Quantum Optics at ULiège

The group for Theoretical Quantum Optics, headed by Prof. John Martin since 2011, is part of the Atomic and Nuclear Physics pole of the University of Liège (Belgium), along with the Cold-atom Physics group (Prof. Thierry Bastin) and the Quantum Statistical Physics group (Prof. Peter Schlagheck). The Atomic and Nuclear Physics pole is part of a larger research unit named CESAM.

Our research activities revolve around quantum optics, quantum information theory, cold atom physics, and quantum chaos. More specifically, we are interested in

❯❯   open quantum systems (their description, dynamics, correlations, quantum phase transitions, ...),

❯❯   multipartite entanglement (its detection, classification and quantification) and non-classical correlations, in particular for multiqubit symmetric states and spin states,

❯❯   models displaying an Anderson delocalization-localization transition.



                                ULg


IPNAS

CESAM

Our research in pictures


Recherche_en_image

Geometric measure of entanglement
from Wehrl Moments using ANNs
Critical properties of the Anderson transition
in random graphs









Extreme depolarization of spin states
Symmetric Absolutely Separable states








Optimal quantum rotosensors
Anderson transition on random graphs








Husimi function of an anticoherent spin state
The queens of quantum








Quantum-enhanced measurement exploiting dissipation
Geometric entanglement of 4-qubit symmetric states








Superradiant pulse radiated by 30 indistinguishable atoms
Master equation for spontaneous emission by cold atoms








Poincaré section of a chaotic Bohmian trajectory
Genuinely entangled states without N-partite correlations



Address

Our lab is located at the IPNAS (Institut de Physique Nucléaire, Atomique et de Spectroscopie), building B15, on the campus of Sart Tilman. See here for maps.




© ULiege 2024 - John Martin