Ville Bergholm

Research Scientist

ISI Foundation
Via Alassio 11/c
10126 Torino, Italy

[email protected]

Short Biography
Research Scientist at ISI Foundation
Postdoctoral Researcher at Technische Universität München
Postdoctoral Researcher at Aalto University
Postdoctoral Fellow at Harvard University
D.Sc. from Helsinki University of Technology.

Research Interests
My research interests include quantum information, tensor networks, simulating and controlling quantum systems, complex networks theory, and developing scientific software.

Publications
Chiral Quantum Walks,
DaWei Lu, Jacob D. Biamonte, Jun Li, Hang Li, Tomi H. Johnson, Ville Bergholm, Mauro Faccin, Zoltán Zimborás, Raymond Laflamme, Jonathan Baugh, and Seth Lloyd,
arXiv:1405.6209 (2014).
Quantum Simulation of Helium Hydride in a Solid-State Spin Register,
Ya Wang, Florian Dolde, Jacob Biamonte, Ryan Babbush, Ville Bergholm, Sen Yang, Ingmar Jakobi, Philipp Neumann, Alán Aspuru-Guzik, James D. Whitfield, and Jörg Wrachtrup,
arXiv:1405.2696 (2014).
Community Detection in Quantum Complex Networks,
Mauro Faccin, Piotr Migdał, Tomi Johnson, Ville Bergholm, and Jacob Biamonte,
Phys. Rev. X 4, 041012 (2014), arXiv:1310.6638.
High fidelity spin entanglement using optimal control,
Florian Dolde, Ville Bergholm, Ya Wang, Ingmar Jakobi, Sebastien Pezzagna, Jan Meijer, Philipp Neumann, Thomas Schulte-Herbrüggen, Jacob Biamonte, and Jörg Wrachtrup,
Nature Communications 5, 3371 (2014), arXiv:1309.4430.
Tensor network methods for invariant theory,
Jacob D. Biamonte, Ville Bergholm, and Marco Lanzagorta,
J. Phys. A: Math. Theor. 46, 475301 (2013), arXiv:1209.0631.
How to transfer between arbitrary n-qubit quantum states by coherent control and simplest switchable noise on a single qubit,
Ville Bergholm and Thomas Schulte-Herbrüggen,
(2012), arXiv:1206.4945.
Quantum Information Toolkit for Python,
Ville Bergholm et al.,
http://pypi.python.org/pypi/qit (2011).
Categorical quantum circuits,
Ville Bergholm and Jacob D. Biamonte,
J. Phys. A: Math. Theor. 44, 245304 (2011), arXiv:1010.4840.
Adiabatic quantum simulators,
Jacob D. Biamonte, Ville Bergholm, James D. Whitfield, Joe Fitzsimons, and Alán Aspuru-Guzik,
AIP Advances 1, 022126 (2011), arXiv:1002.0368.
Quantum Information Toolkit for MATLAB,
Ville Bergholm et al.,
http://sf.net/projects/qit (2009).
Suppression of 1/fα noise in one-qubit systems,
Pekko Kuopanportti, Mikko Möttönen, Ville Bergholm, Olli-Pentti Saira, Jun Zhang, and K. Birgitta Whaley,
Phys. Rev. A 77, 032334 (2008), arXiv:0704.0771.
Equivalent qubit dynamics under classical and quantum noise,
Olli-Pentti Saira, Ville Bergholm, Teemu Ojanen, and Mikko Möttönen,
Phys. Rev. A 75, 012308 (2007), arXiv:quant-ph/0605241.
A discrete local invariant for quantum gates,
Laura Koponen, Ville Bergholm, and Martti M. Salomaa,
Quant. Inf. and Comp. 6, 58 (2006), arXiv:quant-ph/0503141.
Optimal control of coupled Josephson qubits,
A.K. Spörl, T. Schulte-Herbrüggen, S.J. Glaser, Ville Bergholm, M.J. Storcz, J. Ferber, and F.K. Wilhelm,
Phys. Rev. A 75, 012302 (2007), arXiv:quant-ph/0504202.
Planar edgeless silicon detectors for the TOTEM experiment,
G. Ruggiero et al.,
IEEE Trans. on Nucl. Sci. 52, 1899–1902 (2005).
Quantum circuits with uniformly controlled one-qubit gates,
Ville Bergholm, Juha J. Vartiainen, Mikko Möttönen, and Martti M. Salomaa,
Phys. Rev. A 71, 052330 (2005), arXiv:quant-ph/0410066.
Transformation of quantum states using uniformly controlled rotations,
Mikko Möttönen, Juha J. Vartiainen, Ville Bergholm, and Martti M. Salomaa,
Quant. Inf. and Comp. 5, 467 (2005), arXiv:quant-ph/0407010.
Quantum circuits for general multiqubit gates,
Mikko Möttönen, Juha J. Vartiainen, Ville Bergholm, and Martti M. Salomaa,
Phys. Rev. Lett. 93, 130502 (2004), arXiv:quant-ph/0404089.
The TOTEM experiment,
V. Avati et al.,
Eur. Phys. J. C 34, 255–268 (2004).
Software Packages
I am the main developer of Quantum Information Toolkit, a free, open source numerical toolkit for quantum information and computing, available for both MATLAB and Python.

I’m currently working on the new version of the DYNAMO optimal control platform.

Research Scientist at ISI Foundation
Postdoctoral Researcher at Technische Universität München
Postdoctoral Researcher at Aalto University
Postdoctoral Fellow at Harvard University
D.Sc. from Helsinki University of Technology.

Research Interests
My research interests include quantum information, tensor networks, simulating and controlling quantum systems, complex networks theory, and developing scientific software.

Publications
Chiral Quantum Walks,
DaWei Lu, Jacob D. Biamonte, Jun Li, Hang Li, Tomi H. Johnson, Ville Bergholm, Mauro Faccin, Zoltán Zimborás, Raymond Laflamme, Jonathan Baugh, and Seth Lloyd,
arXiv:1405.6209 (2014).
Quantum Simulation of Helium Hydride in a Solid-State Spin Register,
Ya Wang, Florian Dolde, Jacob Biamonte, Ryan Babbush, Ville Bergholm, Sen Yang, Ingmar Jakobi, Philipp Neumann, Alán Aspuru-Guzik, James D. Whitfield, and Jörg Wrachtrup,
arXiv:1405.2696 (2014).
Community Detection in Quantum Complex Networks,
Mauro Faccin, Piotr Migdał, Tomi Johnson, Ville Bergholm, and Jacob Biamonte,
Phys. Rev. X 4, 041012 (2014), arXiv:1310.6638.
High fidelity spin entanglement using optimal control,
Florian Dolde, Ville Bergholm, Ya Wang, Ingmar Jakobi, Sebastien Pezzagna, Jan Meijer, Philipp Neumann, Thomas Schulte-Herbrüggen, Jacob Biamonte, and Jörg Wrachtrup,
Nature Communications 5, 3371 (2014), arXiv:1309.4430.
Tensor network methods for invariant theory,
Jacob D. Biamonte, Ville Bergholm, and Marco Lanzagorta,
J. Phys. A: Math. Theor. 46, 475301 (2013), arXiv:1209.0631.
How to transfer between arbitrary n-qubit quantum states by coherent control and simplest switchable noise on a single qubit,
Ville Bergholm and Thomas Schulte-Herbrüggen,
(2012), arXiv:1206.4945.
Quantum Information Toolkit for Python,
Ville Bergholm et al.,
http://pypi.python.org/pypi/qit (2011).
Categorical quantum circuits,
Ville Bergholm and Jacob D. Biamonte,
J. Phys. A: Math. Theor. 44, 245304 (2011), arXiv:1010.4840.
Adiabatic quantum simulators,
Jacob D. Biamonte, Ville Bergholm, James D. Whitfield, Joe Fitzsimons, and Alán Aspuru-Guzik,
AIP Advances 1, 022126 (2011), arXiv:1002.0368.
Quantum Information Toolkit for MATLAB,
Ville Bergholm et al.,
http://sf.net/projects/qit (2009).
Suppression of 1/fα noise in one-qubit systems,
Pekko Kuopanportti, Mikko Möttönen, Ville Bergholm, Olli-Pentti Saira, Jun Zhang, and K. Birgitta Whaley,
Phys. Rev. A 77, 032334 (2008), arXiv:0704.0771.
Equivalent qubit dynamics under classical and quantum noise,
Olli-Pentti Saira, Ville Bergholm, Teemu Ojanen, and Mikko Möttönen,
Phys. Rev. A 75, 012308 (2007), arXiv:quant-ph/0605241.
A discrete local invariant for quantum gates,
Laura Koponen, Ville Bergholm, and Martti M. Salomaa,
Quant. Inf. and Comp. 6, 58 (2006), arXiv:quant-ph/0503141.
Optimal control of coupled Josephson qubits,
A.K. Spörl, T. Schulte-Herbrüggen, S.J. Glaser, Ville Bergholm, M.J. Storcz, J. Ferber, and F.K. Wilhelm,
Phys. Rev. A 75, 012302 (2007), arXiv:quant-ph/0504202.
Planar edgeless silicon detectors for the TOTEM experiment,
G. Ruggiero et al.,
IEEE Trans. on Nucl. Sci. 52, 1899–1902 (2005).
Quantum circuits with uniformly controlled one-qubit gates,
Ville Bergholm, Juha J. Vartiainen, Mikko Möttönen, and Martti M. Salomaa,
Phys. Rev. A 71, 052330 (2005), arXiv:quant-ph/0410066.
Transformation of quantum states using uniformly controlled rotations,
Mikko Möttönen, Juha J. Vartiainen, Ville Bergholm, and Martti M. Salomaa,
Quant. Inf. and Comp. 5, 467 (2005), arXiv:quant-ph/0407010.
Quantum circuits for general multiqubit gates,
Mikko Möttönen, Juha J. Vartiainen, Ville Bergholm, and Martti M. Salomaa,
Phys. Rev. Lett. 93, 130502 (2004), arXiv:quant-ph/0404089.
The TOTEM experiment,
V. Avati et al.,
Eur. Phys. J. C 34, 255–268 (2004).

Software Packages
I am the main developer of Quantum Information Toolkit, a free, open source numerical toolkit for quantum information and computing, available for both MATLAB and Python.

I’m currently working on the new version of the DYNAMO optimal control platform.