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

Bertin Bruno PhD candidate
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Crépieux Adeline University faculty
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Devillard Pierre University faculty
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Gremaud Benoît Researcher
Chef de l’équipe « Nanophysique »
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IYER Kishore PhD candidate
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Jonckheere Thibaut Researcher
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MALLA Modar PhD candidate
Martin Thierry Director
University faculty
Correspondant LabEx OCEVU
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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Verga Alberto University faculty
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List of Publications

100 results
Preprint, Working paper
Benoît Grémaud, Si Min Chan, G. G. Batrouni
Pairing and superconductivity in quasi one-dimensional flat band systems: Creutz and sawtooth lattices
Preprint, Working paper
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 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⟩
Journal article
M. Hashisaka, T. Jonckheere, T. Akiho, S. Sasaki, J. Rech, T. Martin, K. Muraki
Andreev reflection of fractional quantum Hall quasiparticles
Nature Communications, Nature Publishing Group, 2021, 12 (1), pp.2794. ⟨10.1038/s41467-021-23160-6⟩
Journal article
Adeline Crépieux
Electronic heat current fluctuations in a quantum dot
Physical Review B, American Physical Society, 2021, 103 (4), pp.045427. ⟨10.1103/PhysRevB.103.045427⟩
Journal article
Silvana Guitarra, Laurent Raymond, Lionel Trojman
Stochastic multiscale model for HfO2-based resistive random access memories with 1T1R configuration
Solid-State Electronics, Elsevier, 2021, 176, pp.107947. ⟨10.1016/j.sse.2020.107947⟩
Journal article
Dario Bercioux, Tineke van den Berg, Dario Ferraro, Jérôme Rech, Thibaut Jonckheere, Thierry Martin
Wave-particle duality of electrons with spin-momentum locking
The European Physical Journal Plus, Springer, 2020, 135 (10), pp.811. ⟨10.1140/epjp/s13360-020-00837-3⟩
100 results


June 2022 :

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