A project of the Theoretical Chemical and Quantum Physics Group

## Team

Dr. Jan Jeske, A/Prof. Jared Cole, Prof. Andrew Greentree

## Collaborators

P. Longo: Heidelberg University

K. Busch: TU Berlin

## Brief Project Outline

Quantum optics and condensed-matter are traditionally two separate branches of physics. The former being concerned with the interactions between atoms and photons, the latter with the effects of multi-particle systems in which local and non-local effects are observed. Recently, these two fields have started to overlap, resulting in such concepts as circuit-QED and quantum optics experiments in solid-state systems. We are interested in how quantum optics concepts can be implemented in solid-state systems as well as how condensed-matter effects can be observed in interacting atom-photon systems. Recent work includes:

- The study of "solid-light", the prediction of Mott-Insulator type transitions in systems of coupled photonic cavities and strongly coupled atoms.
- The propagation of excitations in nonlinear photonic cavity systems and their use in simulating classical and quantum optical elements.
- The interaction of coherent and incoherent processes within a Jaynes-Cummings lattice system and the resulting correlated emission.

## Recent Publications

M. Knap, E. Arrigoni, W. von der Linden, J. H. Cole *Emission characteristics of laser-driven dissipative coupled-cavity systems*, Phys. Rev. A **83**, 023821 (2011)

M.I. Makin, Jared H. Cole, Charles D. Hill, Andrew D. Greentree, Lloyd C. L. Hollenberg *Time evolution of the one-dimensional Jaynes-Cummings-Hubbard Hamiltonian*, Phys. Rev. A **80**, 043842 (2009)

A. D. Greentree, C. Tahan, J. H. Cole, L. C. L. Hollenberg *Quantum phase transitions of light*, Nature Physics, **2**, 856 (2006)

For more information about this project, please contact Jared Cole or Andrew Greentree.