211 citations · 1.4k across the 34 of their papers we have counts for
35 papers
The SpinPulse library for transpilation and noise-accurate simulation of spin qubit quantum computers
Benoît Vermersch, Oscar Gravier, Nathan Miscopein +6
We introduce SpinPulse, an open-source python package for simulating spin qubit-based quantum computers at the pulse-level. SpinPulse models the specific physics of spin qubits, pa…
A foundry-fabricated spin qubit unit cell with in-situ dispersive readout
Pierre Hamonic, Mathieu Toubeix, Guillermo Haas +10
Spin qubits based on semiconductor quantum dots are a promising prospect for quantum computation because of their high coherence times and gate fidelities. However, scaling up thos…
Combining multiplexed gate-based readout and isolated CMOS quantum dot arrays
Pierre Hamonic, Martin Nurizzo, Jayshankar Nath +15
Semiconductor quantum dot arrays are a promising platform to perform spin-based error-corrected quantum computation with large numbers of qubits. However, due to the diverging numb…
Broadband parametric amplification for multiplexed SiMOS quantum dot signals
Victor Elhomsy, Luca Planat, David J. Niegemann +14
Spins in semiconductor quantum dots hold great promise as building blocks of quantum processors. Trapping them in SiMOS transistor-like devices eases future industrial scale fabric…
Electrical manipulation of a single electron spin in CMOS with micromagnet and spin-valley coupling
Bernhard Klemt, Victor El-Homsy, Martin Nurizzo +16
For semiconductor spin qubits, complementary-metal-oxide-semiconductor (CMOS) technology is the ideal candidate for reliable and scalable fabrication. Making the direct leap from a…
Tunable Capacitor For Superconducting Qubits Using an InAs/InGaAs Heterostructure
Nicholas Materise, Matthieu C. Dartiailh, William M. Strickland +2
Adoption of fast, parametric coupling elements has improved the performance of superconducting qubits, enabling recent demonstrations of quantum advantage in randomized sampling pr…
Complete readout of two-electron spin states in a double quantum dot
Martin Nurizzo, Baptiste Jadot, Pierre-André Mortemousque +9
We propose and demonstrate complete spin state readout of a two-electron system in a double quantum dot probed by an electrometer. The protocol is based on repetitive single shot m…
Parity and singlet-triplet high fidelity readout in a silicon double quantum dot at 0.5 K
David J. Niegemann, Victor El-Homsy, Baptiste Jadot +14
We demonstrate singlet-triplet readout and parity readout allowing to distinguish T0 and the polarized triplet states. We achieve high fidelity spin readout with an average fidelit…
Controlled quantum dot array segmentation via a highly tunable interdot tunnel coupling
Martin Nurizzo, Baptiste Jadot, Pierre-André Mortemousque +8
Recent demonstrations using electron spins stored in quantum dots array as qubits are promising for developing a scalable quantum computing platform. An ongoing effort is therefore…
Local Control of Supercurrent Density in Epitaxial Planar Josephson Junctions
Bassel H. Elfeky, Neda Lotfizadeh, William F. Schiela +9
The critical current response to an applied out-of-plane magnetic field in a Josephson junction provides insight into the uniformity of its current distribution. In Josephson junct…
Staggered spin-orbit interaction in a nanoscale device
L. C. Contamin, T. Cubaynes, W. Legrand +9
The coupling of the spin and the motion of charge carriers stems directly from the atomic structure of a conductor. It has become an important ingredient for the emergence of topol…
Epitaxial Superconductor-Semiconductor Two-Dimensional Systems for Superconducting Quantum Circuits
Joseph O'Connell Yuan, Kaushini S. Wickramasinghe, William M. Strickland +4
Qubits on solid state devices could potentially provide the rapid control necessary for developing scalable quantum information processors. Materials innovation and design breakthr…
Investigating the Exchange of Ising Chains on a Digital Quantum Computer
Bassel Heiba Elfeky, Matthieu C. Dartiailh, S. M. Farzaneh +1
The ferromagnetic state of an Ising chain can represent a two-fold degenerate subspace or equivalently a logical qubit which is protected from excitations by an energy gap. We stud…
Fusion of Majorana Bound States with Mini-Gate Control in Two-Dimensional Systems
Tong Zhou, Matthieu C. Dartiailh, Kasra Sardashti +4
A hallmark of topological superconductivity is the non-Abelian statistics of Majorana bound states (MBS), its chargeless zero-energy emergent quasiparticles. The resulting fraction…
Majorana braiding gates for topological superconductors in a one dimensional geometry
Marek Narozniak, Matthieu Dartiailh, Jonathan P. Dowling +2
We propose and analyze a physical system capable of performing topological quantum computation with Majorana zero modes (MZM) in a one-dimensional topological superconductor (1DTS)…
Observation of Distinct Superconducting Phases in Hyperdoped p-type Germanium
Kasra Sardashti, Tri D. Nguyen, Wendy L. Sarney +6
Realization of superconductivity in Group IV semiconductors could have a strong impact in the direction quantum technologies will take in the future. Therefore, it is imperative to…
Nanoassembly technique of carbon nanotubes for hybrid circuit-QED
T. Cubaynes, L. C. Contamin, M. C. Dartiailh +4
A complex quantum dot circuit based on a clean and suspended carbon nanotube embedded in a circuit quantum electrodynamique (cQED) architecture is a very attractive platform to inv…
Tuning supercurrent in Josephson field effect transistors using h-BN dielectric
Fatemeh Barati, Josh P. Thompson, Matthieu C. Dartiailh +8
The transparent interface in epitaxial Al-InAs heterostructures provides an excellent platform for potential advances in mesoscopic and topological superconductivity. Semiconductor…
Voltage-tunable superconducting resonators: a platform for random access quantum memory
Kasra Sardashti, Matthieu C. Dartiailh, Joseph Yuan +3
In quantum computing architectures, one important factor is the trade-off between the need to couple qubits to each other and to an external drive and the need to isolate them well…
Missing Shapiro steps in topologically trivial Josephson Junction on InAs quantum well
Matthieu C. Dartiailh, Joseph J. Cuozzo, William Mayer +4
Josephson junctions hosting Majorana fermions have been predicted to exhibit a 4 periodic current phase relation. The experimental consequence of this periodicity is the disappe…
Experimental Measurements of Effective Mass in Near Surface InAs Quantum Wells
Joseph Yuan, Mehdi Hatefipour, Brenden A. Magill +11
Near surface indium arsenide quantum wells have recently attracted a great deal of interest since they can be interfaced epitaxially with superconducting films and have proven to b…
Superconducting proximity effect in InAsSb surface quantum wells with in-situ Al contact
William Mayer, William F. Schiela, Joseph Yuan +9
We demonstrate robust superconducting proximity effect in InAsSb quantum wells grown with epitaxial Al contact, which has important implications for mesoscopic and…
Phase Control of Majorana Bound States in a Topological X Junction
Tong Zhou, Matthieu C. Dartiailh, William Mayer +4
Topological superconductivity supports exotic Majorana bound states (MBS) which are chargeless zero-energy emergent quasiparticles. With their non-Abelian exchange statistics and f…
Phase signature of topological transition in Josephson Junctions
Matthieu C. Dartiailh, William Mayer, Joseph Yuan +4
Topological superconductivity holds promise for fault-tolerant quantum computing. While planar Josephson junctions are attractive candidates to realize this exotic state, direct ph…