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Nanophysics

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
Email
Crépieux Adeline University faculty
+33.4.91.26.95.30 Email
Devillard Pierre University faculty
+33.4.91.26.95.23 Email
Gremaud Benoît Researcher
+33.4.91.26.95.25 Email
Jonckheere Thibaut Researcher
+33.4.91.26.95.36 Email
Martin Thierry Director
University faculty
Correspondant LabEx OCEVU
Chef de l’équipe « Nanophysique »
Référent pôle de recherche interdisciplinaire et intersectoriel AMU - Sciences, technologies avancées
+33.4.91.26.95.41 Email
Raymond Laurent University faculty
+33.4.91.28.83.13 Email
Rech Jérôme Researcher
+33.4.91.26.95.34 Email

List of Publications

69 results
Journal article
Flavio Ronetti, Matteo Acciai, Dario Ferraro, Jérôme Rech, Thibaut Jonckheere, Thierry Martin, Maura Sassetti
Symmetry Properties of Mixed and Heat Photo-Assisted Noise in the Quantum Hall Regime
Entropy, MDPI, 2019, 21 (8), pp.730. ⟨10.3390/e21080730⟩
Journal article
Flavio Ronetti, Luca Vannucci, Dario Ferraro, Thibaut Jonckheere, Jérôme Rech, Thierry Martin, Maura Sassetti
Hong-Ou-Mandel heat noise in the quantum Hall regime
Physical Review B : Condensed matter and materials physics, American Physical Society, 2019, 99 (20), pp.205406. ⟨10.1103/PhysRevB.99.205406⟩
Journal article
T. Kato, Y. Ohnuma, M. Matsuo, J. Rech, T. Jonckheere, T. Martin
Microscopic theory of spin transport at the interface between a superconductor and a ferromagnetic insulator
Physical Review B : Condensed matter and materials physics, American Physical Society, 2019, 99 (14), pp.144411. ⟨10.1103/PhysRevB.99.144411⟩
Journal article
D. Bathellier, L. Raymond, T. Jonckheere, Jérôme Rech, A. Zazunov, T. Martin
Finite frequency noise in a normal metal–topological superconductor junction
Physical Review B : Condensed matter and materials physics, American Physical Society, 2019, 99 (10), pp.104502. ⟨10.1103/PhysRevB.99.104502⟩
Book
Adeline Crépieux
Introduction à la physique de la matière condensée
Dunod, 2019, 978-2-10-078944-3
Journal article
Romain Jacquet, Jérôme Rech, Thibaut Jonckheere, Alex Zazunov, Thierry Martin
Unified scattering approach to Josephson current and thermal noise in BCS and topological superconducting junctions
European Physical Journal B: Condensed Matter and Complex Systems, Springer-Verlag, 2019, 92 (3), pp.59. ⟨10.1140/epjb/e2019-90461-y⟩
Journal article
Dario Ferraro, Flavio Ronetti, Luca Vannucci, Matteo Acciai, Jérôme Rech, Thibaut Jockheere, Thierry Martin, Maura Sassetti
Hong-Ou-Mandel characterization of multiply charged Levitons
European Physical Journal - Special Topics, EDP Sciences, 2018, 227 (12), pp.1345-1359. ⟨10.1140/epjst/e2018-800074-1⟩
Journal article
A. Crépieux, S. Sahoo, T.  Duong, Redouane Zamoum, M. Lavagna
Non-symmetrized quantum noise in a Kondo quantum dot
AIP Advances, American Institute of Physics- AIP Publishing LLC, 2018, 8 (10), pp.101326. ⟨10.1063/1.5043076⟩
Journal article
V. Talbo, M. Lavagna, T.  Duong, Adeline Crépieux
Charge susceptibility and conductances of a double quantum dot
AIP Advances, American Institute of Physics- AIP Publishing LLC, 2018, 8 (10), pp.101333. ⟨10.1063/1.5043108⟩
Journal article
Benoît Grémaud, Rubem Mondaini, G. George Batrouni
Pairing and superconductivity in the flat band: Creutz lattice
Physical Review B : Condensed matter and materials physics, American Physical Society, 2018, 98 (15), pp.155142. ⟨10.1103/PhysRevB.98.155142⟩
69 results

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