MajuLab Seminar by George Batrouni – 12 October 2023

4:30 PM Singapore time | 10:30 AM French time

In person at the CQT level 5 seminar room (05-14), NUS & online via Zoom. Registration is required.

Please register at:

George Batrouni, University of Côte d’Azur, France and Centre for Quantum Technologies, Singapore

Valerio Scarani

George Batrouni

George Batrouni is Emeritus Professor at University of Côte d’Azur and Visiting Professor at the Centre for Quantum Technologies. His research interest focus on on strongly
correlated systems, superconductivity and superfluidity, exotic quantum phases and phase transitions.


Superconductivity in flat bands

I will first discuss what flat band systems are, why they are the focus of so much interest and activity, demonstrate them in two simple (but nontrivial) models, and then give examples of real materials where they arise. I will then present results for a class of models where various aspects of the flat band system can be tuned one at a time in order to identify the features of these systems that help to enhance superconductivity which can be useful in designing materials. This talk is colloquium style and will be more descriptive than technical.

“Pairing and superconductivity in quasi one-dimensional flat band systems: Creutz and sawtooth lattices”, Si Min Chan, Benoît Grémaud, George Batrouni, Phys. Rev. B 105, 024502 (2022).
“Designer Flat Bands: Topology and Enhancement of Superconductivity”, Si Min Chan, Benoît Grémaud, George Batrouni, Phys. Rev. B 106, 104514 (2022).

MajuLab is an international joint research unit of the CNRS, UCA, SU, NUS and NTU in Singapore (IRL 3654), hosted by CQT and SPMS.