Prof. Dr. Stefan Filipp

Contact
Room 101
+49 (0) 89 289 - 14201
Assignments
  • Director: Head of Division: Quantum Computing and Information Processing
IDs

 

Dr. Stefan Filipp holds a position as Full Professor (Chair) in Physics at the TU Munich and as Director of the Walther-Meißner-Institute of the Bavarian Academy of Sciences and Humanities since May 2020. Before he has been working at IBM Research where he joined in 2014 at the Watson Research Center in New York, USA to work on superconducting circuit quantum computing. In September of 2015, Stefan moved to the IBM Research – Zurich Laboratory, where he then became technical leader of the superconducting qubit team focusing on quantum information processing with superconducting circuits.

Prior to joining IBM, Stefan was a member of the Quantum Device Lab of the Swiss Federal Institute of Technology (ETH) in Zurich, Switzerland, from 2008 to 2014, where he worked on hybrid cavity QED, geometric phases, quantum optics and quantum information processing with superconducting circuits.

Stefan was awarded a PhD (with distinction) in Technical Physics from the Technical University of Vienna, Austria in 2006 for his dissertation entitled “New Aspects of the Quantum Geometric Phase”. For his PhD thesis he received the Victor-Hess-Award from the Austrian Physical Society.

He received his undergraduate degree (Dipl.-Ing.) in Technical Physics from the Technical University of Vienna, Austria in 2003 and a Master’s of Science degree in Physics from Uppsala University, Sweden, in 2002.

 

Recent Courses
Exercise to Quantum Computing with Superconducting Qubits: Basic Concepts (0000001350)
Excercise | W 2024
Journal Club on Quantum Systems (0000000497)
Seminar | W 2024
Quantum Computing with Superconducting Qubits: Basic Concepts (0000001346)
Lecture | W 2024
Superconducting Quantum Circuits (0000000622)
Proseminar | W 2024
Walther-Meißner-Seminar on Topical Problems of Low Temperature Physics (0000000668)
Seminar | W 2024
Exercise to Quantum Computing with Superconducting Qubits: architecture and algorithms (0000002550)
Excercise | S 2024
Quantum Computing with Superconducting Qubits: architecture and algorithms (0000002549)
Lecture | S 2024
Superconducting Quantum Circuits (0000001370)
Proseminar | S 2024
Walther-Meißner-Seminar on Topical Problems of Low Temperature Physics (0000000360)
Seminar | S 2024
Exercise to QST Experiment: Quantum Hardware (0000001266)
Excercise | W 2023
Journal Club on Quantum Systems (0000000497)
Seminar | W 2023
QST Experiment: Quantum Hardware (0000001264)
Lecture | W 2023
Superconducting Quantum Circuits (0000000622)
Proseminar | W 2023
Walther-Meißner-Seminar on Topical Problems of Low Temperature Physics (0000000668)
Seminar | W 2023
Exercise to Quantum Computing with Superconducting Qubits: architecture and algorithms (0000002550)
Excercise | S 2023
Journal Club on Quantum Systems (0000004645)
Seminar | S 2023
Quantum Computing with Superconducting Qubits: architecture and algorithms (0000002549)
Lecture | S 2023
Walther-Meißner-Seminar on Topical Problems of Low Temperature Physics (0000000360)
Seminar | S 2023
Publications of Prof. Dr. Stefan Filipp

2024

Efficient Decoupling of a Nonlinear Qubit Mode from Its Environment
Research Article | Physical Review X 14, 041007  (2024)
Preprint: arXiv:2312.16988
F. Pfeiffer, M. Werninghaus, C. Schweizer, N. Bruckmoser, L. Koch, N. J. Glaser, G. Huber, D. Bunch, F. X. Haslbeck, M. Knudsen, G. Krylov, K. Liegener, A. Marx, L. Richard, J. H. Romeiro, F. Roy, J. Schirk, C. Schneider, M. Singh, L. Södergren, I. Tsitsilin, F. Wallner, C. A. Riofrío, S. Filipp

2023

Controlled-controlled-phase gates for superconducting qubits mediated by a shared tunable coupler
Research Article | Physical Review Applied 19, 044001  (2023)
Preprint: arXiv:2206.12392
Niklas J. Glaser, Federico Roy, Stefan Filipp
Geometric and holonomic quantum computation
Research Article | Physics Reports 1027, 1-53  (2023)
Preprint: arXiv:2110.03602
Jiang Zhang, Thi Ha Kyaw, Stefan Filipp, Leong-Chuan Kwek, Erik Sjöqvist, Dianmin Tong
Quantencomputer – Präzise Kontrolle über die Welt der Quanten in 'Chancen und Risiken von Quantentechnologien'
Book | Springer-Verlag GmbH  (2023)
Stefan Filipp (Eds. Alissa Wilm, Florian Neukart)
Quantencomputing - mit Supraleitung und Spin
Review | Physik Journal 22, 42-45  (2023)
Stefan Filipp, Gian Salis
Surface acoustic wave resonators on thin film piezoelectric substrates in the quantum regime
Research Article | Materials for Quantum Technology 3, 021001  (2023)
Preprint: arXiv:2301.11213
Thomas Luschmann, Alexander Jung, Stephan Geprägs, Franz X. Haslbeck, Achim Marx, Stefan Filipp, Simon Gröblacher, Rudolf Gross, Hans Huebl

2022

Direct implementation of a perceptron in superconducting circuit quantum hardware
Research Article | Physical Review Research 4, 033190  (2022)
Preprint: arXiv:2111.12669
Marek Pechal, Federico Roy, Samuel A. Wilkinson, Gian Salis, Max Werninghaus, Michael J. Hartmann, Stefan Filipp
Effective nonlocal parity-dependent couplings in qubit chains
Research Article | Physical Review Research 4, 033166  (2022)
Preprint: arXiv:2203.07331
Maximilian Nägele, Christian Schweizer, Federico Roy, Stefan Filipp
Magnetic field robust high quality factor NbTiN superconducting microwave resonators
Research Article | Materials for Quantum Technology 2, 015002  (2022)
Preprint: arXiv:2112.08296
Manuel Müller, Thomas Luschmann, Andreas Faltermeier, Stefan Weichselbaumer, Leon Koch, Gerhard B. P. Huber, Hans Werner Schumacher, Niels Ubbelohde, David Reifert, Thomas Scheller, Frank Deppe, Achim Marx, Stefan Filipp, Matthias Althammer, Rudolf Gross, Hans Huebl
Quantum optimal control in quantum technologies. Strategic report on current status, visions and goals for research in Europe
Research Article | EPJ Quantum Technology 9, 19  (2022)
Christiane P. Koch, Ugo Boscain, Tommaso Calarco, Gunther Dirr, Stefan Filipp, Steffen J. Glaser, Ronnie Kosloff, Simone Montangero, Thomas Schulte-Herbrüggen, Dominique Sugny, Frank K. Wilhelm
Single Shot i-Toffoli Gate in Dispersively Coupled Superconducting Qubits
Research Article | Applied Physics Letters 120  (2022)
Preprint: arXiv:2111.05938
Aneirin J. Baker, Gerhard B. P. Huber, Niklas J. Glaser, Federico Roy, Ivan Tsitsilin, Stefan Filipp and Michael J. Hartmann

2021

Characterization and Tomography of a Hidden Qubit
Research Article | Physical Review X 11, 041032  (2021)
Preprint: arXiv:2011.08987
M. Pechal, G. Salis, M. Ganzhorn, D. J. Egger, M. Werninghaus, and S. Filipp
Effects of surface treatment on flux tunable transmon qubits *
Research Article | npj Quantum Information 7, 157  (2021)
Preprint: arXiv:2103.07970
M. Mergenthaler, C. Müller, M. Ganzhorn, S. Paredes, P. Müller, G. Salis, V. P. Adiga, M. Brink, M. Sandberg, J. B. Hertzberg, S. Filipp, A. Fuhrer.
* Affiliation with other organization
High-speed calibration and characterization of superconducting quantum processors without qubit reset
Research Article | Physical Review X Quantum 2, 020324  (2021)
Preprint: arXiv:2010.06576
Max Werninghaus and Daniel Egger and Stefan Filipp
Integrated tool set for control, calibration, and characterization of quantum devices applied to superconducting qubits
Research Article | Physical Review Applied 15, 034080  (2021)
Preprint: arXiv:2009.09866
Nicolas Wittler and Federico Roy and Kevin Pack and Max Werninghaus and Anurag Saha Roy and Daniel J. Egger and Stefan Filipp and Frank K. Wilhelm and Shai Machnes
Leakage reduction in fast superconducting qubit gates via optimal control
Research Article | npj Quantum Information 7, 14  (2021)
Preprint: arXiv:2003.05952
Max Werninghaus and Daniel J Egger and Federico Roy and Shai Machnes and Frank K Wilhelm and Stefan Filipp
Quantencomputer - können wir damit rechnen?
Other | Akadmie Aktuell (ISSN 1436 -753X), Heft 2 (74), 20-23  (2021)
Stefan Filipp
Single-cycle operations using controllably mediated exchange-type interactions between qubits *
Patent | US Patent 10,997,520  (2021)
Gian von Salis and N. Moll and Stefan Filipp and Daniel J. Egger
* Affiliation with other organization

2020

Benchmarking the noise sensitivity of different parametric two-qubit gates in a single superconducting quantum computing platform *
Research Article | Physical Review Research 2, 033447  (2020)
M. Ganzhorn, G. Salis, D. J. Egger, A. Fuhrer, M. Mergenthaler, C. Müller, P. Müller, S. Paredes, M. Pechal, M. Werninghaus, and S. Filipp
* Affiliation with other organization
Buried electrode geometry for lowering surface losses in superconducting microwave circuits *
Patent |
Andreas Fuhrer and Andreas Kuhlmann and Ute Drechsler and Veeresh V Deshpande and Stefan Filipp and Marc Ganzhorn
* Affiliation with other organization
Time-resolved tomography of a driven adiabatic quantum simulation
Research Article | Physical Review A 102, 062611  (2020)
Preprint: arXiv:2001.05243
Gian Salis, Nikolaj Moll, Marco Roth, Marc Ganzhorn, and Stefan Filipp

2019

Adiabatic quantum simulations with driven superconducting qubits *
Research Article | Physical Review A 99, 022323  (2019)
Marco Roth and Nikolaj Moll and Gian Salis and Marc Ganzhorn and Daniel J Egger and Stefan Filipp and Sebastian Schmidt
* Affiliation with other organization
Cross-talk compensation in quantum processing devices *
Patent |
Marc Ganzhorn and Daniel Josef Egger and Stefan Filipp and Gian R Von Salis and Nikolaj Moll
* Affiliation with other organization
Fast quantum gates with first-order transitions via frequency-modulated tunable coupling element *
Patent |
Stefan Filipp and Nikolaj Moll and Daniel J Egger and Marc Ganzhorn and Andreas Fuhrer and Gian R Von Salis
* Affiliation with other organization
Gate-Efficient Simulation of Molecular Eigenstates on a Quantum Computer *
Research Article | Physical Review Applied 11, 044092  (2019)
M Ganzhorn and D J Egger and P Barkoutsos and P Ollitrault and G Salis and N Moll and M Roth and A Fuhrer and P Mueller and S Woerner and I Tavernelli and S Filipp
* Affiliation with other organization
Multi-qubit entangling gate using a frequency-modulated tunable coupler *
Patent |
Gian R Von Salis and Nikolaj Moll and Marc Ganzhorn and Daniel J Egger and Stefan Filipp
* Affiliation with other organization
Multi-Qubit Tunable Coupling Architecture using Fixed-Frequency Superconducting Qubits *
Patent |
Stefan Filipp and Jay Gambetta
* Affiliation with other organization

2018

Qiskit Backend Specifications for OpenQASM and OpenPulse Experiments *
Research Article | arXiv:1809.03452
D C McKay and T Alexander and L Bello and M J Biercuk and L Bishop and J Chen and J M Chow and Corcoles A.D. and D Egger and S Filipp and J Gomez and M Hush and A Javadi-Abhari and D Moreda and P Nation and B Paulovicks and E Winston and C J Wood and J Wootton and J M Gambetta
* Affiliation with other organization
Entanglement generation in superconducting qubits using holonomic operations *
Research Article | Physical Review Research 11, 014017  (2018)
Preprint: arXiv:1804.04900
D J Egger and M Ganzhorn and G Salis and A Fuhrer and P Muller and Barkoutsos P Kl. and N Moll and I Tavernelli and S Filipp
* Affiliation with other organization
Integrated microwave-to-optical single-photon transducer with strain-induced electro-optic material *
Patent |
Lev S Bishop and Stefan Filipp and Jay M Gambetta and Jason S Orcutt and Hanhee Paik
* Affiliation with other organization
Observation of topological Uhlmann phases with superconducting qubits *
Research Article | npj Quantum Information 4, 10  (2018)
O Viyuela and A Rivas and S Gasparinetti and A Wallraff and S Filipp and M A Martin-Delgado
* Affiliation with other organization
Pulsed reset protocol for fixed-frequency superconducting qubits *
Research Article | Physical Review Research 10, 044030  (2018)
Preprint: arXiv:1802.08980
D J Egger and M Ganzhorn and G Salis and A Fuhrer and P Mueller and S Filipp
* Affiliation with other organization
Quantum algorithms for electronic structure calculations: Particle-hole Hamiltonian and optimized wave-function expansions *
Research Article | Physical Review A 98, 022322  (2018)
Panagiotis Kl. Barkoutsos and Jerome F Gonthier and Igor Sokolov and Nikolaj Moll and Gian Salis and Andreas Fuhrer and Marc Ganzhorn and Daniel J Egger and Matthias Troyer and Antonio Mezzacapo and Stefan Filipp and Ivano Tavernelli
* Affiliation with other organization
Quantum Computers and Their Software Interfaces *
Other | ERCIM NEWS , 27--28  (2018)
Peter Mueller and Andreas Fuhrer and Stefan Filipp
* Affiliation with other organization
Quantum optimization using variational algorithms on near-term quantum devices *
Research Article | Quantum Science and Technology 3, 030503  (2018)
Nikolaj Moll and Panagiotis Barkoutsos and Lev S Bishop and Jerry M Chow and Andrew Cross and Daniel J. Egger and Stefan Filipp and Andreas Fuhrer and Jay M. Gambetta and Marc Ganzhorn and Abhinav Kandala and Antonio Mezzacapo and Peter Müller and Walter Riess and Gian Salis and John Smolin and Ivano Tavernelli and Kristan Temme
* Affiliation with other organization

2017

Fermionic Hamiltonians for quantum simulations: a general reduction scheme *
Research Article | arXiv:1706.03637
Panagiotis Kl. Barkoutsos and Nikolaj Moll and Peter W J Staar and Peter Mueller and Andreas Fuhrer and Stefan Filipp and Matthias Troyer and Ivano Tavernelli
* Affiliation with other organization
Analysis of a parametrically driven exchange-type gate and a two-photon excitation gate between superconducting qubits *
Research Article | Physical Review A 96, 062323  (2017)
Marco Roth and Marc Ganzhorn and Nikolaj Moll and Stefan Filipp and Gian Salis and Sebastian Schmidt
* Affiliation with other organization

2016

Characterizing errors on qubit operations via iterative randomized benchmarking *
Research Article | Physical Review A 93, 012301  (2016)
Sarah Sheldon and Lev S Bishop and Easwar Magesan and Stefan Filipp and Jerry M Chow and Jay M Gambetta
* Affiliation with other organization
Measurement of a Vacuum-Induced Geometric Phase *
Research Article | Science Advances 2  (2016)
S Gasparinetti and S Berger and A A Abdumalikov Jr. and M Pechal and S Filipp and A Wallraff
* Affiliation with other organization
Multi-qubit tunable coupling architecture using fixed-frequency superconducting qubits. *
Patent | US 14/985,529  (2016)
S Filipp and J M Gambetta
* Affiliation with other organization
Universal Gate for Fixed-Frequency Qubits via a Tunable Bus *
Research Article | Physical Review Applied 6, 064007  (2016)
David C McKay and Stefan Filipp and Antonio Mezzacapo and Easwar Magesan and Jerry M Chow and Jay M Gambetta
* Affiliation with other organization

2009

Characterization of a new ultra-cold neutron storage setup for arbitrary 3D-spin control *
Research Article | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 598, 571--577  (2009)
S Filipp and J Klepp and C Plonka and U Schmidt and P Geltenbort and Y Hasegawa and H Rauch
* Affiliation with other organization
Dressed Collective Qubit States and the Tavis-Cummings Model in Circuit QED *
Research Article | Physical Review Letters 103, 083601--4  (2009)
J M Fink and R Bianchetti and M Baur and M Göppl and L Steffen and S Filipp and P J Leek and A Blais and A Wallraff
* Affiliation with other organization
Dynamics of dispersive single-qubit readout in circuit quantum electrodynamics *
Research Article | Physical Review A 80, 043840--7  (2009)
R Bianchetti and S Filipp and M Baur and J ~M Fink and M Göppl and P ~J Leek and L Steffen and A Blais and A Wallraff
* Affiliation with other organization
Entanglement between degrees of freedom of single neutrons *
Research Article | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 611, 310--313  (2009)
Y Hasegawa and G Badurek and S Filipp and J Klepp and R Loidl and S Sponar and H Rauch
* Affiliation with other organization
Experimental Demonstration of the Stability of Berry's Phase for a Spin-1/2 Particle *
Research Article | Physical Review Letters 102, 030404  (2009)
S Filipp and J Klepp and Y Hasegawa and C Plonka-Spehr and U Schmidt and P Geltenbort and H Rauch
* Affiliation with other organization
Measurement of Autler-Townes and Mollow Transitions in a Strongly Driven Superconducting Qubit *
Research Article | Physical Review Letters 102, 243602  (2009)
M Baur and S Filipp and R Bianchetti and J M Fink and M Göppl and L Steffen and P J Leek and A Blais and A Wallraff
* Affiliation with other organization
Thermal Excitation of Multi-Photon Dressed States in Circuit Quantum Electrodynamics *
Research Article | Phys. Scr. T137, 014013  (2009)
J ~M Fink and M Baur and R Bianchetti and S Filipp and M Göppl and P ~J Leek and L Steffen and A Blais and A Wallraff
* Affiliation with other organization
Two-Qubit State Tomography Using a Joint Dispersive Readout *
Research Article | Physical Review Letters 102, 200402--4  (2009)
S Filipp and P Maurer and P ~J Leek and M Baur and R Bianchetti and J ~M Fink and M Göppl and L Steffen and J ~M Gambetta and A Blais and A Wallraff
* Affiliation with other organization
Using sideband transitions for two-qubit operations in superconducting circuits *
Research Article | Physical Review B 79, 180511  (2009)
P ~J Leek and S Filipp and P Maurer and M Baur and R Bianchetti and J ~M Fink and M Göppl and L Steffen and A Wallraff
* Affiliation with other organization

2008

Coherent energy manipulation in single-neutron interferometry *
Research Article | Physical Review A 78, 061604  (2008)
S Sponar and J Klepp and R Loidl and S Filipp and G Badurek and Y Hasegawa and H Rauch
* Affiliation with other organization
Coplanar Waveguide Resonators for Circuit Quantum Electrodynamics *
Research Article | Journal of Applied Physics 104, 113904  (2008)
M Göppl and A Fragner and M Baur and R Bianchetti and S Filipp and J M Fink and P J Leek and G Puebla and L Steffen and A Wallraff
* Affiliation with other organization
Noise fluctuations and the Berry phase: Towards an experimental test *
Review | European Physical Journal - Special Topics 160, 165174  (2008)
S Filipp
* Affiliation with other organization
Observation of nonadditive mixed-state phases with polarized neutrons *
Research Article | Physical Review Letters 101, 150404  (2008)
Jürgen Klepp and Stephan Sponar and Stefan Filipp and Matthias Lettner and Gerald Badurek and Yuji Hasegawa
* Affiliation with other organization
Proposed experiment for testing quantum contextuality with neutrons *
Research Article | Physical Review Letters 100, 130404  (2008)
Adán Cabello and Stefan Filipp and Helmut Rauch and Yuji Hasegawa
* Affiliation with other organization

2007

Evidence for entanglement and full tomographic analysis of Bell states in a single-neutron system *
Research Article | Physical Review A 76, 052108  (2007)
Yuji Hasegawa and Rudolf Loidl and Gerald Badurek and Stefan Filipp and Jürgen Klepp and Helmut Rauch
* Affiliation with other organization

2006

Hidden observables in neutron quantum interferometry *
Research Article | Physica B: Condensed Matter 385, 1359--1364  (2006)
Helmut Rauch and Matthias Baron and Stefan Filipp and Yuji Hasegawa and Hartmut Lemmel and Rudolf Loidl
* Affiliation with other organization
Quantum contextuality induced by spin-path entanglement in single-neutrons *
Research Article | Acta Physica Hungarica B) Quantum Electronics 26, 157--164  (2006)
Yuji Hasegawa and Rudolf Loidl and Gerald Badurek and Stefan Filipp and J Klepp and Helmut Rauch
* Affiliation with other organization
State space geometry of a double-loop interferometer *
Research Article | Acta Physica Hungarica B) Quantum Electronics 26, 173  (2006)
Stefan Filipp and Yuji Hasegawa and Rudolf Loidl and Helmut Rauch
* Affiliation with other organization

2005

Kinematic approach to off-diagonal geometric phases of nondegenerate and degenerate mixed states *
Research Article | Physical Review A 71, 032106  (2005)
DM Tong and Erik Sjöqvist and Stefan Filipp and LC Kwek and CH Oh
* Affiliation with other organization
Noncyclic geometric phase due to spatial evolution in a neutron interferometer *
Research Article | Physical Review A 72, 021602  (2005)
Stefan Filipp and Yuji Hasegawa and Rudolf Loidl and Helmut Rauch
* Affiliation with other organization
Off-diagonal quantum holonomy along density operators *
Research Article | Phys. Lett. A 342, 205--212  (2005)
S Filipp and Sj"oqvist
* Affiliation with other organization
Spatial non-cyclic geometric phase in neutron interferometry *
Research Article | Journal of research of the National Institute of Standards and Technology 110, 251  (2005)
Stefan Filipp and Yuji Hasegawa and Rudolf Loidl and Helmut Rauch
* Affiliation with other organization
Tracing the bounds on Bell-type inequalities *
Research Article |
Stefan Filipp and Karl Svozil
* Affiliation with other organization

2004

Generalizing Ŧsirelson's Bound on Bell-Inequalities Using a Min-Max Principle *
Research Article | Physical Review Letters 93, 130407  (2004)
S Filipp and K Svozil
* Affiliation with other organization
Testing the bounds on quantum probabilities *
Research Article | Physical Review A 69, 032101  (2004)
S Filipp and K Svozil
* Affiliation with other organization

2003

Boole-Bell-type inequalities in Mathematica *
Research Article |
Stefan Filipp and Karl Svozil
* Affiliation with other organization
Off-diagonal generalization of the mixed-state geometric phase *
Research Article | Physical Review A 68, 042112  (2003)
S Filipp and E Sjoqvist
* Affiliation with other organization
Off-diagonal geometric phase for mixed states *
Research Article | Physical Review Letters 90, 050403  (2003)
S Filipp and E Sjoqvist
* Affiliation with other organization

0

Ultrahigh Vacuum Packaging and Surface Cleaning for Quantum Devices
arXiv:2010.12090
M. Mergenthaler and S. Paredes and P. Müller and C. Müller and S. Filipp and M. Sandberg and J. Hertzberg and V. P. Adiga and M. Brink and A. Fuhrer
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