We welcome Debanuj Chatterjee to our group! Coming from Kolkata he joins our group for three months, funded by the WISE exchange program.
We have realized a deterministic single-photon absorber
based on the strong Rydberg-Rydberg interactions.
Check out the preprint we have put on the arxiv!
Single-photon absorber based on strongly interacting Rydberg atoms
We have written a short theory paper about Rydberg interactions on a Förster resonance. Based on our experimental paper measuring the properties of the optical transistor on electric field tuned Förster resoannces, we discuss the influence of different state combinations on interaction srength, hopping and angular dependence.
Take a read here
We welcome Yanli Zhou to our group! As Lecturer for theoretical physics at the National University of Defense Technology, she is staying as a guest research with us for one year to work on the theory of Rydberg EIT.
We are very happy to present our latest work on the single photon transistor! With experimental efforts on the implementation of electric field control, we were able to substantially enhance the transistor tuning it on a Förster resonance. At the same time, the system incorporates a pair state spectroscopy method. Thanks to our theory collaborators Przemek Bienias and Hans Peter Büchler, we can nicely model the source polariton propagation through a gate excitation. We further study the coherence properties of the gate spin-wave and find very good agreement with theory developed by Weibin Li and Igor Lesanovsky.
Find our results here: arXiv:1511.09445
Our work on “Dipolar dephasing of Rydberg D-states polaritons” was now published in PRL!
Check it out here!
We’d like to advertise our contributions at the DPG meeting in Heidelberg
|Talk by Christoph on:
Dipolar Dephasing of Rydberg D-state Polaritons
|Friday, March 27, 2015, 15:00–15:15,
P/H2, Q 76.3
|Talk by Hannes on:
Single-Photon Transistor Mediated by
Interstate Rydberg Interactions
|Friday, March 27, 2015, 15:45-16:00,
P/H2, Q 76.6
|Poster by Ivan on:
Rydberg quantum optics in ultracold gases
|Thursday, March 26, 2015, 17:00–19:00,
C/Foyer, Q 62.4
We look forward to meeting you.
- Our first publication is published on PRL:
- H. Gorniaczyk, C. Tresp, J. Schmidt, H. Fedder, and S. Hofferberth,
Single-Photon Transistor Mediated by Interstate Rydberg Interactions
- Phys. Rev. Lett. 113, 053601,
- DOI: 10.1103/PhysRevLett.113.053601
- It is an Editor’s Suggestion and featured in a Physics Viewpoint:
- Optical Transistor Flips On with One Photon,
- DOI: 10.1103/Physics.7.80