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.

Publications

1. Detecting nonlocal Cooper pair entanglement by optical Bell inequality violation
Simon E. Nigg, Rakesh P. Tiwari, Stefan Walter, and Thomas L. Schmidt.
arxiv:1411.3945

2. Quantum synchronization of two Van der Pol oscillators
Stefan Walter, Andreas Nunnenkamp, and Christoph Bruder.
Ann. Phys. 527, 131 (2014)
arXiv:1406.7134

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)
arXiv:1311.2765

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)
arXiv:1309.6729

5. Quantum synchronization of a driven self-sustained oscillator
Stefan Walter, Andreas Nunnenkamp, and Christoph Bruder.
Phys. Rev. Lett. 112, 094102 (2014)
arXiv:1307.7044

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)
arXiv:1210.0665

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)
arXiv:1111.1734

8. Detecting Majorana Bound States by Nanomechanics
Stefan Walter, Thomas L. Schmidt, Kjetil Børkje, and Björn Trauzettel.
Phys. Rev. B 84, 224510 (2011)
arXiv:1108.2607

9. Momentum and position detection in nanoelectromechanical systems beyond Born and Markov approximations
Stefan Walter and Björn Trauzettel.
Phys. Rev. B 83, 155411 (2011)
arXiv:1012.4649

10. Bloch oscillations in lattice potentials with controlled aperiodicity
Stefan Walter, Dominik Schneble, and Adam C. Durst.
Phys. Rev. A 81, 033623 (2010)
arXiv:0911.1108

Partners