Publications (10)
Persistent control of a superconducting qubit by stroboscopic measurement feedback
Philippe Campagne-Ibarcq, Emmanuel Flurin, Nicolas Roch +6
Making a system state follow a prescribed trajectory despite fluctuations and errors commonly consists in monitoring an observable (temperature, blood-glucose level...) and reactin…
The optical absorption in indirect semiconductor to semimetal PtSe2 arises from direct transitions
Marin Tharrault, Sabrine Ayari, Mehdi Arfaoui +12
is a van der Waals material transitioning from an indirect bandgap semiconductor to a semimetal with increasing thickness. Its absorption threshold has been conjectur…
Layering transitions in superfluid helium adsorbed on a carbon nanotube mechanical resonator
Adrien Noury, Jorge Vergara-Cruz, Pascal Morfin +5
Helium is recognized as a model system for the study of phase transitions. Of particular interest is the superfluid phase in two dimensions. We report measurements on superfluid he…
Status and future development of the COSMOCal Project for absolute CMB polarization calibration
Silvia Micheli, Alessia Ritacco, Alessandro Carones +36
The paper outlines the COSMOCal project, which will place an artificial polarized microwave source on a geostationary satellite to provide stable absolute calibration for CMB polar…
Dissipating quartets of excitations in a superconducting circuit
Aron Vanselow, Brieuc Beauseigneur, Louis Lattier +5
Over the past decade, autonomous stabilization of bosonic qubits has emerged as a promising approach for hardware-efficient protection of quantum information. However, applying the…
Widely tunable, non-degenerate three-wave mixing microwave device operating near the quantum limit
Nicolas Roch, Emmanuel Flurin, François Nguyen +4
We present the first experimental realization of a widely frequency tunable, non-degenerate three-wave mixing device for quantum signals at GHz frequency. It is based on a new supe…
Single Carbon Nanotube Transistor at GHz Frequency
Julien Chaste, Lorenz Lechner, Pascal Morfin +7
We report on microwave operation of top-gated single carbon nanotube transistors. From transmission measurements in the 0.1-1.6 GHz range, we deduce device transconductance gm and…
Revealing the electronic structure of a carbon nanotube carrying a supercurrent
Jean-Damien Pillet, Charis Quay, Pascal Morfin +3
Carbon nanotubes (CNTs) are not intrinsically superconducting but they can carry a supercurrent when connected to superconducting electrodes. This supercurrent is mainly transmitte…
Propagation, dissipation and breakdown in quantum anomalous Hall edge states probed by microwave edge plasmons
Torsten Röper, Hugo Thomas, Daniel Rosenbach +7
The quantum anomalous Hall (QAH) effect, with its single chiral, topologically protected edge state, offers a platform for flying Majorana states as well as non-reciprocal microwav…
Velocity and confinement of edge plasmons in HgTe-based 2D topological insulators
Alexandre Gourmelon, Elric Frigerio, Hiroshi Kamata +10
High-frequency transport in the edge states of the quantum spin Hall (QSH) effect has to date rarely been explored, though it could cast light on the scattering mechanisms taking p…