78 citations · 220 across the 14 of their papers we have counts for
14 papers
Fermion parity of an Andreev molecule probed by nonlocal Josephson effect
S. Annabi, H. Riechert, K. Watanabe +5
Fermion parity is a fundamental property of superconducting many-body states. Here, we show that the global fermion parity of a delocalized superconducting state can be detected lo…
Towards a Josephson element using aluminum junctions with well-transmitted channels
J. Griesmar, H. Riechert, M. Hantute +8
We introduce a novel method for fabricating all-aluminum Josephson junctions with highly transmitted conduction channels. Such properties are typically associated with structures r…
The carbon nanotube gatemon qubit
H. Riechert, S. Annabi, A. Peugeot +8
Gate-tunable transmon qubits are based on quantum conductors used as weak links within hybrid Josephson junctions. These gatemons have been implemented in just a handful of systems…
Influence of bias voltage noise on the Inelastic Cooper-Pair Tunneling Amplifier (ICTA)
Ulrich Martel, Romain Albert, Florian Blanchet +7
We experimentally show that the Inelastic Cooper-Pair Tunneling Amplifier (ICTA), implementing a DC-powered parametric amplification scheme, can achieve gain and noise performance…
Two-tone spectroscopy of high-frequency quantum circuits with a Josephson emitter
A. Peugeot, H. Riechert, S. Annabi +7
We perform two-tone spectroscopy on quantum circuits, where high-frequency radiation is generated by a voltage-biased superconductor-normal-superconductor Josephson junction and de…
Josephson junctions based on ultraclean carbon nanotubes
S. Annabi, E. Arrighi, A. Peugeot +6
We present a technique for integrating ultraclean carbon nanotubes into superconducting circuits, aiming to realize Josephson junctions based on one-dimensional elementary quantum…
Josephson Diode Effect in Andreev Molecules
J. -D. Pillet, S. Annabi, A. Peugeot +4
We propose a new platform for observing the Josephson diode effect: the Andreev molecule. This nonlocal electronic state is hosted in circuits made of two closely spaced Josephson…
Microwave photon-number amplification
Romain Albert, Joël Griesmar, Florian Blanchet +3
So far, quantum-limited power meters are not available in the microwave domain, hindering measurement of photon number in itinerant quantum states. On the one hand, single photon d…
Absorptive filters for quantum circuits: Efficient fabrication and cryogenic power handling
Alexandre Paquette, Joël Griesmar, Gabriel Lavoie +5
We present an efficient fabrication method for absorptive microwave filters based on Eccosorb CR-124. Filters are fabricated from readily available parts and their cut-off frequenc…
Superconducting on-chip spectrometer for mesoscopic quantum systems
J. Griesmar, R. H. Rodriguez, V. Benzoni +4
Spectroscopy is a powerful tool to probe physical, chemical, and biological systems. Recent advances in microfabrication have introduced novel, intriguing mesoscopic quantum system…
Transconductance quantization in a topological Josephson tunnel junction circuit
L. Peyruchat, J. Griesmar, J. -D. Pillet +1
Superconducting circuits incorporating Josephson tunnel junctions are widely used for fundamental research as well as for applications in fields such as quantum information and mag…
Scattering description of Andreev molecules
J. -D. Pillet, V. Benzoni, J. Griesmar +2
An Andreev molecule is a system of closely spaced superconducting weak links accommodating overlapping Andreev Bound States. Recent theoretical proposals have considered one-dimens…
Nonlocal Josephson effect in Andreev molecules
J. -D. Pillet, V. Benzoni, J. Griesmar +2
We propose the "Andreev molecule", an artificial quantum system composed of two closely spaced Josephson junctions. The coupling between Josephson junctions in an Andreev molecule…
Resonant magneto-optic Kerr effect in the magnetic topological insulator Cr:(Sb,Bi)Te
Shreyas Patankar, J. P. Hinton, Joel Griesmar +10
We report measurements of the polar Kerr effect, proportional to the out-of-plane component of the magnetization, in thin films of the magnetically doped topological insulator $(\t…