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), together with the Coldatom 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 mainly fall within the fields of coldatom physics and quantum information theory. More specifically, we are interested in
 the consequences of the coupling between internal and external degrees of freedom of (cold) atoms, mainly in the context of open quantum systems or systems with dipoledipole interactions,
 the entanglement in multiqubit symmetric states (we study the separability, classification and quantification of entanglement).
We are also active in the study of (quantum) chaos and the multifractality of quantum wavefunctions.



Recherche_en_image


Husimi function of an anticoherent spin state

The queens of quantum











Quantumenhanced measurement exploiting dissipation

Geometric entanglement of 4qubit 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 Npartite correlations 
Address
Our lab is located at the "Institut de Physique Nucléaire, Atomique et de Spectroscopie”, building B15, on the campus of Sart Tilman.
See here for maps.
IPNAS (Institut de Physique nucléaire, Atomique et de Spectroscopie)