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Publications

2022

Probing resonating valence bonds on a programmable germanium quantum simulator
C.A. Wang, C. Déprez, H. Tidjani, W.I.L. Lawrie, N.W. Hendrickx, A. Sammak, G. Scappucci, M. Veldhorst
arXiv:2208.11505 (2022)

Modelling of planar germanium hole qubits in electric and magnetic fields
C.A. Wang, G. Scappucci, M. Veldhorst, M. Russ
arXiv:2208.04795 (2022)

A high-mobility hole bilayer in a germanium double quantum well
A. Tosato, B.M. Ferrari, A. Sammak, A.R. Hamilton, M. Veldhorst, M. Virgilio, G. Scappucci
Advanced Quantum Technologies 5 (5), 2100167 (2022)

Spider-web array: A sparse spin-qubit array
J.M. Boter, J.P. Dehollain, J.P.G. van Dijk, Y. Xu, T. Hensgens, R. Versluis, H.W.L. Naus, J.S. Clarke, M. Veldhorst, F. Sebastiano, L.M.K. Vandersypen
Phys. Rev. Applied 18, 024053 (2022)

A quantum dot crossbar with sublinear scaling of interconnects at cryogenic temperature
P.L. Bavdaz, H.G.J. Eenink, J. van Staveren, M. Lodari, C.G. Almudever, J.S. Clarke, F. Sebastiano, M. Veldhorst, G. Scappucci
npj Quantum Information, 8, 86 (2022)

Hard superconducting gap in a high-mobility semiconductor
A. Tosato, V. Levajac, J.Y. Wang, C.J. Boor, F. Borsoi, M. Botifoll, C.N. Borja, S. Marti-Sanchez, J. Arbiol, A. Sammak, M. Veldhorst, G. Scappucci
arXiv:2206.00569 (2022)

Front cover: A high-mobility hole bilayer in a Germanium double quantum well
A. Tosato, B. Ferrari, A. Sammak, A.R. Hamilton, M. Veldhorst, M. Virgilio, G. Scappucci
Advanced Quantum Technologies, 5, 5, 2270051 (2022)

Front cover: A high-mobility hole bilayer in a Germanium double quantum well
A. Tosato, B. Ferrari, A. Sammak, A.R. Hamilton, M. Veldhorst, M. Virgilio, G. Scappucci
Advanced Quantum Technologies, 5, 5, 2100167 (2022)

Lightly strained germanium quantum wells with hole mobility exceeding one million
M. Lodari, O. Kong, M. Rendell, A. Tosato, A. Sammak, M. Veldhorst, A.R. Hamilton, G. Scappucci
Applied Physics Letters, 120, 122104 (2022)

Qubits made by advanced semiconductor manufacturing
A.M.J. Zwerver, T. Krähenmann, T.F. Watson, L. Lampert, H.C. George, R. Pillarisetty, S.A. Bojarski, P. Amin, S.V. Amitonov, J.M. Boter, R. Caudillo, D. Correas-Serrano, J.P. Dehollain, G. Droulers, E.M. Henry, R. Kotlyar, M. Lodari, F. Lüthi, D.J. Michalak, B.K. Mueller, S. Neyens, J. Roberts, N. Samkharadze, G. Zheng, O.K. Zietz, G. Scappucci, M. Veldhorst, L.M.K. Vandersypen, J.S. Clarke
Nature Electronics, 5, 184-190 (2022)

Phase flip code with semiconductor spin qubits
F. van Riggelen, W.I.L. Lawrie, M. Russ, N.W. Hendrickx, A. Sammak, M. Rispler, B.M. Terhal, G. Scappucci, M. Veldhorst
arXiv: 2202.11530 (2022)

Universal control of a six-qubit quantum processor in silicon
S.G.J. Philips, M.T. Madzik, S.V. Amitonov, S.L. de Snoo, M. Russ, N. Kalhor, C. Volk. W.I.L. Lawrie, D. Brousse, L. Tryputen, B. Paquelet Wuetz, A. Sammak, M. Veldhorst, G. Scappucci, L.M.K. Vandersypen
arXiv: 2202.09252 (2022)

Quantum logic with spin qubits crossing the surface code threshold
A. Tosato, B. Ferrari, A. Sammak, A.R. Hamilton, M. Veldhorst, M. Virgillio, G. Scappucci
Advanced Quantum Technology (2022)

2021

A four-qubit germanium quantum processor
W. Hendrickx, W.I.L. Lawrie, M. Russ, F. van Riggelen, S.L. de Snoo, R.N. Schouten, A. Sammak, G. Scappucci, M. Veldhorst
Nature 591, 580-585 (2021)

Electrical control of the g tensor of the first hole in a silicon MOS quantum dot
S.D. Liles, F. Martins, D.S. Miserev, A.A. Kiselev, I.D. Thorvaldson, M.J. Rendell, I.K. Jin, F.E. Hudson, M. Veldhorst, K.M. Itoh, O.P. Sushkov, T.D. Ladd, A.S. Dzurak, A.R. Hamilton
Physical Review B, 104, 235303 (2021)


The germanium quantum information route
G. Scappucci, C. Kloeffel, F.A. Zwanenburg, D. Loss, M. Myronov, J.-J. Zhang, S. De Franceschi, G. Katsaros, M. Veldhorst
Nature Reviews Materials, 6, 926-943 (2021)


Simultaneous driving of semiconductor spin qubits at the fault-tolerant threshold
W.I.L. Lawrie, M. Russ, F. van Riggelen, N.W. Hendrickx, S.L. de Snoo, A. Sammak, G. Scappucci, M. Veldhorst
arXiv: 2109.07837 (2021)


Single-hole pump in germanium
A. Rossi, N.W. Hendrickx, A. Sammak, M. Veldhorst, G. Scappucci, M. Kataoka
Journal of Physics D: Applied Physics, 54, 434001 (2021)


A array of four germanium qubits
N.W. Hendrickx, M. Veldhorst
Nature, https://doi.org/10.1038/s41586-021-03332-6 (2021)

CMOS-based cyrogenic control of silicon quantum circuits
X. Xue, B. Patra, J.P.G. van Dijk, N. Samkharadze, S. Subramanian, A. Corna, B. Paquelet Wuetz, C. Jeon, F. Sheikh, E. Juarez-Hernandez, B. Perez Esparza, H. Rampurawala, B. Carlton, S. Ravikumar, C. Nieva, S. Kim, H.-J. Lee, A. Sammak, G. Scappucci, M. Veldhorst, F. Sebastiano, M. Babaie, S. Pellerano, E. Charbon, L.M.K. Vandersypen
Nature 593, 205-210 (2021)

Enhancement of proximity-induced superconductivity in a planar Ge hole gas
K. Aggarwal, A. Hofmann, D. Jirovec, I. Prieto, A. Sammak, M. Botifoll, S. Marti-Sanchez, M. Veldhorst, J. Arbiol, G. Scappucci, J. Danon, G. Katsaros
Physical Review Research 3, L022005 (2021)

Low percolation density and charge noise with holes in germanium
M. Lodari, N.W. Hendrickx, W.I.L. Lawrie, Tzu-Kan Hsiao, L.M.K. Vandersypen, A. Sammak, M. Veldhorst, G. Scappucci
IOP Science, Materials for Quantum Technology 1, 011002 (2021)

A two-dimensional array of single-hole quantum dots
F. van Riggelen, N.W. Hendrickx, W.I.L. Lawrie, M. Russ, A. Sammak, G. Scappucci, M. Veldhorst
Applied Physics Letters 118, 4, 044002 (2021)

Exchange coupling in a linear chain of three quantum-dot spin qubits in silicon
K. Wai Chan, H. Sahasrabudhe, W. Huang. Y. Wang, H.C. Yang, M. Veldhorst, J.CC. Hwang, F.A. Mohiyaddin, F.E. Hudson, K.M. Itho, A. Saraiva, A. Morello, A. Laucht, R. Rahman, A.S. Dzurak
Nano Letters 21, 3, 1571-1522 (2021)

2020

The germanium quantum information route
G. Scappucci, C. Kloeffel, F.A. Zwanenburg, D. Loss, M. Myronov, J.J. Zhang, S. De Franceschi, G. Katsaros, M. Veldhorst
Nature Reviews Materials, 6, 926-943 (2020)

A Scalable Cryo-CMOS Controller for the Wideband Frequency-Multiplexed Control of Spin Qubits and Transmons
P.G. Van Dijk, B. Patra, S. Subramanian, X. Xue, N. Samkharadze, A. Corna, C. Jeon, F. Sheikh, E.J. Hernandez, B.P. Esparza, H. Rampurawala, B.R. Carlton, S. Ravikumar, C. Nieva, S. Kim, H.J. Lee, A. Sammak, G. Scappucci, M. Veldhorst, L.M.K. Vandersypen, E. Charbon, S. Pellerano, M. Babaie, F. Sebastiano
IEEE Journal of Solid-State Circuits, 55, 11, 2930-2946, (2020)

A single-hole spin qubit
N.W. Hendrickx, W.I.L. Lawrie, L. Petit, A. Sammak, G. Scappucci, M. Veldhorst
Nature Communications (2020)

Effect of quantum Hall edge strips on valley splitting in silicon quantum wells
B. Paquelet Wuetz, M.P. Losert, A. Tosato, M. Lodari, P.L. Bavdaz, L. Stehouwer, P. Amin, J.S. Clarke, S.N. Coppersmith, A. Sammak, M. Veldhorst, M. Friesen, G. Scappucci
Physical Review Letters 125, 186801 (2020)

On-chip integration of Si/SiGe-based quantum dots and switched-capacitor circuits
Y. Xu, F.K. Unseld, A. Corna, A.M.J. Zwerver, A. Sammak, D. Brousse, N. Samkharadze, S.V. Amitonov, M. Veldhorst, G. Scappucci, R. Ishihara, L.M.K. Vandersypen
Applied Physics Letters 117, 144002 (2020)

Spin relaxation benchmarks and individual qubit addressability for holes in quantum dots
W.I.L. Lawrie, N.W. Hendrickx, F. van Riggelen, M. Russ, L. Petit, A. Sammak, GT. Scappucci, M. Veldhorst
Nano Letters 20, 10,7237-7242 (2020)

High-fidelity two-qubit gates in silicon above one Kelvin
L. Petit, M. Russ, H.G.J. Eenink, W.I.L. Lawrie, J.S. Clarke, L.M.K. Vandersypen, M. Veldhorst
arXiv: 2007.09034 (2020)

Multiplexed quantum transport using commercial off-the-shelf CMOS at sub-kelvin temperatures
B. Paquelet Wuetz, P.L. Bavdaz, L.A. Yeoh, R. Schouten, H. van der Does, M. Tiggelman, D. Sabbagh, A. Sammak, C.G. Almudever, F. Sebastiano, J.S. Clarke, M. Veldhorst, G. Scappucci
npj Quantum Information, 6, 43 (2020)

Universal quantum logic in hot silicon qubits
L. Petit, H.G.J. Eenink, M. Russ. W.I.L. Lawrie, N.W. Hendrickx, S.G.J. Philips, J.S. Clarke, L.M.K. Vandersypen, M. Veldhorst
Nature, 580, 355-359 (2020)

Quantum Inspire: QuTech’s platform for co-development and collaboration in quantum computing
T. Last, N. Samkharadze, P. Eendebak, R. Versluis, X. Xue, A. Sammak, D. Brousse, K. Loh, H. Polinder, G. Scappucci, M. Veldhorst, L. Vandersypen, K. Maturová, J. Veltin, G. Alberts
SPIE, 11324, 49-59 (2020)

Quantum dot arrays in silicon and germanium
W. Lawrie, H.G.J. Eenink, N.W. Hendrickx, J.M. Boter, L. Petit, S.V. Amitonov, M. Lodari, B. Paquelet Wuetz, C. Volk, S.G.J. Philips, G. Droulers, N. Kalhor, F. van Riggelen, D. Brousse, A. Sammak, L.M.K. Vandersypen, G. Scappucci, M. Veldhorst
Applied Physics Letters, 116, 080501 (2020)

Enhancement of proximity induced superconductivity in planar Germanium
K. Aggarwal, A.C. Hofmann, D. Jirovec, I.P. Gonzalez, A. Sammak, M. Botifoll, S. Marti-Sanchez, M. Veldhorst, J. Arbiol, G. Scappucci, G. Katsaros
arXiv: https://arxiv.org/abs/2012.00322

Fast two-qubit logic with holes in germanium
N.W. Hendrickx, D.P. Franke, A. Sammak, G. Scappucci, M. Veldhorst
Nature 577, 487-491 (2020)

2019

A sparse spin qubit array with integrated control electronics
J.M. Boter, J.P. Dehollain, J.P.G. van Dijk, T. Hensgens, R. Versluis, J.S. Clarke, M. Veldhorst, F. Sebastiano, L.M.K. Vandersypen
IEEE International Electron Devices Meeting (IEDM) (2019)

Ballistic supercurrent discretization and micrometer-long Josephson coupling in germanium
N.W. Hendrickx, M.L.V. Tagliaferri, M. Kouwenhoven, R. Li, D.P. Franke, A. Sammak, A. Brinkman, G. Scappucci, M. Veldhorst
Physical Review B 99, 075435 (2019)

Tunable Coupling and Isolation of Single Electrons in Silicon Metal-Oxide-Semiconductor Quantum Dots
H.G.J. Eenink, L. Petit, W.I.L. Lawrie, J.S. Clarke, L.M.K. Vandersypen, M. Veldhorst
Nano Letters, 19, 12, 8653-8657 (2019)

2018

Rent’s rule and extensibility in quantum computing
D.P. Franke, J.S. Clarke, L.M.K. Vandersypen, M.Veldhorst
journal: https://www.sciencedirect.com/science/article/pii/S014193311830293X?via%3Dihub
arxiv: 1806.02145

The impact of classical control electronics on qubit fidelity
J.P.G. van Dijk, E. Kawakami, R.N. Schouten, M. Veldhorst, L.M.K. vandersypen, M. Babaie, E. Charbon, F. Sebastiano
journal: https://journals.aps.org/prapplied/abstract/10.1103/PhysRevApplied.12.044054
arxiv: 1803.06176

Impact of valley phase and splitting on readout of silicon spin qubits
L.V. Tagliaferri, P.L. Bavdaz, W. Huang, A.S. Dzurak, D. Culcer, M. Veldhorst
journal: Phys Review B 97,245412 (2018)

Spin lifetime and charge noise in hot silicon quantum dot qubits
L. Petit, J.M. Boter, H.G.J. Eenink, G. Droulers, M.L.V. Tagliaferri, R. Li, D.P. Franke, K.J. Singh,J.S. Clarke, R.N. Schouten, V.V. Dobrovitski, L.M.K. Vandersypen, M. Veldhorst
journal: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.121.076801
arXiv:1803.01774

Gate-controlled quantum dots and superconductivity in planar germanium
N.W. Hendrickx, D.P. Franke, A. Sammak, M. Kouwenhoven, D. Sabbagh, L. Yeoh, R. Li, M.L.V. Tagliaferri, M. Virgilio, G. Capellini, G. Scappucci, M. Veldhorst
Nature Communications 9, 2835 (2018)
journal: https://www.nature.com/articles/s41467-018-05299-x
arXiv:1801.08869

Spin filling and orbital structure of the first six holes in a silicon metal-oxide-semiconductor quantum dot
S. D. Liles, R. Li, C. H. Yang, F. E. Hudson, M. Veldhorst, A. S. Dzurak, A. R. Hamilton
journal: https://www.nature.com/articles/s41467-018-05700-9
arXiv:1801.04494

2017

Quantum error correction in crossbar architectures
J. Helsen, M. Steudtner, M. Veldhorst, S. Wehner
journal: https://iopscience.iop.org/article/10.1088/2058-9565/aab8b0
arXiv:1712.07571

A crossbar network for silicon quantum dot qubits
R. Li, L. Petit, D.P. Franke, J.P. Dehollain, J. Helsen, M. Steudtner, N.K. Thomas, Z.R. Yoscovits, K.J. Singh, S. Wehner, L.M.K. Vandersypen, J.S. Clarke, M. Veldhorst
journal: https://www.science.org/doi/10.1126/sciadv.aar3960
arXiv:1711.03807

Electron g-factor of valley states in realistic silicon quantum dots
R. Ruskov, M. Veldhorst, A.S. Dzurak, C. Tahan
journal: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.98.245424
arXiv:1708.04555

A programmable two-qubit quantum processor in silicon
T.F. Watson, S.G.J. Philips, E. Kawakami, D.R. Ward, P. Scarlino, M. Veldhorst, D.E. Savage, M.G. Lagally, M. Friesen, S.N. Coppersmith, M.A. Eriksson, and L.M.K. Vandersypen
journal: https://www.nature.com/articles/nature25766
arXiv:1708.04214

Integrated silicon qubit platform with single-spin addressability, exchange control and robust single-shot singlet-triplet readout
M.A. Fogarty, K.W. Chan, B. Hensen, W. Huang, T. Tanttu, C.H. Yang, A. Laucht, M. Veldhorst, F.E. Hudson, K.M. Itoh, D. Culcer, A. Morello, and A.S. Dzurak
journal: https://www.nature.com/articles/s41467-018-06039-x
arXiv:1708.03445

Interface induced spin-orbit interaction in silicon quantum dots and prospects for scalability
R. Ferdous, K.W. Chan, M. Veldhorst, J.C.C. Hwang, C.H. Yang, G. Klimeck, A. Morello, A.S. Dzurak, R. Rahman
journal: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.97.241401
arXiv:1703.03840

Silicon CMOS architecture for a spin-based quantum computer
M. Veldhorst, H.G.J. Eenink, C.H. Yang, and A.S. Dzurak
journal: Nature Communications 8, 1766 (2017)

Interfacing spin qubits in quantum dots and donors – hot, dense and coherent
L.M.K. Vandersypen, H. Bluhm, J.S. Clarke, A.S. Dzurak, R. Ishihara, A. Morello, D.J. Reilly, L.R. Schreiber and M. Veldhorst
journal: Quantum Information 3, 34 (2017)

Impact of g-factors and valleys on spin qubits in a silicon double quantum dot
J.C.C. Hwang, C.H. Yang, M. Veldhorst, N. Hendrickx, M.A. Fogarty, W. Huang, F.E. Hudson, A. Morello, and A.S. Dzurak
journal: Physical Review B 96, 045302 (2017).

An electrically driven spin qubit based on valley mixing
W. Huang, M. Veldhorst, N.M. Zimmerman, A.S. Dzurak, and D. Culcer
journal: Physical Review B 95, 075403 (2017)

2015

Spin-orbit coupling and operation of multivalley spin qubits
Veldhorst, R. Ruskov, C.H. Yang, J.C.C. Hwang, F.E. Hudson, M.E. Flatté, C. Tahan, K.M. Itoh, A. Morello, and A.S. Dzurak
journal: Physical Review B 92, 201401 (R) 2015

Multiple Fermi pockets revealed by Shubnikov-de Haas oscillations in WTe2
F.X. Xiang, M. Veldhorst, S.X. Dou, X.L. Wang
journal: European Physics Letters 112, 3 (2015)

A two-qubit logic gate in silicon
Veldhorst, C.H. Yang, J.C.C. Hwang, W. Huang, J.P. Dehollain, J.T. Muhonen, S. Simmons, A. Laucht, F.E. Hudson, K.M. Itoh, A. Morello, and A.S. Dzurak
Nature 526, 410-414 (2015)
Nature Photonics research highlights
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Non-exponential fidelity decay in randomized benchmarking with low-frequency
M.A. Fogarty, M. Veldhorst, R. Harper, C.H. Yang, S.D. Bartlett, S.T. Flammia, and A.S. Dzurak
journal: Physical Review A 92, 022326 (2015)

Observation of a topological transition of the Fermi surface from a spindle-torus to a torus in large bulk Rashba spin-split BiTeCl
F.X. Xiang, X.-L. Wang, M. Veldhorst, S.X. Dou, and M.S. Fuhrer
journal: Physical Review B 92, 035123 (2015)

Many-particle Majorana modes: derivation and current-phase relation in superconducting double quantum dots
T.E. O’Brien, A.R. Wright, and M. Veldhorst
journal: Physica Status Solidi B 252, 1731-1742 (2015)

Electrically controlling single spin qubits in a continuous microwave field
Laucht, J.T. Muhonen, F.A. Mohiyaddin, R. Kalra, J.P. Dehollain, S. Freer, F.E. Hudson, M. Veldhorst, R. Rahman, G. Klimeck, K.M. Itoh, D.N. Jamieson, J.C. McCallum, A.S. Dzurak, and A. Morello
journal: Science Advances 1, 3 (2015)

Een silicium quantum computer
Veldhorst, A. Morello, and A.S. Dzurak
Nederlands Tijdschrift voor de Natuurkunde 81, 3 (maart 2015)

An addressable quantum dot qubit with fault-tolerant fidelity
Veldhorst, J.C.C. Hwang, C.H. Yang, A.W. Leenstra, B. de Ronde, J.P. Dehollain, J.T. Muhonen, F.E. Hudson, K.M. Itoh, A. Morello, and A.S. Dzurak
Nature Nanotechnology 9, 981-985 (2014)
Nature Nanotechnology News and views: Quantum computation: Silicon comes back
Nature Nanotechnology Front cover
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2014

Nonlocal spin-entangled Andreev reflection, fractional charge, and current-phase relations in topological bilayer-exciton-condensate junctions
Veldhorst, M. Hoek, M. Snelder, H. Hilgenkamp, A.A. Golubov, and A. Brinkman,
journal: Physical Review B 90, 035428 (2014)

2013

Localized many particle Majorana fermions with vanishing time reversal symmetry breaking in double quantum dots
A.R. Wright and M. Veldhorst
journal: Physical Review Letters 111, 096801 (2013)

Andreev bound states and current-phase relations in three dimensional topological insulators
Snelder, M. Veldhorst, A.A. Golubov, and A. Brinkman
journal: Physical Review B 87, 104507 (2013)

Magnetotransport and induced superconductivity in Bi based three-dimensional topological insulators
Veldhorst, M. Snelder, M. Hoek, C.G. Molenaar, D.P. Leusink, A.A. Golubov, H. Hilgenkamp, and A. Brinkman
journal: Physica Status Solidi RRL 70, 162 (2013)

2012

Superconducting and topological hybrids
Veldhorst
journal: PhD-thesis, ISBN 978-90-365-3412-3 (2012)

Optimizing the Majorana character of SQUIDs with topologically non-trivial barriers
Veldhorst, C.G. Molenaar, C.J.M. Verwijs, H. Hilgenkamp, and A. Brinkman
journal: Physical Review B 86, 024509 (2012)

Experimental realization of SQUIDs with topological insulator junctions
Veldhorst, C.G. Molenaar, X.L. Wang, H. Hilgenkamp, and A. Brinkman
journal: Applied Physics Letters 100, 072602 (2012)

Josephson supercurrent through a topological insulator surface state
Veldhorst, M. Snelder, M. Hoek, T. Gang, X.L. Wang, V.K. Guduru, U. Zeitler, W.G. v.d. Wiel, A.A. Golubov, H. Hilgenkamp, and A. Brinkman
journal: Nature Materials 11, 417-421 (2012)

Long range supercurrents in ferromagnetic CrO2 using a multilayer contact structure
M.S. Anwar, M. Veldhorst, A. Brinkman, and J. Aarts
journal: Applied Physics Letters 100, 052602 (2012)

2010

Nonlocal Cooper pair splitting in a pSn junction
Veldhorst, and A. Brinkman
journal: Physical Review Letters 105, 107002 (2010)

2009

Magnetization-induced resistance switching effects in LaSrMnO/YBCO bi- and trilayers
van Zalk, M. Veldhorst, A. Brinkman, J. Aarts, and H. Hilgenkamp
journal: Physical Review B 79, 134509 (2009)

2008

Properties of MgB2 films grown at various temperatures by hybrid physical-chemical vapour deposition
Chen, M. Veldhorst, C.H. Lee, D.R. Lamborn, R. DeFrain, J.M. Redwing, Q. Li, and X.X.Xi
journal: Superconductor Science and Technology 21, 095015 (2008)