Exploring matter-wave emission phenomena in optical lattices (Prof. Dominik Schneble)
Exploring matter-wave emission phenomena in optical lattices
- Date: Jun 11, 2019
- Time: 02:30 PM (Local Time Germany)
- Speaker: Prof. Dominik Schneble
- Stony Brook University, New York, USA
- Location: Max Planck Institute of Quantum Optics
- Room: Herbert Walther Lecture Hall
In my talk,
I will describe our recent studies* of spontaneous emission in a novel
context** that allowed us to go beyond the model's usual assumptions. For this
purpose, we created an array of microscopic atom traps in an optical lattice
that emit single atoms, rather than single photons, into the surrounding
vacuum. Our ultracold system, which provides a tunable matter-wave analog of
photon emission in photonic bandgap materials, revealed behavior beyond
standard exponential decay with its associated Lamb shift. It includes partial
backflow of radiation into the emitter, and the formation of a long-predicted
bound state in which the emitted particle hovers around the emitter in an
evanescent wave. My talk will conclude with an outlook on using our new platform
for studies of dissipative many-body physics and matter-wave quantum optics in
optical lattices.
* L. Krinner et al., Nature 559, 589 (2018); M. Stewart et al, PRA
95, 013626 (2017)
** I. de Vega, D. Porras, J. I. Cirac, PRL 101, 260404 (2008)