Centre de Physique Théorique

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Group “Statistical Mechanics and Condensed Matter”

The nanophysics team of the CPT studies quantum electronic transport in mesoscopic and nanoscopic systems of condensed matter. The reduced size of these systems, and the conditions of study (low temperature, dimensionnality, ...) guarantees that the quantum coherence is preserved, and lead to new behavior related to the fundamental properties of quantum physics.

Superconducting and hybrid systems are a first topic of research. In a superconductor, electrons form Cooper pairs, and coherent transport of Cooper pairs between two superconductors leads to Josephson current. We have studied the properties of Josephson current through a a magnetic molecule, a semi-conductor wih spin-orbit coupling, etc. We also study out-of-equilibrium supercondcuting and hybrid systems with several leads, where the two electrons of a Cooper pair can be spatially separated through cross Andreev reflection, providing a source of quantum entanglement.

A second topic of research is quantum Hall effect, where electronic transport is done through unidimensionnal edge states. The presence of electronic interactions leads to collective transport modes, where the effective charge is different from the electron charge. Statistics of the waiting time between electrons in these system is also a subject we are studying. Unidimensionnal transport can also be used to study electronic quantum optics, where the concepts of quantum optics are adapted to the case of individual electrons.

A third topic of research is quantum thermoelectricity, which is interesting both on a fundamental level and for applications. We have shown that the Seebeck coefficient can be strongly enhanced in the non-stationnary regime, and we have shown the strong link between thermoelectric efficiency and mixed correlators charge/heat. We continue the study of mixed correlators in several types of nanojunctions.

Directory of Members

Acciai Matteo PhD candidate
Crépieux Adeline University faculty
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Devillard Pierre University faculty
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Gremaud Benoît Researcher
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Jonckheere Thibaut Researcher
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Martin Thierry Director
University faculty
Correspondant LabEx OCEVU
Chef de l’équipe « Nanophysique »
Référent pôle de recherche interdisciplinaire et intersectoriel AMU - Sciences, technologies avancées
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Raymond Laurent University faculty
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Rech Jérôme Researcher
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List of Publications

69 results
Journal article
Thibaut Jonckheere, Takeo Kato
DC-Current Induced Domain Wall in a Chiral p-Wave Superconductor
Journal of the Physical Society of Japan, Physical Society of Japan 日本物理学会, 2018, 87 (9), pp.094705. ⟨10.7566/JPSJ.87.094705⟩
Journal article
Flavio Ronetti, Luca Vannucci, Dario Ferraro, Thibaut Jonckheere, Jérôme Rech, Thierry Martin, Maura Sassetti
Crystallization of Levitons in the fractional quantum Hall regime
Physical Review B : Condensed matter and materials physics, American Physical Society, 2018, 98 (7), pp.075401. ⟨10.1103/PhysRevB.98.075401⟩
Journal article
Matteo Acciai, Matteo Carrega, Jérôme Rech, Thibaut Jonckheere, Thierry Martin, Maura Sassetti
Probing interactions via nonequilibrium momentum distribution and noise in integer quantum Hall systems at ν = 2
Physical Review B : Condensed matter and materials physics, American Physical Society, 2018, 98 (3), ⟨10.1103/PhysRevB.98.035426⟩
Journal article
D. Ferraro, F. Ronetti, J. Rech, T. Jonckheere, M. Sassetti, T. Martin
Enhancing photon squeezing one Leviton at a time
Physical Review B : Condensed matter and materials physics, American Physical Society, 2018, 97 (15), pp.155135. ⟨10.1103/PhysRevB.97.155135⟩
Journal article
Luca Vannucci, Flavio Ronetti, Dario Ferraro, Jérôme Rech, Thibaut Jonckheere, Thierry Martin, Maura Sassetti
Photoassisted shot noise spectroscopy at fractional filling factor
Journal of Physics: Conference Series, IOP Publishing, 2018, 969 (1), pp.012143. ⟨10.1088/1742-6596/969/1/012143⟩
Journal article
Adeline Crépieux, S. Sahoo, T.  Duong, R. Zamoum, M. Lavagna
Emission Noise in an Interacting Quantum Dot: Role of Inelastic Scattering and Asymmetric Coupling to the Reservoirs
Physical Review Letters, American Physical Society, 2018, 120 (10), pp.107702. ⟨10.1103/PhysRevLett.120.107702⟩
Journal article
Dario Ferraro, Eugene Sukhorukov
Interaction effects in a multi-channel Fabry-Pérot interferometer in the Aharonov-Bohm regime
SciPost Physics, SciPost Foundation, 2017, 3 (2), pp.14. ⟨10.21468/SciPostPhys.3.2.014⟩
Journal article
Adeline Crépieux
Out-of-equilibrium fluctuation-dissipation relations verified by the electrical and thermoelectrical ac-conductances in a quantum dot
Annalen der Physik, 2017, 529 (9), pp.1600344. ⟨10.1002/andp.201600344⟩
Conference paper
Adeline Crépieux, Paul Eyméoud, Fabienne Michelini
Getting information from the mixed electrical-heat noise
24th International Conference on Noise and Fluctuations, Jun 2017, Vilnius, Lithuania. pp.1 - 4, ⟨10.1109/ICNF.2017.7985926⟩
Journal article
Luca Vannucci, Flavio Ronetti, Jérôme Rech, Dario Ferraro, Thibaut Jonckheere, Thierry Martin, Maura Sassetti
Minimal excitation states for heat transport in driven quantum Hall systems
Physical Review B : Condensed matter and materials physics, American Physical Society, 2017, 95 (24), pp.245415. ⟨10.1103/PhysRevB.95.245415⟩
69 results