Energy Transfer and Quantum Correlations in Cavity-Embedded Donor-Acceptor Configurations (Master Thesis Defence)

23.02.2018, 11:30


Organiser:

Max Planck Institute for the Science of Light, Genes Research Group

Speaker:
Michael Reitz, MPL

Time, place:
Friday, 23 February 2018, 11:30 h, MPL, Seminar Room A.1.406 (to move to A.1.500 in case of unexpected larger audience)

Abstract:
The aim of this thesis is to investigate dipole-dipole mediated (Förster-type)
energy transfer in free space as well as in a cavity QED scenario. We show that
the rate of energy transfer in donor-acceptor systems can be manipulated via the
common interaction with the confined electromagnetic modes of a micro-cavity.
We consider various scenarios characterized by different internal structures of the
systems considered. In a microscopic picture involving effective two-level quantum
emitters, we analyze the competition between the near-field short range dipoledipole
energy exchange processes and the cavity mediated long-range interactions.
We find that free-space collective incoherent interactions, typically associated with
sub- and superradiance, can modify the distance scaling of the traditional resonant
energy transfer. The same holds true for cavity-mediated collective incoherent
interactions in a weak-coupling strong-cooperativity regime. We find regimes where
strong cooperativity and strong coupling can have an imprint on the energy transfer
efficiency and quantify the build-up of quantum correlations in the donor-acceptor
system via the two-qubit concurrence and logarithmic negativity for continuous
variables.

[1] M. Reitz, F. Mineo, and C. Genes. 'Energy transfer and correlations in cavityembedded
donor-acceptor configurations'. arXiv e-prints: 1802.00648, (2018).