Group “Statistical Physics and Condensed Matter”
The nanophysics team at the CPT studies electronic transport in nanoscale and mesoscopic systems in condensed matter. The small size of these systems, and the conditions under which they are studied (low temperature, dimensionality, …), make it possible to preserve quantum coherence and to obtain novel behaviors arising from the fundamental properties of quantum mechanics.
A first research direction concerns superconducting and hybrid devices. In a superconductor, electrons are paired into Cooper pairs, and the coherent transport of pairs between two superconductors leads to the Josephson current. We have studied the properties of the Josephson current when it flows through a magnetic molecule, a semiconductor with spin–orbit coupling, etc. We also study out-of-equilibrium multi-terminal superconducting and hybrid devices, which make it possible to spatially separate the two electrons of Cooper pairs, thereby generating quantum entanglement.
A second research direction concerns the quantum Hall effect, in which electronic transport occurs in one-dimensional edge states. Electronic interactions lead to the emergence of collective transport modes characterized by an elementary charge different from the electron charge. One-dimensional transport also makes it possible to study electronic quantum optics, in which the concepts of quantum optics are transposed to the case of individual electrons.
A third research direction concerns quantum thermoelectricity, which is of interest both fundamentally and for applications. We have shown that the Seebeck coefficient can be strongly increased in the transient regime and we have highlighted the strong link between thermoelectric efficiency and mixed charge/heat correlations. We continue the study of mixed noise in different types of nanojunctions.
| BENCHTABER | Nassima | Post Ph.D. | Contact | |
| BHATTACHARYA | Rupoma | Ph.D. | Contact | |
| CREPIEUX | Adeline | Research teacher | +33.4.91.26.95.30 | Contact |
| DEMAZURE | Noe | Ph.D. | Contact | |
| DEVILLARD | Pierre | Research teacher | +33.4.91.26.95.23 | Contact |
| GREMAUD | Benoit | Researcher Team leader « Nanophysics » | +33.4.91.26.95.25 | Contact |
| JONCKHEERE | Thibaut | Researcher | +33.4.91.26.95.36 | Contact |
| MARTIN | Thierry | Research teacher | +33.4.91.26.95.41 | Contact |
| PATISSIER | Sam | Ph.D. | Contact | |
| RATNAKAR | Amulya | Post Ph.D. | Contact | |
| RAYMOND | Laurent | Research teacher Deputy director | +33.4.91.26.95.50 | Contact |
| RECH | Jerome | Researcher Unit leader « Physique statistique et matière condensée » | +33.4.91.26.95.34 | Contact |
| RONETTI | Flavio | Research teacher | Contact | |
| VERGA | Alberto | Research teacher | +33.4.91.26.95.04 | Contact |
Entanglement dynamics and phase transitions of the Floquet cluster spin chain
Phys.Rev.B, 2023, 103 (8), pp.104306. (10.1103/PhysRevB.107.085116)
Comparing Fractional Quantum Hall Laughlin and Jain Topological Orders with the Anyon Collider
Physical Review X, 2023, 13 (1), pp.011031. (10.1103/PhysRevX.13.011031)
Dynamical charge susceptibility in nonequilibrium double quantum dots
Physical Review B, 2022, 106 (11), pp.115439. (10.1103/PhysRevB.106.115439)
Designer flat bands: Topology and enhancement of superconductivity
Physical Review B, 2022, 106 (10), pp.104514. (10.1103/PhysRevB.106.104514)
Dynamical charge susceptibility in nonequilibrium double quantum dots
Physical Review B, 2022, 106 (11), pp.115439. (10.1103/PhysRevB.106.115439)
Spontaneous fractional Josephson current from parafermions
2022
Analysis of the reset transition in bipolar HfO2-based ReRAM to improve modeling accuracy
Latin American Electron Devices Conference (LAEDC), Jul 2022, Cancun, Mexico. (10.1109/LAEDC54796.2022.9908218)
Scattering Theory of Non-Equilibrium Noise and Delta $T$ current fluctuations through a quantum dot
Journal of Physics: Condensed Matter, 2022, 34 (18), pp.185301. (10.1088/1361-648X/ac5200)
Pairing and superconductivity in quasi one-dimensional flat band systems: Creutz and sawtooth lattices
Physical Review B, 2022, 105 (2), pp.24502. (10.1103/PhysRevB.105.024502)
Microscopic theory of photo-assisted electronic transport in normal-metal/BCS-superconductor junctions
Physical Review B, 2022, 105 (11), pp.115112. (10.1103/PhysRevB.105.115112)
