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Quantum technologies

Dieter Meschede's research group
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Intensive week: Introduction to topological insulators and their implementations in artificial matter setups

The intensive week consists of lectures introducing graduate students to the very active research field of topological insulators. Participants are required to have good knowledge of basic quantum mechanics and familiarity with basic concepts in condensed matter physics (Bloch theorem, energy bands, etc.). No prior knowledge of topology is assumed.

The main body of the intensive week is a course held by J. K. Asbóth, based on the lecture notes “A Short Course on Topological Insulators”, freely available at https://arxiv.org/abs/1509.02295. Through simple one- and two-dimensional model Hamiltonians, participants will acquire a good physical understanding of the core concepts of topological insulators. This is complemented by A. Alberti, presenting a selection of modern experiments demonstrating topological effects in ultracold atoms and nanophotonics setups. Additionally, guest speakers will give an introduction to “frontier” research topics in this field. The course will be accompanied by laboratory tours, exercise and interactive discussion sessions in the afternoon.


Atoms can be in two places at the same time

Can a penalty kick simultaneously score a goal and miss? For very small objects, at least, this is possible: according to the predictions of quantum mechanics, microscopic objects can take different paths at the same time. The world of macroscopic objects follows other rules: the football always moves in a definite direction. But is this always correct? Physicists of the University of Bonn have constructed an experiment designed to possibly falsify this thesis (view the scientific publication). Their first experiment shows that Caesium atoms can indeed take two paths at the same time. Read more...

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Workshop on "Discrete and Analogue Quantum Simulators"

Flyer 553. WE-Heraeus Workshop

We are glad to announce the 553. WE-Heraues workshop on "Discrete and Analogue Quantum Simulators", which will be held in the conference center Physikzentrum Bad Honnef on 10-12 of February 2014.  

For more information please visit the workshop website. We invite students, postdocs and interested scientists to submit an application. The deadline for registration is December 15th, 2013. The number of particants is limited to about 65. We encourage PhD students, postdocs and young researchers working in the field to apply.


Humboldt Award Winners' Forum 2013

Alexander von Humboldt Forum on the frontiers in Quantum Optics

Frontiers in Quantum Optics: Taming the World of Atoms and Photons – 100 Years after Niels Bohr

A special event will take place in Bonn to gather the Humboldt Award Winners in the field of atomic, molecular and optical physics. The scientific program exhibits a list of renowned speakers, which includes the Nobel Laureates Prof. Wolfgang Ketterle and Prof. Serge Haroche. Participation is by invitation only.


Vorstellung des Nobelpreises 2012

Poster of the FOR635 Workshop 2012

Ist der Mond auch da, wenn man nicht hinsieht? Von der Paul-Falle zu Schrödingers Katze.

Anlässlich der Verleihung des Nobelpreises in Physik 2012 an Serge Haroche und David Wineland wird Prof. Meschede die damit gewürdigten Forschungsarbeiten in einem öffentlichen Vortrag vorstellen. Alle Studierenden, Mitarbeiter der physikalischen Institute und an der Physik Interessierten sind herzlich eingeladen. 

Der Vortrag findet am 31. Oktober 2012 um 16:00 Uhr im Wolfgang-Paul-Hörsaal statt.

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