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SUMMARY:Cascaded quantum systems - strongly correlated transport and remot
 e interactions - Prof. Klemens Hammerer\, Institute for Theoretical Physic
 s\, Leibniz Universität Hannover
DTSTART:20200604T130000Z
DTEND:20200604T140000Z
UID:TALK142819@talks.cam.ac.uk
CONTACT:Katarzyna Macieszczak
DESCRIPTION:When light is coupled sequentially to a chain of atoms - or an
 y other type of scatterer with internal structure - the resulting dynamics
  of the chain of systems is described by the formalism of cascaded quantum
  systems. I will report on recent work on the many-body dynamics of cascad
 ed quantum systems in connection with chains of atoms coupled to a 1D wave
 guide. I will show that even for weakly coupled atoms a strongly correlate
 d photon transport can occur.  The photon correlations result from an inte
 rplay of nonlinearity and coupling to a loss reservoir\, which creates a s
 trong effective interaction between transmitted photons. I also want to ta
 lk about the effective quantum dynamics that can be generated in cascaded 
 systems when the waveguide is looped and coupled more than once to one or 
 more emitters. While the lecture will mainly deal with theoretical aspects
 \, I will also briefly discuss related experimental observations in the gr
 oups of Arno Rauschenbeutel (U Berlin) and Philipp Treutlein (U Basel).\n\
 nReferences:\narXiv:1803.02428 [PRL 121\, 143601 (2018)]\,\narXiv:1910.058
 28\,\narXiv:1901.06891.\n\nExperiments:\narXiv:1911.09701\,\narXiv:2004.14
 424 [Science (May 2020)].
LOCATION:Details of video conferencing will be distributed nearer the time
 .
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