<div class="csl-bib-body">
<div class="csl-entry">Rabl, P. (2022, March 24). <i>Non-perturbative (cavity) QED,</i> [Presentation]. Colloquium, University of Crete, Heraklion, Greece. http://hdl.handle.net/20.500.12708/152946</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/152946
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dc.description.abstract
The structure of atoms, molecules and solids is mainly determined by static Coulomb forces, while the coupling to the quantized degrees of freedom of the electromagnetic field plays only a secondary role. Recently, it has been speculated that this general rule can be overcome in the context of cavity quantum electrodynamics (QED), where the coupling of dipoles to a single field mode can exceed the bare energy of the photon itself. Under these conditions, light-matter interactions become non-perturbative, as characterized by an effective fine-structure constant of order unity. In this seminar I will give a basic introduction to this extreme coupling regime of cavity QED and explain how vacuum-induced many-body effects can lead to novel ground state phases in QED, which are the opposite of what has been assumed so far. Beyond a purely fundamental interest, these general mechanisms can be important for potential applications, ranging from cavity-assisted chemistry to quantum technologies based on ultrastrongly coupled circuit QED systems.
en
dc.language.iso
en
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dc.subject
The structure of atoms, molecules and solids
en
dc.title
Non-perturbative (cavity) QED,
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.type.category
Presentation
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tuw.researchTopic.id
C6
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tuw.researchTopic.name
Modeling and Simulation
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tuw.researchTopic.value
100
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tuw.publication.orgunit
E141-08 - Forschungsbereich Quantum Optics and Quantum Information
