Michael Wimmer
Personal information
Dr. Michael Wimmer
QuTech
Delft University of Technology
Lorentzweg 1
2628 CJ Delft
The Netherlands
Room: F340
Phone: +31-15-27 86779
E-Mail: m.t.wimmer(at)tudelft.nl
If you would like to contact me, you can check my agenda for availability. You may drop by at any time, but if you prewarn me a few hours ahead via email, I can better guarantee to be there.
Research interests
I am a theoretical physicist working on Majorana fermions, topological phases
of matter and quantum computing. I am working as a team leader at
QuTech, where I lead
the Quantum Tinkerer group
together with Anton Akhmerov.
Previously, I was a post-doc in the
mesoscopic physics group of Carlo Beenakker in Leiden.
My main research interests are:
- Topological aspects of condensed matter physics
- Topological insulators and superconductors
- Majorana fermions: Making them and finding them in transport measurements
- Effects of disorder
- Numerical methods
- Numerical algorithms for quantum transport calculations. Check kwant-project.org for our
open source quantum transport code!
- Numerical computation of Pfaffians. See Downloads for an implementation
Other interests of mine include
- Graphene:
- Edge states in nanoribbons and quantum dots
- Spintronics in graphene
- Spintronics
- Interplay between Rashba and Dresselhaus spin-orbit coupling
- Current-induced spin accumulation, spin Hall effect
Publications
(For citations and references see my Google Scholar profile)
2017
- A.J.A. Beukman, F.K. de Vries, J. van Veen, R. Skolasinski, M. Wimmer, F. Qu, D.T. de Vries, B.-M. Nguyen, W. Yi, A.A. Kiselev, M. Sokolich, M.J. Manfra, F. Nichele, C.M. Marcus, L.P. Kouwenhoven.
Spin-orbit interaction in a dual gated InAs/GaSb quantum well.
arXiv:1704.03482.
- G. W. Winkler, D. Varjas, R. J. Skolasinski, A. A. Soluyanov, M. Troyer, M. Wimmer.
Orbital contributions to the electron g-factor in semiconductor nanowires.
arXiv:1703.10091.
- J. Kammhuber, M. C. Cassidy, F. Pei, M. P. Nowak, A. Vuik, D. Car, S. R. Plissard, E. P. A. M. Bakkers, M. Wimmer, L. P. Kouwenhoven.
Conductance through a helical state in an InSb nanowire.
To appear in Nature Comm. (arXiv:1701.06878).
- H. Zhang, Ö. Gül, S. Conesa-Boj, K. Zuo, V. Mourik, F. K. de Vries, J. van Veen, D. J. van Woerkom, M. P. Nowak, M. Wimmer, D. Car, S. Plissard, E. P. A. M. Bakkers, M. Quintero-Pérez, S. Goswami, K. Watanabe, T. Taniguchi, L. P. Kouwenhoven.
Ballistic Majorana nanowire devices.
To appear in Nature Comm. (arXiv:1603.04069)
- B. Pekerten, A. Teker, O. Bozat, M. Wimmer, I. Adagideli.
Disorder-induced topological transitions in multichannel Majorana wires.
Phys. Rev. B 95, 064507 (2017) (arXiv:1509.00449).
- D. Car, S. Conesa-Boj, H. Zhang, R. L. M. Op het Veld, M. W. A. de Moor, E. M. T. Fadaly, Ö. Gül, S. Kölling, S. R. Plissard, V. Toresen, M. Wimmer, K. Watanabe, T. Taniguchi, L. P. Kouwenhoven, and E. P. A. M. Bakkers.
InSb Nanowires with Built-In GaxIn1-xSb Tunnel Barriers for Majorana Devices.
Nano Lett. 17, 721 (2017) (arXiv:1611.05681).
- F. Nichele, M. Kjaergaard, H. J. Suominen, R. Skolasinski, M. Wimmer, B.-M. Nguyen, A. A. Kiselev, W. Yi, M. Sokolich, M. J. Manfra, F. Qu, A. J. A. Beukman, L. P. Kouwenhoven, C. M. Marcus.
Giant spin-orbit splitting in inverted InAs/GaSb double quantum wells.
Phys. Rev. Lett. 118, 016801 (2017) (arXiv:1605.01241).
2016
- F. Qu, J. van Veen, F. K. de Vries, A. J. A. Beukman, M. Wimmer, W. Yi, A. A. Kiselev, B.-M. Nguyen, M. Sokolich, M. J. Manfra, F. Nichele, C. M. Marcus, L. P. Kouwenhoven.
Quantized conductance and large g-factor anisotropy in InSb quantum point contacts.
Nano Lett. 16, 7509 (2016) (arXiv:1608.05478).
- M. Kjaergaard, F. Nichele, H. J. Suominen, M. P. Nowak, M. Wimmer, A. R. Akhmerov, J. A. Folk, K. Flensberg, J. Shabani, C. J. Palmstrøm, C. M. Marcus.
Quantized conductance doubling and hard gap in a two-dimensional semiconductor-superconductor heterostructure.
Nature Comm. 7, 12841 (2016) (arXiv:1603.01852)
- A. Vuik, D. Eeltink, A. R. Akhmerov, M. Wimmer.
Effects of the electrostatic environment on the Majorana nanowire devices.
New J. Phys. 18, 033013 (2016)
(arXiv:1511.09044).
2015
- F. Qu, A. J. A. Beukman, S. Nadj-Perge, M. Wimmer, B.-M. Nguyen, W. Yi, J. Thorp, M. Sokolich, A. A. Kiselev, M. J. Manfra, C. M. Marcus, L. P. Kouwenhoven.
Electric and Magnetic Tuning Between the Trivial and Topological Phases in InAs/GaSb Double Quantum Wells
Phys. Rev. Lett. 115, 036803 (2015) (arXiv:1502.05714).
- I. van Weperen, B. Tarasinski, D. Eeltink, V. S. Pribiag, S. R. Plissard, E. P. A. M. Bakkers, L. P. Kouwenhoven, M. Wimmer.
Spin-orbit interaction in InSb nanowires
Phys. Rev. B 91, 201413(R) (2015) (arXiv:1412.0877).
2014
- M. Diez, J. P. Dahlhaus, M. Wimmer, C. W. J. Beenakker.
Emergence of massless Dirac fermions in graphene's Hofstadter butterfly at switches of the quantum Hall phase connectivity.
Phys. Rev. Lett. 112, 196602 (2014) (arXiv:1401.4401).
- I. Adagideli, M. Wimmer, A. Teker.
Inducing topological order in dirty wires: Majorana fermions from scattering.
Phys. Rev. B 89, 144506 (arXiv:1302.2612).
- D. I. Pikulin, T. Hyart, Shuo Mi, J. Tworzydlo, M. Wimmer, C. W. J. Beenakker.
Disorder and magnetic-field induced breakdown of helical edge conduction in an inverted electron-hole bilayer .
Phys. Rev. B 89, 161403(R) (arXiv:1401.0299).
- M. Raith, C. Ertler, P. Stano, M. Wimmer, J. Fabian.
Electric control of tunneling energy in graphene double dots.
Phys. Rev. B 89, 085414 (2014) (arXiv:1312.4215).
2013
- C. W. Groth, M. Wimmer, A. R. Akhmerov, X. Waintal.
Kwant: a software package for quantum transport.
arXiv:1309.2926.
- C. W. J. Beenakker, J. M. Edge, J. P. Dahlhaus, D. I. Pikulin, Shuo Mi, M. Wimmer.
Wigner-Poisson statistics of topological transitions in a Josephson junction.
Phys. Rev. Lett. 111, 037001 (2013) ( arXiv:1305.2924)
- Shuo Mi, D. I. Pikulin, M. Wimmer, C. W. J. Beenakker.
Proposal for the detection and braiding of Majorana fermions in a quantum spin Hall insulator.
Phys. Rev. B 87, 241405(R) (2013) ( arXiv:1304.1685).
- M. Diez, I. C. Fulga, D. I. Pikulin, M. Wimmer, A. R. Akhmerov, C. W. J. Beenakker.
Phase-locked magnetoconductance oscillations as a probe of Majorana edge states
Phys. Rev. B 87, 125406 (2013) ( arXiv:1301.4400).
2012
- D. I. Pikulin, J. P. Dahlhaus, M. Wimmer, C. W. J. Beenakker.
Zero-voltage conductance peak from weak antilocalization in a Majorana nanowire
New. J. Phys. 14, 125011 (2012)
(arXiv:1206.6687).
- M. Wimmer
Algorithm 923: Efficient numerical computation of the Pfaffian for dense and banded skew-symmetric matrices
ACM Trans. Math. Software 38, 30 (2012)
(arXiv:1102.3440v1)
- M. Diez, J. P. Dahlhaus, M. Wimmer, C. W. J. Beenakker.
Andreev reflection from a topological superconductor with chiral symmetry
Phys. Rev. B 86, 094501 (2012)
(arXiv:1206.3079v1).
- M. Wimmer.
Majorana auf Draht
Physik Journal 06/2012.
- J. Wurm, M. Wimmer, K. Richter.
Symmetries and the conductance of graphene nanoribbons with long-range disorder
Phys. Rev. B 85, 245418 (2012). (arXiv:1111.5969v1.)
2011
- J. A. M. van Ostaay, A. R. Akhmerov, C. W. J. Beenakker, M. Wimmer
Dirac boundary condition at the reconstructed zigzag edge of graphene
Phys. Rev. B 84, 195434 (2011)
(arXiv:1109.0884v1).
- J.-D. Urbina, M. Wimmer, D. Bauernfeind, D. Espitia, I. Adagideli, K. Richter
Universal spatial correlations in random spinor fields.
arXiv:1108.2652v1.
- D. F. Urban, D. Bercioux, M. Wimmer, W. Häußler.
Barrier transmission of Dirac-like pseudospin-one particles.
Phys. Rev. B 84, 115136 (2011) (arXiv:1106.2170).
- M. Wimmer, A.R. Akhmerov, J.P. Dahlhaus, C.W.J. Beenakker.
Quantum point contact as a probe of a topological superconductor
New J. Phys. 13, 053016 (2011) (arXiv:1101.5795v1).
- V. Krueckl, M. Wimmer, I. Adagideli, J. Kuipers, K. Richter
Weak localization in mesoscopic hole transport: Berry phases and classical correlations
Phys. Rev. Lett. 106, 146801 (2011)
(arXiv:1009.5571v1).
- C.W.J. Beenakker, J.P. Dahlhaus, M. Wimmer, A.R. Akhmerov.
Random-matrix theory of Andreev reflection from a topological superconductor
Phys. Rev. B 83, 085413 (2011)
(arXiv:1012.0932v1).
- A.R. Akhmerov, J.P. Dahlhaus, F. Hassler, M. Wimmer, C.W.J. Beenakker
Quantized conductance at the Majorana phase transition in a disordered superconducting wire
Phys. Rev. Lett. 106, 057001 (2011)
(arXiv:1009.5542v3)
2010
- M. Wimmer, A. R. Akhmerov, F. Guinea
Robustness of edge states in graphene quantum dots
Phys. Rev. B 82, 045409 (2010)
(arXiv:1003.4602v1)
- M. Wimmer, A. R. Akhmerov, M. V. Medvedyeva, J. Tworzydlo, C. W. J. Beenakker
Majorana bound states without vortices in topological superconductors with electrostatic defects
Phys. Rev. Lett. 105, 046803 (2010)
(arXiv:1002.3570v2)
- J. Wurm, M. Wimmer, H.U. Baranger und K.Richter
Graphene Rings in Magnetic Fields: Aharonov-Bohm Effect and Valley Splitting
Semicond. Sci. Technol. 25, 034003 (2010)
(arXiv:0904.3182v1)
2009
- C. W. Groth, M. Wimmer, A. R. Akhmerov, J. Tworzydlo, C. W. J. Beenakker
Theory of the topological Anderson insulator
Phys.Rev.Lett. 103, 196805 (2009)
(arXiv:0908.0881v2)
- J. Wurm, M. Wimmer, I. Adagideli, K. Richter, H. U. Baranger
Interfaces Within Graphene Nanoribbons
New J. Phys. 11, 095022 (2009)
(arXiv:0906.4351v2)
- A. Rycerz, P. Recher, M. Wimmer
Conformal mapping and shot noise in graphene
Phys. Rev. B 80, 125417 (2009)
(arXiv:0906.1393v1)
- M. Wimmer und K. Richter
Optimal block-tridiagonalization of matrices for coherent charge transport
J. Comput. Phys. 228, 8548 (2009)
(arXiv:0806.2739v1)
- M. Wimmer, M. Lobenhofer, J. Moser, A. Matos-Abiague, D. Schuh, W. Wegscheider,
J. Fabian, K. Richter, D. Weiss
Tunneling anisotropic magnetoresistance in Fe/GaAs/Au junctions: orbital effects
Phys. Rev. B 80, 121301(R) (2009)
(arXiv:0904.3017v1)
- M. Wimmer, M. Scheid und K. Richter
Spin-polarized quantum transport in mesoscopic conductors: Computational concepts and
physical phenomena
in: Encyclopedia of Complexity and System Science p. 8597 (Springer, New York, 2009) (arXiv:0803.3705v1)
- J. Wurm, A. Rycerz, I. Adagideli, M. Wimmer, K. Richter und H.U. Baranger
Symmetry Classes in Graphene Quantum Dots: Universal Spectral Statistics, Weak
Localization, and Conductance Fluctuations.
Phys. Rev. Lett. 102, 056806 (2009)
( arXiv:0808.1008v1)
2008
- M. Wimmer, I. Adagideli, S. Berber, D. Tomanek und K. Richter
Spin currents in rough graphene nanoribbons: Universal fluctuations
and spin injection
Phys. Rev. Lett. 100, 177207 (2008)
(arXiv:0709.3244v2)
2007
- I. Adagideli, M. Scheid, M. Wimmer, G. E. W. Bauer und K. Richter
Extracting current-induced spins: Spin boundary conditions at narrow Hall contacts
New J. Phys. 9, 382 (2007)
(arXiv:0708.0244v1)
2006
- M. Wimmer, S. V. Nair und J. Shumway
Biexciton recombination rates in self-assembled quantum dots
Phys. Rev. B 16, 165305 (2006)
(arXiv:cond-mat/0512603v1)
- M. Scheid, M. Wimmer, D. Bercioux und K. Richter
Zeeman ratchets for ballistic spin currents
Phys. Status Solidi (c) 3, 4235 (2006)
(arXiv:cond-mat/0607380v2)
Dissertation
Quantum transport in nanostructures: From computational concepts to spintronics in graphene and magnetic tunnel junctions
. Universitätsverlag Regensburg 2009.