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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

Bertin Bruno PhD candidate
+33.4.91.26.97.83 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
Chef de l’équipe « Nanophysique »
+33.4.91.26.95.25 Email
IYER Kishore PhD candidate
+33.4.91.26.95.60 Email
Jonckheere Thibaut Researcher
+33.4.91.26.95.36 Email
MALLA Modar PhD candidate
Email
Martin Thierry Director
University faculty
Correspondant LabEx OCEVU
Référent pôle de recherche interdisciplinaire et intersectoriel AMU - Sciences, technologies avancées
+33.4.91.26.95.41 Email
Raymond Laurent University faculty
+33.4.91.26.95.50 Email
Rech Jérôme Researcher
+33.4.91.26.95.34 Email
Verga Alberto University faculty
+33.4.91.26.95.04 Email

List of Publications

103 results
Preprint, Working paper
Mélanie Ruelle, Elric Frigerio, Jean-Marc Berroir, Bernard Plaçais, Jérôme Rech, Antonella Cavanna, Ulf Gennser, Y. Jin, Gwendal Fève
Comparing fractional quantum Hall Laughlin and Jain topological orders with the anyon collider
2022
Journal article
Adeline Crépieux, M. Lavagna
Dynamical charge susceptibility in nonequilibrium double quantum dots
Physical Review B, 2022, 106 (11), pp.115439. ⟨10.1103/PhysRevB.106.115439⟩
Preprint, Working paper
Thibaut Jonckheere, Jérôme Rech, Benoît Grémaud, Thierry Martin
Anyonic statistics revealed by the Hong-Ou-Mandel dip for fractional excitations
2022
Journal article
Benoît Grémaud, A. Popoff, Jérôme Rech, Thibaut Jonckheere, Laurent Raymond, S. Malherbe, Thierry Martin
Scattering Theory of Non-Equilibrium Noise and Delta $T$ current fluctuations through a quantum dot
Journal of Physics: Condensed Matter, IOP Publishing, 2022, ⟨10.1088/1361-648X/ac5200⟩
Journal article
Benoît Grémaud, Si Min Chan, G. G. Batrouni
Pairing and superconductivity in quasi one-dimensional flat band systems: Creutz and sawtooth lattices
Physical Review B, 2022, ⟨10.1103/PhysRevB.105.024502⟩
Journal article
Bruno Bertin-Johannet, Jérôme Rech, Thibaut Jonckheere, Benoît Grémaud, Laurent Raymond, Thierry Martin
Microscopic theory of photo-assisted electronic transport in normal-metal/BCS-superconductor junctions
Physical Review B, American Physical Society, 2022, 105 (11), pp.115112. ⟨10.1103/PhysRevB.105.115112⟩
Journal article
Pierre Devillard, A. Benzahi, P. Vignolo, Mathias Albert
Statistical properties of the momentum occupation numbers of the Tonks-Girardeau gas in a harmonic trap
Physical Review A, American Physical Society 2021, 104 (5), pp.053306. ⟨10.1103/PhysRevA.104.053306⟩
Journal article
Silvana Guitarra, P. Mahato, D. Deleruyelle, L. Raymond, L. Trojman
Stochastic based compact model to predict highly variable electrical characteristics of organic CBRAM devices
Solid-State Electronics, Elsevier, 2021, 185, pp.108055. ⟨10.1016/j.sse.2021.108055⟩
Journal article
Benoît Grémaud, G. G. Batrouni
Pairing and pair superfluid density in one-dimensional Hubbard models
Physical Review Letters, American Physical Society, 2021, 127 (2), pp.025301. ⟨10.1103/PhysRevLett.127.025301⟩
Journal article
A Popoff, A V Lebedev, L Raymond, T Jonckheere, Jérôme Rech, T Martin
Renormalization flow of a weak extended backscattering Hamiltonian in a non-chiral Tomonaga-Luttinger liquid
Journal of Physics: Condensed Matter, IOP Publishing, 2021, 33 (11), pp.115602. ⟨10.1088/1361-648X/abd525⟩
103 results

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