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20132026
most citedExperimental loophole-free violation of a Bell inequality using entangled electron spins separated by 1.3 km

2.8k citations

Showing 2019 · cond-mat.mes-hallShow all

33 papers · 2 filters

cond-mat.mes-hall2019★ 186 cited

A single-hole spin qubit

N. W. Hendrickx, W. I. L. Lawrie, L. Petit +3

Qubits based on quantum dots have excellent prospects for scalable quantum technology due to their inherent compatibility with standard semiconductor manufacturing. While early on…

cond-mat.mes-hall2019★ 19 cited

All-Electrical Control of an Electron Spin/Valley Quantum Bit in SOI CMOS Technology

Léo Bourdet, Louis Hutin, Benoit Bertrand +14

We fabricated Quantum Dot (QD) devices using a standard SOI CMOS process flow, and demonstrated that the spin of confined electrons could be controlled via a local electrical-field…

cond-mat.mes-hall2019★ 56 cited

Observation of vanishing charge dispersion of a nearly-open superconducting island

Arno Bargerbos, Willemijn Uilhoorn, Chung-Kai Yang +5

Isolation from the environment determines the extent to which charge is confined on an island, which manifests as Coulomb oscillations such as charge dispersion. We investigate the…

cond-mat.mes-hall2019★ 20 cited

Stable quantum dots in an InSb two-dimensional electron gas

Ivan Kulesh, Chung Ting Ke, Candice Thomas +7

Indium antimonide (InSb) two-dimensional electron gases (2DEGs) have a unique combination of material properties: high electron mobility, strong spin-orbit interaction, large Landé…

cond-mat.mes-hall2019★ 331 cited

Universal quantum logic in hot silicon qubits

L. Petit, H. G. J. Eenink, M. Russ +5

Quantum computation requires many qubits that can be coherently controlled and coupled to each other. Qubits that are defined using lithographic techniques are often argued to be p…

cond-mat.mes-hall2019★ 146 cited

Quantum Dot Arrays in Silicon and Germanium

W. I. L. Lawrie, H. G. J. Eenink, N. W. Hendrickx +15

Electrons and holes confined in quantum dots define an excellent building block for quantum emergence, simulation, and computation. In order for quantum electronics to become pract…

cond-mat.mes-hall2019★ 37 cited

Multiple Andreev reflections and Shapiro steps in a Ge-Si nanowire Josephson junction

Joost Ridderbos, Matthias Brauns, Ang Li +4

We present a Josephson junction based on a Ge-Si core-shell nanowire with transparent superconducting Al contacts, a building block which could be of considerable interest for inve…

cond-mat.mes-hall2019★ 89 cited

Continuous monitoring of a trapped, superconducting spin

M. Hays, V. Fatemi, K. Serniak +7

Readout and control of fermionic spins in solid-state systems are key primitives of quantum information processing and microscopic magnetic sensing. The highly localized nature of…

cond-mat.mes-hall2019★ 17 cited

Interplay between boundary conditions and Wilson's mass in Dirac-like Hamiltonians

A. L. Araújo, R. P. Maciel, R. G. F. Dornelas +2

Dirac-like Hamiltonians, linear in momentum , describe the low-energy physics of a large set of novel materials, including graphene, topological insulators, and Weyl fermions. W…

cond-mat.mes-hall2019★ 48 cited

Multiplexed quantum transport using commercial off-the-shelf CMOS at sub-kelvin temperatures

B. Paquelet Wuetz, P. L. Bavdaz, L. A. Yeoh +10

Continuing advancements in quantum information processing have caused a paradigm shift from research mainly focused on testing the reality of quantum mechanics to engineering qubit…

cond-mat.mes-hall2019★ 40 cited

Tunable coupling and isolation of single electrons in silicon metal-oxide-semiconductor quantum dots

H. G. J. Eenink, L. Petit, W. I. L. Lawrie +3

Extremely long coherence times, excellent single-qubit gate fidelities and two-qubit logic have been demonstrated with silicon metal-oxide-semiconductor spin qubits, making it one…

cond-mat.mes-hall2019★ 32 cited

Hard superconducting gap and diffusion-induced superconductors in Ge-Si nanowires

Joost Ridderbos, Matthias Brauns, Jie Shen +8

We show a hard induced superconducting gap in a Ge-Si nanowire Josephson transistor up to in-plane magnetic fields of mT, an important step towards creating and detecting Maj…

cond-mat.mes-hall2019★ 30 cited

Crossed Andreev Reflection in InSb Flake Josephson Junctions

Folkert K. de Vries, Martijn L. Sol, Sasa Gazibegovic +6

We study superconducting quantum interference in InSb flake Josephson junctions. An even-odd effect in the amplitude and periodicity of the superconducting quantum interference pat…

cond-mat.mes-hall2019★ 35 cited

Spatial Noise Correlations in a Si/SiGe Two-Qubit Device from Bell State Coherences

Jelmer M. Boter, Xiao Xue, Tobias S. Krähenmann +10

We study spatial noise correlations in a Si/SiGe two-qubit device with integrated micromagnets. Our method relies on the concept of decoherence-free subspaces, whereby we measure t…

cond-mat.mes-hall2019★ 77 cited

Light effective hole mass in undoped Ge/SiGe quantum wells

M. Lodari, A. Tosato, D. Sabbagh +5

We report density-dependent effective hole mass measurements in undoped germanium quantum wells. We are able to span a large range of densities ( cm) in…

cond-mat.mes-hall2019★ 148 cited

Topological phases without crystalline counterparts

Daniel Varjas, Alexander Lau, Kim Pöyhönen +3

Recent years saw the complete classification of topological band structures, revealing an abundance of topological crystalline insulators. Here we theoretically demonstrate the exi…

cond-mat.mes-hall2019★ 184 cited

Next steps of quantum transport in Majorana nanowire devices

Hao Zhang, Dong E. Liu, Michael Wimmer +1

Majorana zero modes are localized quasiparticles that obey non-Abelian exchange statistics. Braiding Majorana zero modes forms the basis of topologically protected quantum operatio…

cond-mat.mes-hall2019★ 49 cited

Computation of topological phase diagram of disordered PbSnTe using the kernel polynomial method

Daniel Varjas, Michel Fruchart, Anton R. Akhmerov +1

We present an algorithm to determine topological invariants of inhomogeneous systems, such as alloys, disordered crystals, or amorphous systems. Based on the kernel polynomial meth…

cond-mat.mes-hall2019★ 2 cited

Engineering tunnel junctions on ballistic semiconductor nanowires

J. Damasco, S. T. Gill, S. Gazibegovic +3

Typical measurements of nanowire devices rely on end-to-end measurements to reveal mesoscopic phenomena such as quantized conductance or Coulomb blockade. However, creating nanosca…

cond-mat.mes-hall2019★ 282 cited

Fast two-qubit logic with holes in germanium

N. W. Hendrickx, D. P. Franke, A. Sammak +2

The promise of quantum computation with quantum dots has stimulated widespread research. Still, a platform that can combine excellent control with fast and high-fidelity operation…

cond-mat.mes-hall2019★ 119 cited

Nagaoka ferromagnetism observed in a quantum dot plaquette

Juan P. Dehollain, Uditendu Mukhopadhyay, Vincent P. Michal +7

Engineered, highly-controllable quantum systems hold promise as simulators of emergent physics beyond the capabilities of classical computers. An important problem in many-body phy…

cond-mat.mes-hall2019★ 111 cited

Optically coherent nitrogen-vacancy centers in μm-thin etched diamond membranes

Maximilian Ruf, Mark IJspeert, Suzanne van Dam +4

Diamond membrane devices containing optically coherent nitrogen-vacancy (NV) centers are key to enable novel cryogenic experiments such as optical ground-state cooling of hybrid sp…

cond-mat.mes-hall2019★ 59 cited

Enhanced proximity effect in zigzag-shaped Majorana Josephson junctions

Tom Laeven, Bas Nijholt, Michael Wimmer +1

High density superconductor-semiconductor-superconductor junctions have a small induced superconducting gap due to the quasiparticle trajectories with a large momentum parallel to…

cond-mat.mes-hall2019★ 21 cited

Revealing charge-tunneling processes between a quantum dot and a superconducting island through gate sensing

Jasper van Veen, Damaz de Jong, Lin Han +5

We report direct detection of charge-tunneling between a quantum dot and a superconducting island through radio-frequency gate sensing. We are able to resolve spin-dependent quasip…