Stefan Walter

Stefan Walter
Experienced Researcher
FAU Erlangen-Nürnberg

Academic background

since 01/2015 – Postdoctoral associate with Florian Marquardt at the University of Erlangen

01/2013 – 12/2014 – Postdoctoral associate with Christoph Bruder at the University of Basel

10/2009 – 12/2012 – Ph.D. in Physics under supervision of Björn Trauzettel at the University of Würzburg

08/2008 – 09/2009 – MA in Physics under supervision of Adam Durst at Stony Brook University

09/2005 – 08/2008 – Studies of Nanoscience and Physics at the University of Würzburg

Current research topic

I am especially interested nonlinear effects in nano-optomechanical systems. The nonlinear interaction between photons and phonons in an optomechanical setup allows us to investigate interesting effects such as synchronization in the quantum regime. I am also interested in introducing novel schemes to enhance the nonlinear optomechanical interaction. Furthermore, hybrid quantum systems interfacing different quantum systems such as for instance optomechanical systems with artificial two-level systems open up new venues which I am interested in.


1. Detecting nonlocal Cooper pair entanglement by optical Bell inequality violation
Simon E. Nigg, Rakesh P. Tiwari, Stefan Walter, and Thomas L. Schmidt.

2. Quantum synchronization of two Van der Pol oscillators
Stefan Walter, Andreas Nunnenkamp, and Christoph Bruder.
Ann. Phys. 527, 131 (2014)

3. Teleportation-induced entanglement of two nanomechanical oscillators coupled to a topological superconductor
Stefan Walter and Jan Carl Budich.
Phys. Rev. B 89, 155431 (2014)

4. Transport properties of double quantum dots with electron-phonon coupling
Stefan Walter, Björn Trauzettel, and Thomas L. Schmidt.
Phys. Rev. B 88, 195425 (2013)

5. Quantum synchronization of a driven self-sustained oscillator
Stefan Walter, Andreas Nunnenkamp, and Christoph Bruder.
Phys. Rev. Lett. 112, 094102 (2014)

6. Entanglement of nanoelectromechanical oscillators by Cooper-pair tunneling
Stefan Walter, Jan Carl Budich, Jens Eisert, and Björn Trauzettel.
Phys. Rev. B 88, 035441 (2013)

7. Failure of protection of Majorana based qubits against decoherence
Jan Carl Budich, Stefan Walter, and Björn Trauzettel.
Phys. Rev. B 85, 121405(R) (2012)

8. Detecting Majorana Bound States by Nanomechanics
Stefan Walter, Thomas L. Schmidt, Kjetil Børkje, and Björn Trauzettel.
Phys. Rev. B 84, 224510 (2011)

9. Momentum and position detection in nanoelectromechanical systems beyond Born and Markov approximations
Stefan Walter and Björn Trauzettel.
Phys. Rev. B 83, 155411 (2011)

10. Bloch oscillations in lattice potentials with controlled aperiodicity
Stefan Walter, Dominik Schneble, and Adam C. Durst.
Phys. Rev. A 81, 033623 (2010)