CO.CO.MAT (2005-2017)
Control of Quantum Correlations in Tailored Matter
SFB/TRR 21 - Stuttgart, Ulm, Tübingen
 © Universität Stuttgart | Impressum

Project C12:
Strongly interacting single photons in an ultra-cold Rydberg gas (2013-2017)

Strongly interacting single photons in an ultra-cold Rydberg gas


Few-photon nonlinearities enable fundamental building blocks for photonic quantum information processing, such as a deterministic single-photon source and a quantum phase gate, as well as the realization of mesoscopic systems of interacting photons. In this project, we will realize such nonlinearities by by mapping quantum correlations between strongly interacting atoms inside an ultra-cold gas onto single photons. This interface between quantum states of light and strongly correlated quantum media opens a new research field beyond classical nonlinear optics.

Project leaders

Dr. Sebastian Hofferberth, University of Southern Denmark

Refs & Publications

S. Weber, C. Tresp, H. Menke, A. U. Firstenberg, H. P. Büchler and S. Hofferberth
"TUTORIAL: Calculation of Rydberg interaction potentials"
J. Phys. B: At. Mol. Opt. Phys. 50 133001 (2017); doi: 10.1088/1361-6455/aa743a

C. Tresp, C. Zimmer, I. Mirgorodskiy, H. Gorniaczyk, A. Paris-Mandoki, S. Hofferberth
"Single-photon absorber based on strongly interacting Rydberg atoms"
Phys. Rev. Lett. 117, 223001 (2016); doi: 10.1103/PhysRevLett.117.223001

A. Paris-Mandoki, H. Gorniaczyk, C. Tresp, I. Mirgorodskiy, S. Hofferberth
"Tailoring Rydberg interactions via Förster resonances: state combinations, hopping and angular dependence"
J. Phys. B: At. Mol. Opt. Phys. 49 164001 (2016); doi: 10.1088/0953-4075/49/16/164001

H. Gorniaczyk, C. Tresp, P. Bienias, A. Paris-Mandoki, W. Li, I. Mirgorodskiy. H. P. Büchler, I. Lesanovsky, S. Hofferberth
"Enhancement of single-photon transistor by Stark-tuned Förster resonance"
Nature Communications 7, 12480 (2016); doi: 10.1038/ncomms12480

C. Tresp, P. Bienias, S. Weber, H. Gorniaczyk, I. Mirgorodskiy, H. P. Büchler, S. Hofferberth
"Dipolar dephasing of Rydberg D-state polaritons"
Phys. Rev. Lett. 115, 083602 (2015); arXiv:1505.03723; doi: 10.1103/PhysRevLett.115.083602

H. Gorniaczyk, C. Tresp, J. Schmidt, H. Fedder, and S. Hofferberth
"Single Photon Transistor Mediated by Inter-State Rydberg Interaction"
Phys. Rev. Lett. 113, 053601 (2014), arXiv:1404.2876v2 [quant-ph]; doi: 10.1103/PhysRevLett.113.053601