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Upcoming Seminars

Wednesday, March 14, 2018
Collective phenomena in coupled quantum emitter systems
Claudiu genes - Max Planck Institute for the Science of Light, Erlangen


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Advanced Instrumentation Seminars (AIS) cover topics of interest to the broad commnunity of experimenters at SLAC. Invited speakers represent all facets of technology related to SLAC research.  more »

Next Seminar:

Collective phenomena in coupled quantum emitter systems

Claudiu genes - Max Planck Institute for the Science of Light, Erlangen

speaker

Wednesday, March 14, 2018

1:30 PM

Kavli Building 3rd Floor Conference Room

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Abstract:

Dynamics in ensembles of quantum emitters (atoms, molecules, ions, Rydberg atoms, quantum dots etc) at low versus high densities can be fundamentally different. As particles get closer together, interactions mediated by the quantum electromagnetic environment start playing an important role both in the coherent (such as dipole-dipole interactions) as well as in the incoherent evolution (super- /subradiance). While the unstructured quantum vacuum already gives rise to collective subradiant and superradiant behavior, even stronger effects can be designed and utilized by the use of engineered environments (optical cavities, optical fibres etc).. This talk will provide an introduction into the topic and a brief review of recent endeavors aimed at i) exploiting inherent collective dynamics to perform more precise frequency measurements in the context of Ramsey interferometry [1], ii) selective and efficient preparation of robust multiparticle entangled states [2], iii) utilizing near effects of interacting emitter ensembles to perform enhanced antiresonance spectroscopy inside optical cavities [3] and iv) enhancing exciton and charge transport and transfer in the context of cavity strong coupling regime [4,5,6].

Speaker's Biography: