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 |
Edge states in a two-dimensional quantum walk with disorder
The European Physical Journal B: Condensed Matter and Complex Systems, 2017, 90 (3), pp.41. (10.1140/epjb/e2017-70433-1)
Hanbury Brown and Twiss noise correlations in a topological superconductor beam splitter
Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2017, 95 (5), pp.054514. (10.1103/PhysRevB.95.054514)
Probing Majorana and Andreev bound states with waiting times
EPL - Europhysics Letters, 2016, 116 (2), pp.27005. (10.1209/0295-5075/116/27005)
Decoherence and relaxation of a single electron in a one-dimensional conductor
Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2016, 94 (11), pp.115311. (10.1103/PhysRevB.94.115311)
Nonsymmetrized noise in a quantum dot: Interpretation in terms of energy transfer and coherent superposition of scattering paths
Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2016, 93 (23), pp.235449. (10.1103/PhysRevB.93.235449)
Electron interferometry in integer quantum Hall edge channels
Journal of Statistical Mechanics: Theory and Experiment, 2016, pp.054008. (10.1088/1742-5468/2016/05/054008)
Heat-charge mixed noise and thermoelectric efficiency fluctuations
Journal of Statistical Mechanics: Theory and Experiment, 2016, 2016, pp.054015. (10.1088/1742-5468/2016/05/054015)
Two-electron coherence and its measurement in electron quantum optics
Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2016, 93 (8), pp.081302. (10.1103/PhysRevB.93.081302)
Finite-frequency noise in a non-interacting quantum dot
Journal of Statistical Mechanics: Theory and Experiment, 2016, Special Issue on Unsolved Problems of Noise in Physics, Biology and Technology, 2016, pp.054013. (10.1088/1742-5468/2016/05/054013)
Spin-transfer Torque and Topological Changes of Magnetic Textures
Discontinuity, Nonlinearity, and Complexity, 2016, 5 (1), pp.19--24. (10.5890/DNC.2016.03.003)
