Heating progressively drives the transition from quantum to classical behaviors. Nonetheless, the transport of heat itself is ruled by the laws of quantum mechanics.
In the QPC team, we explore the quantum aspects of heat transport, establishing experimentally the basic foundations of quantum theory.
The study of heat/energy transfers also provides a very revealing viewpoint on the many-body quantum physics in electrical circuit. With this approach, we explore the electronic correlations, the relaxation and quantum decoherence mechanisms or the nature of electronic degrees of freedom in low-dimensional conductors.
Figure 1: The energy distribution f(E) spectroscopy along a 1D quantum Hall channel (continuous lines) is here performed using the discrete electronic levels of a small quantum dot (circle) as energy filters.
Figure 2: The flow of heat across a tunable number of electronic quantum channels (small constrictions between the yellow split gates) is obtained by injecting a few femto-watts of Joules power into a small metallic island (brown) and by measuring the resulting increase in temperature from the electrical current fluctuations.
Dynamical Coulomb blockade under a temperature bias
H. Duprez, F. Pierre, E. Sivre, A. Aassime, F.D. Parmentier, A. Cavanna, A. Ouerghi, U. Gennser, I. Safi, C. Mora, A. Anthore
Physical Review Research 3, 023122 (2021)
Electronic heat flow and thermal shot noise in quantum circuits
E. Sivre, H. Duprez, A. Anthore, A. Aassime, F.D. Parmentier, A. Cavanna, A. Ouerghi, U. Gennser, F. Pierre
Nature Communications 10, 5638 (2019)
Heat Coulomb blockade of one ballistic channel
E. Sivre, A. Anthore, F.D. Parmentier, A. Cavanna, U. Gennser, A. Ouerghi, Y. Jin, F. Pierre
Nature Physics 14, 145 (2018)
Limite quantique du flux de chaleur
A. Anthore, S. Jezouin, F. Parmentier, U. Gennser, F. Pierre
Reflets Phys. 42, 16-19 (2014)
Quantum Limit of Heat Flow Across a Single Electronic Channel
S. Jezouin, F.D. Parmentier, A. Anthore, U. Gennser, A. Cavanna, Y. Jin, F. Pierre
Science 342, 601 (2013)
Science Perspectives: Science 342, 569 (2013)
La Recherche: La Recherche 503, 58 (09/2015)
Chargeless heat transport in the fractional quantum Hall regime
C. Altimiras, H. le Sueur, U. Gennser, A. Anthore, A. Cavanna, D. Mailly, F. Pierre
Phys. Rev. Lett. 109, 026803 (2012)
Quantum coherence engineering in the integer quantum Hall regime
P-A. Huynh, F. Portier, H. le Sueur, G. Faini, U. Gennser, D. Mailly, F. Pierre, W. Wegscheider, P. Roche
Phys. Rev. Lett. 108, 256802 (2012)
A la recherche des interactions électron-électron dans les conducteurs unidimensionnels
A. Anthore, H. le Sueur, C. Altimiras, U. Gennser, D. Mailly, F. Pierre
Images de la physique 2010 (2011)
Tuning Energy Relaxation along Quantum Hall Channels
C. Altimiras, H. le Sueur, U. Gennser, A. Cavanna, D. Mailly, F. Pierre
Phys. Rev. Lett. 105, 226804 (2010)
Plasmon scattering approach to energy exchange and high-frequency noise in nu=2 quantum Hall edge channels
P. Degiovanni, C. Grenier, G. Feve, C. Altimiras, H. le Sueur, F. Pierre
Phys. Rev. B 81, 121302(R) (2010)
Energy Relaxation in the Integer Quantum Hall Regime
H. le Sueur, C. Altimiras, U. Gennser, A. Cavanna, D. Mailly, F. Pierre
Phys. Rev. Lett. 105, 056803 (2010)
Non-equilibrium edge-channel spectroscopy in the integer quantum Hall regime
C. Altimiras, H. le Sueur, U. Gennser, A. Cavanna, D. Mailly, F. Pierre
Nature Physics 6, 34 (2010)
Journal Club for Condensed Matter Physics: Commentary by Leonid Glazman (11/2009)
