Raimar Sandner
Early Stage Researcher

Institut für Theoretische Physik
Innsbruck, Austria

Academic Background

I studied physics at the University of Freiburg where I graduated 2010. For my diploma thesis, which was co-supervised by Andreas Buchleitner (Freiburg) and Peter Zoller (Innsbruck), I investigated a theory on the suppression of spontaneous emission by fermionic atoms under the condition of very tight trapping in optical lattices. In 2011 I joined the Quantum Optics Theory Group of Helmut Ritsch, where I am currently working as a PhD Student.

Description of work

In the Quantum Optics Theory Group in Innsbruck I am working on a project to investigate  polarizable point particles moving in optical resonators. In such a setup the backaction of the particles on the trapping light fields leads to rich coupled dynamics with phenomena like self-organization, atom-field or atom-atom entanglement and long-range interactions. Besides analytical approaches, numerical simulations are used to  investigate  and test the underlying theoretical models. One important tool in this context is C++QED, a framework which is developed in our group and the Budapest Quantum Optics Group, and which is able to simulate open quantum dynamics with many quantum degrees of freedom. In particular, my goal is to gain new insights into systems that involve a ring cavity in contrast to a standing wave cavity, and to help with the ongoing development of CCQED.

Publications

C++QEDv2 Milestone 10: A C++/Python application- programming framework for simulating open quantum dynamics
R. M. Sandner, A. Vukics
Computer Physics Communications 185, 2380 (2014)

Subrecoil cavity cooling towards degeneracy: A numerical study
R. M. Sandner, W. Niedenzu, H. Ritsch
Europhysics Letters 104, 43001 (2013)

Quantum-correlated motion and heralded entanglement of distant optomechanically coupled objects
W. Niedenzu, R. M. Sandner, C. Genes, H. Ritsch
J. Phys. B: At. Mol. Opt. Phys. 45, 245501 (2012)

Spatial Pauli blocking of spontaneous emission in optical lattices
R. M. Sandner, M. Müller, A. J. Daley, P. Zoller
Physical Review A 84, 043825 (2011).