Michael Wimmer

Personal information

Image 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: Other interests of mine include

Publications

(For citations and references see my Google Scholar profile)

    2017

  1. 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.
  2. 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.
  3. 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).
  4. 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)
  5. 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).
  6. 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).
  7. 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

  8. 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).
  9. 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)
  10. 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

  11. 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).
  12. 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

  13. 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).
  14. I. Adagideli, M. Wimmer, A. Teker.
    Inducing topological order in dirty wires: Majorana fermions from scattering.
    Phys. Rev. B 89, 144506 (arXiv:1302.2612).
  15. 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).
  16. 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

  17. C. W. Groth, M. Wimmer, A. R. Akhmerov, X. Waintal.
    Kwant: a software package for quantum transport.
    arXiv:1309.2926.
  18. 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)
  19. 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).
  20. 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

  21. 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).
  22. 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)
  23. 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).
  24. M. Wimmer.
    Majorana auf Draht
    Physik Journal 06/2012.
  25. 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

  26. 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).
  27. J.-D. Urbina, M. Wimmer, D. Bauernfeind, D. Espitia, I. Adagideli, K. Richter
    Universal spatial correlations in random spinor fields.
    arXiv:1108.2652v1.
  28. 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).
  29. 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).
  30. 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).
  31. 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).
  32. 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

  33. M. Wimmer, A. R. Akhmerov, F. Guinea
    Robustness of edge states in graphene quantum dots
    Phys. Rev. B 82, 045409 (2010) (arXiv:1003.4602v1)
  34. 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)
  35. 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

  36. 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)
  37. J. Wurm, M. Wimmer, I. Adagideli, K. Richter, H. U. Baranger
    Interfaces Within Graphene Nanoribbons
    New J. Phys. 11, 095022 (2009) (arXiv:0906.4351v2)
  38. A. Rycerz, P. Recher, M. Wimmer
    Conformal mapping and shot noise in graphene
    Phys. Rev. B 80, 125417 (2009) (arXiv:0906.1393v1)
  39. M. Wimmer und K. Richter
    Optimal block-tridiagonalization of matrices for coherent charge transport
    J. Comput. Phys. 228, 8548 (2009) (arXiv:0806.2739v1)
  40. 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)
  41. 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)
  42. 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

  43. 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

  44. 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

  45. 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)
  46. 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.