Publications (53)
Intensity of Coulomb Interaction between quasiparticles in diffusive metallic wires
B. Huard, A. Anthore, F. Pierre +3
The energy dependence and intensity of Coulomb interaction between quasiparticles in metallic wires is obtained from two different methods: determination of the temperature depende…
Electron Dephasing in Mesoscopic Metal Wires
Norman O. Birge, F. Pierre
The low-temperature behavior of the electron phase coherence time, , in mesoscopic metal wires has been a subject of controversy recently. Whereas theory predicts that $Ï_Ï…
Magnetic-field-dependent quasiparticle energy relaxation in mesoscopic wires
A. Anthore, F. Pierre, H. Pothier +1
In order to find out if magnetic impurities can mediate interactions between quasiparticles in metals, we have measured the effect of a magnetic field B on the energy distribution…
Magnetic field anti-symmetry of photovoltaic voltage in evanescent microwave fields
A. Chepelianskii, S. Guéron, F. Pierre +3
A two dimensional electron system without spatial inversion symmetry develops a sample specific dc voltage when exposed to a microwave radiation at low temperature. We investigate…
Observing the universal screening of a Kondo impurity
C. Piquard, P. Glidic, C. Han +7
The Kondo effect, deriving from a local magnetic impurity mediating electron-electron interactions, constitutes a flourishing basis for understanding a large variety of intricate m…
Quantum limit of heat flow across a single electronic channel
S. Jezouin, F. D. Parmentier, A. Anthore +4
Quantum physics predicts that there is a fundamental maximum heat conductance across a single transport channel, and that this thermal conductance quantum is universal, indep…
Circuit Quantum Simulation of a Tomonaga-Luttinger Liquid with an Impurity
A. Anthore, Z. Iftikhar, E. Boulat +5
The Tomonaga-Luttinger liquid (TLL) concept is believed to generically describe the strongly-correlated physics of one-dimensional systems at low temperatures. A hallmark signature…
An RF-Driven Josephson Bifurcation Amplifier for Quantum Measurements
I. Siddiqi, R. Vijay, F. Pierre +5
We have constructed a new type of amplifier whose primary purpose is the readout of superconducting quantum bits. It is based on the transition of an RF-driven Josephson junction b…
Transferring the quantum state of electrons across a Fermi sea with Coulomb interaction
H. Duprez, E. Sivre, A. Anthore +4
The Coulomb interaction generally limits the quantum propagation of electrons. However, it can also provide a mechanism to transfer their quantum state over larger distances. Here,…
The T2K Experiment
T2K Collaboration, K. Abe, N. Abgrall +520
The T2K experiment is a long-baseline neutrino oscillation experiment. Its main goal is to measure the last unknown lepton sector mixing angle θ_{13} by observing ν_e appearance…
The Josephson Bifurcation Amplifier for Quantum Measurements
I. Siddiqi, R. Vijay, F. Pierre +5
We have constructed a new type of amplifier whose primary purpose is the readout of superconducting quantum bits. It is based on the transition of an RF-driven Josephson junction b…
Experimental Evidence of Fractional Entropy in Critical Kondo Systems
C. Piquard, A. Veillon, Y. Sato +7
Unconventional quantum states defying the ubiquitous Fermi-liquid paradigm can emerge in the presence of strong electronic correlations. Among these, non-Abelian anyons - such as M…
Macroscopic electron quantum coherence in a solid-state circuit
H. Duprez, E. Sivre, A. Anthore +5
The quantum coherence of electronic quasiparticles underpins many of the emerging transport properties of conductors at small scales. Novel electronic implementations of quantum op…
Probing interactions in mesoscopic gold wires
F. Pierre, H. Pothier, D. Esteve +3
We have measured in gold wires the energy exchange rate between quasiparticles, the phase coherence time of quasiparticles and the resistance vs. temperature, in order to probe the…
Energy redistribution between quasiparticles in mesoscopic silver wires
F. Pierre, H. Pothier, D. Esteve +1
We have measured with a tunnel probe the energy distribution function of quasiparticles in silver diffusive wires connected to two large pads (``reservoirs''), between which a bias…
Controlling charge quantization with quantum fluctuations
S. Jezouin, Z. Iftikhar, A. Anthore +9
In 1909, Millikan showed that the charge of electrically isolated systems is quantized in units of the elementary electron charge e. Today, the persistence of charge quantization i…
Energy Relaxation in the Integer Quantum Hall Regime
H. le Sueur, C. Altimiras, U. Gennser +3
We investigate the energy exchanges along an electronic quantum channel realized in the integer quantum Hall regime at filling factor . One of the two edge channels is driv…
Heat Coulomb Blockade of One Ballistic Channel
E. Sivre, A. Anthore, F. D. Parmentier +5
Quantum mechanics and Coulomb interaction dictate the behavior of small circuits. The thermal implications cover fundamental topics from quantum control of heat to quantum thermody…
Tunable Quantum Criticality and Super-ballistic Transport in a `Charge' Kondo Circuit
Z. Iftikhar, A. Anthore, A. K. Mitchell +7
Quantum phase transitions are ubiquitous in many exotic behaviors of strongly-correlated materials. However the microscopic complexity impedes their quantitative understanding. Her…
Measurements of the T2K neutrino beam properties using the INGRID on-axis near detector
K. Abe, N. Abgrall, Y. Ajima +428
Precise measurement of neutrino beam direction and intensity was achieved based on a new concept with modularized neutrino detectors. INGRID (Interactive Neutrino GRID) is an on-ax…
Nonequilibrium transport in mesoscopic multi-terminal SNS Josephson junctions
M. S. Crosser, Jian Huang, F. Pierre +4
We report the results of several nonequilibrium experiments performed on superconducting/normal/superconducting (S/N/S) Josephson junctions containing either one or two extra termi…
Tomonaga-Luttinger physics in electronic quantum circuits
S. Jezouin, M. Albert, F. D. Parmentier +5
In one-dimensional conductors, interactions result in correlated electronic systems. At low energy, a hallmark signature of the so-called Tomonaga-Luttinger liquids (TLL) is the un…
Non-Equilibrium Edge Channel Spectroscopy in the Integer Quantum Hall Regime
C. Altimiras, H. le Sueur, U. Gennser +3
Heat transport has large potentialities to unveil new physics in mesoscopic systems. A striking illustration is the integer quantum Hall regime, where the robustness of Hall curren…
Two-channel Kondo effect and renormalization flow with macroscopic quantum charge states
Z. Iftikhar, S. Jezouin, A. Anthore +4
Many-body correlations and macroscopic quantum behaviors are fascinating condensed matter problems. A powerful test-bed for the many-body concepts and methods is the Kondo model wh…
First Muon-Neutrino Disappearance Study with an Off-Axis Beam
T2K Collaboration, K. Abe, N. Abgrall +443
We report a measurement of muon-neutrino disappearance in the T2K experiment. The 295-km muon-neutrino beam from Tokai to Kamioka is the first implementation of the off-axis techni…
Influence of Magnetic Field on Effective Electron-Electron Interactions in a Copper Wire
A. Anthore, F. Pierre, H. Pothier +2
We have measured in a copper wire the energy exchange rate between quasiparticles as a function of the applied magnetic field. We find that the effective electron-electron interact…
Quantum coherence engineering in the integer quantum Hall regime
P-A. Huynh, F. Portier, H. le Sueur +6
We present an experiment where the quantum coherence in the edge states of the integer quantum Hall regime is tuned with a decoupling gate. The coherence length is determined by me…
Tuning Energy Relaxation along Quantum Hall Channels
C. Altimiras, H. le Sueur, U. Gennser +3
The chiral edge channels in the quantum Hall regime are considered ideal ballistic quantum channels, and have quantum information processing potentialities. Here, we demonstrate ex…
Observation of a controllable PI-junction in a 3-terminal Josephson device
Jian Huang, F. Pierre, Tero T. Heikkila +2
Recently Baselmans et al. [Nature, 397, 43 (1999)] showed that the direction of the supercurrent in a superconductor/normal/superconductor Josephson junction can be reversed by app…
Engineering the localization transition in a Charge-Kondo circuit
Zhanyu Ma, Cheolhee Han, F. Pierre +1
Charge Kondo circuits consist of metallic islands connected by single-mode quantum point contacts (QPCs). The island's charging energy makes these circuits tunable quantum simulato…
Electronic heat flow and thermal shot noise in quantum circuits
E. Sivre, H. Duprez, A. Anthore +6
When assembling individual quantum components into a mesoscopic circuit, the interplay between Coulomb interaction and charge granularity breaks down the classical laws of electric…
Comparison of energy and phase relaxation in metallic wires
A. B. Gougam, F. Pierre, H. Pothier +2
We have measured the phase coherence time, in long, narrow wires of Au, Ag, and Cu, over the temperature range 40 mK-6 K. In the Cu and Au wires, saturates at low…
Signature of anyonic statistics in the integer quantum Hall regime
P. Glidic, I. Petkovic, C. Piquard +8
Anyons are exotic low-dimensional quasiparticles whose unconventional quantum statistics extends the binary particle division into fermions and bosons. The fractional quantum Hall…
AC Josephson effect and resonant Cooper pair tunneling emission of a Cooper Pair Transistor
P. -M. Billangeon, F. Pierre, H. Bouchiat +1
We measure the high-frequency emission of a single Cooper pair transistor(SCPT) in the regime where transport is only due to tunneling of Cooper pairs. This is achieved by coupling…
Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam
T2K Collaboration, K. Abe, N. Abgrall +408
The T2K experiment observes indications of appearance in data accumulated with protons on target. Six events pass all selection criteria…
Experimental Test of the Dynamical Coulomb Blockade Theory for Short Coherent Conductors
C. Altimiras, U. Gennser, A. Cavanna +2
We observed the recently predicted quantum suppression of dynamical Coulomb blockade on short coherent conductors by measuring the conductance of a quantum point contact embedded i…
Probing single-electron scattering through a non-Fermi liquid charge-Kondo device
Eran Sela, David Goldhaber-Gordon, A. Anthore +2
Among the exotic and yet unobserved features of multi-channel Kondo impurity models is their sub-unitary single electron scattering. In the two-channel Kondo model, for example, an…
Van der Waals solid phase epitaxy to grow large-area manganese-doped MoSe few-layers on SiO/Si
C. Vergnaud, M. Gay, C. Alvarez +10
Large-area growth of continuous transition metal dichalcogenides (TMDCs) layers is a prerequisite to transfer their exceptional electronic and optical properties into practical dev…
Heating Dynamics of Mesoscopic Electron Baths at High Magnetic Field
F. Zanichelli, A. Veillon, C. Piquard +8
Quantum thermodynamics addresses the dynamics of heat flow in quantum devices driven out of equilibrium. Although mesoscopic circuits at low temperatures provide a flexible platfor…
Universality at work -- the local sine-Gordon model, lattice fermions, and quantum circuits
A. Anthore, D. M. Kennes, E. Boulat +3
We review the intriguing many-body physics resulting out of the interplay of a single, local impurity and the two-particle interaction in a one-dimensional Fermi system. Even if th…
Chargeless heat transport in the fractional quantum Hall regime
C. Altimiras, H. le Sueur, U. Gennser +4
We demonstrate a direct approach to investigate heat transport in the fractional quantum Hall regime. At filling factor of 4/3, we inject power at quantum point contacts and detect…
Dephasing by extremely dilute magnetic impurities revealed by Aharonov-Bohm oscillations
F. Pierre, Norman O. Birge
We have probed the magnetic field dependence of the electron phase coherence time by measuring the Aharonov-Bohm conductance oscillations of mesoscopic Cu rings. Whereas $Ï…
Cross-Correlation Investigation of Anyon Statistics in the and Fractional Quantum Hall States
P. Glidic, O. Maillet, A. Aassime +6
Recent pioneering works have set the stage for exploring anyon braiding statistics from negative current cross-correlations along two intersecting quasiparticle beams. In such a du…
Direct Observation of Dynamical Switching between Two Driven Oscillation States of a Josephson Junction
I. Siddiqi, R. Vijay, F. Pierre +8
We performed a novel phase sensitive microwave reflection experiment which directly probes the dynamics of the Josephson plasma resonance in both the linear and non-linear regime.…
Dynamical Coulomb blockade under a temperature bias
H. Duprez, F. Pierre, E. Sivre +8
We observe and comprehend the dynamical Coulomb blockade suppression of the electrical conductance across an electronic quantum channel submitted to a temperature difference. A bro…
Universal conductance fluctuations in epitaxial GaMnAs ferromagnets: structural and spin disorder
L. Vila, R. Giraud, L. Thevenard +6
Mesoscopic transport measurements reveal a large effective phase coherence length in epitaxial GaMnAs ferromagnets, contrary to usual 3d-metal ferromagnets. Universal conductance f…
Emission and absorption asymmetry in the quantum noise of a Josephson junction
P. -M. Billangeon, F. Pierre, H. Bouchiat +1
We measure current fluctuations of mesoscopic devices in the quantum regime, when the frequency is of the order of or higher than the applied voltage or temperature. Detection is d…
Observation of the scaling dimension of fractional quantum Hall anyons
A. Veillon, C. Piquard, P. Glidic +7
Unconventional quasiparticles emerging in the fractional quantum Hall regime present the challenge of observing their exotic properties unambiguously. Although the fractional charg…
Quasiparticle Andreev scattering in the fractional quantum Hall regime
P. Glidic, O. Maillet, C. Piquard +6
The scattering of exotic quasiparticles may follow different rules than electrons. In the fractional quantum Hall regime, a quantum point contact (QPC) provides a source of quasipa…
Primary thermometry triad at 6 mK in mesoscopic circuits
Z. Iftikhar, A. Anthore, S. Jezouin +6
Quantum physics emerge and develop as temperature is reduced. Although mesoscopic electrical circuits constitute an outstanding platform to explore quantum behavior, the challenge…
Strong back-action of a linear circuit on a single electronic quantum channel
F. D. Parmentier, A. Anthore, S. Jezouin +5
What are the quantum laws of electricity in mesoscopic circuits? This very fundamental question has also direct implications for the quantum engineering of nanoelectronic devices.…
Very high frequency spectroscopy and tuning of a single-Cooper-pair-transistor with an on-chip generator
P. -M. Billangeon, F. Pierre, H. Bouchiat +1
We consider a single Cooper pair transistor (SCPT) coupled capacitively to a voltage biased Josephson junction, used as a high frequency generator. Thanks to the high energy of pho…
Dephasing of Electrons in Mesoscopic Metal Wires
F. Pierre, A. B. Gougam, A. Anthore +3
We have extracted the phase coherence time of electronic quasiparticles from the low field magnetoresistance of weakly disordered wires made of silver, copper and gold. In…