabriel T. Landi +1
We study properties of the work distribution of a many-body system driven through a quantum phase transition in finite time. We focus on the non-Gaussianity of the distribution, wh…
Commutativity and the emergence of classical objectivity
Eoghan Ryan, Eoin Carolan, Steve Campbell +1
We examine how the ability of a system to redundantly proliferate relevant information about its pointer states is affected when it is coupled to multiple baths. To this end, we co…
Classical dissipative cost of quantum control
Anthony Kiely, Steve Campbell, Gabriel T. Landi
Protocols for non-adiabatic quantum control often require the use of classical time varying fields. Assessing the thermodynamic cost of such protocols, however, is far from trivial…
Periodically refreshed quantum thermal machines
Archak Purkayastha, Giacomo Guarnieri, Steve Campbell +2
We introduce unique class of cyclic quantum thermal machines (QTMs) which can maximize their performance at the finite value of cycle duration where they are most irreversible.…
Correlations, information backflow, and objectivity in a class of pure dephasing models
Nina Megier, Andrea Smirne, Steve Campbell +1
We critically examine the role that correlations established between a system and fragments of its environment play in characterising the ensuing dynamics. We employ a class of dep…
Optimal Control in Disordered Quantum Systems
Luuk Coopmans, Steve Campbell, Gabriele De Chiara +1
We investigate several control strategies for the transport of an excitation along a spin chain. We demonstrate that fast, high fidelity transport can be achieved using protocols d…