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Quantum molecules interfacing random universe

Posted on 14/11/2014
light-matter

Interaction between light-matter is one of the most fundamental natural processes, which makes us see things and even holds the molecules of our bodies together, owning to vacuum fluctuations on a quantum level. The intriguing field of quantum electrodynamics deals with those fundamentally important investigations, yet on the few particles level. Enlarging and advancing its tools will enable quantitatively addressing span of intriguing phenomena of high complexity. 

Dr Pavel Ginzburg, Dr Alexey V. Krasavin, Prof David Richards, and Prof Anatoly V. Zayats from the Experimental Biophysics & Nanotechnology research group in the Department of Physics at King’s College London made a step towards the understanding of light-emission dynamics, affected by unpredictable environment. Their paper on: ‘Impact of nonradiative line broadening on emission in photonic and plasmonic cavities’ has been published in Physical Review A. The research focuses on combining stochastic approaches of statistical physics with the framework of cavity quantum electrodynamics. The scientists have developed a dynamical description of interaction between single emitter (e.g. small florescent molecule) and macroscopic fluctuating world. The controversy of nonradiative line broadening (the quality measure of the light source) impact on purity of quantum states of photons was resolved, on the way for understanding complex photonic processes.

If you would like any further information, please contact Dr Pavel Ginzburg on: pavel.ginzburg@kcl.ac.uk

 

 

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