Homepage Georg Heinrich

From Institute for Theoretical Physics II / University of Erlangen-Nuremberg

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I studied physics at the Ludwig-Maximilians-University (LMU) where I received a diploma degree in 2007. My thesis was concerned with current transport and noise properties of Josephson junctions like they are used to build superconducting quantum bits. This research was done in the group of Frank Wilhelm at the Institute for Quantum Computing (IQC) where I spend the last year of my studies.

In August 2008 I joined the group of Florian Marquardt at the Chair for Theoretical Solid State Physics LMU and started working towards my PhD on optomechanical systems affiliated with the Center for NanoScience (CeNS), the Nanosystems Initiative Munich (NIM) and the Arnold Sommerfeld Center for Theoretical Physics (ASC). In March 2010 Florian Marquardt moved to head the Institute for Theoretical Physics II at the University of Erlangen-Nuremberg (FAU).

I finished my PhD in October 2011. The thesis entitled "Nanomechanics interacting with light: Dynamics of coupled multimode optomechanical systems" can be downloaded here: PhD thesis Heinrich at University Library Erlangen-Nürnberg


Research

Nanotechnology has enabled to design micro- and nanoscale devices whose mechanical motion can interact with light. These optomechanical systems have been the focus of considerable experimental and theoretical research during the past few years.

For instance, optomechanical systems are used to build ultrasensitive force and displacement sensors to perform precision measurements that are able to test fundamental concepts in various fields of research. Further prospects are to use mechanical motion as universal coupling scheme to connect miscellaneous hybrid components (such as spins, photons, superconducting quantum bits, cold atoms, etc.) or to fabricate integrated optomechanical circuits that might be used for classical and quantum information processing, amplification and storage.

With respect to fundamental questions, laser cooling of nanomechanical oscillators to the quantum ground state promises novel tests of quantum mechanics in a new regime of large-scale structures. Goals range from observing quantum dynamics in the mechanics, creating entanglement between light and mechanical degrees of freedom, realizing non-classical states, to finally controlling and manipulating the quantum state of mechanical motion.

In particular I am interested in the dynamics of optomechanical multi-mode systems and integrated on-chip devices - see publications below. For a brief introduction to optomechanics, watch the talk of Florian Marquardt at the special APS Trends Session 2010.


Publications

  • Collective dynamics in optomechanical arrays

Georg Heinrich, Max Ludwig, Jiang Qian, Björn Kubala, Florian Marquardt, Phys. Rev. Lett. 107, 043603 (2011) Journal PDF Cite


  • The effect of Landau-Zener dynamics on phonon lasing

Huaizhi Wu, Georg Heinrich and Florian Marquardt, arXiv:1102.1647 Journal PDF Cite


  • Coupled multimode optomechanics in the microwave regime

Georg Heinrich and Florian Marquardt, Europhys. Lett. 93, 18003 (2011) Journal PDF Cite


  • Dynamics of coupled multimode and hybrid optomechanical systems

Georg Heinrich, Max Ludwig, Huaizhi Wu, K. Hammerer and Florian Marquardt, C. R. Physique 12, 837 (2011) Journal PDF


  • Examples of Quantum Dynamics in Optomechanical Systems

Max Ludwig, Georg Heinrich and F. Marquardt; in Quantum Communication and Quantum Networking (Springer 2010); proceedings of QuantumComm 2009; Journal Cite


  • The photon shuttle: Landau-Zener-Stueckelberg dynamics in an optomechanical system

Georg Heinrich, J. G. E. Harris, Florian Marquardt, Phys. Rev. A 81, 011801(R) (2010) Journal PDF Cite


  • Current fluctuations in rough superconducting tunnel junctions

Georg Heinrich, F. K. Wilhelm, Phys. Rev. B 80, 214536 (2009) Journal PDF


Contact

Institute for Theoretical Physics II, University of Erlangen-Nuremberg, Staudtstrasse 7, 91058 Erlangen, Germany

Tel. +49-9131-85-28458 Write an email