Q Seminar - Maxim Vavilov

Event Date: 

Tuesday, March 25, 2014 - 2:30pm to 4:00pm

Event Location: 

  • 2250 Elings Hall

Event Price: 


Event Contact: 

Sean Fraer
Email: seanfr@microsoft.com
Phone: 805-893-8818
Website: Click to Visit

Speaker: Maxim Vavilov ??" U. Wisconsin - Madison

Title: Counting Statistics of Photons Emitted by a Double Quantum Dot


We study the full counting statistics of photons emitted by a double quantum dot in the Coulomb blockade regime at finite electric bias. For this purpose, we construct the cumulant generating function and calculate the probability distribution function of the number of emitted photons per time interval. We show that in the absence of electron relaxation the photon statistics exhibits both a sub-Poissonian distribution and antibunching and the photon noise is reduced below one-half of the noise for the Poisson distribution. In the presence of dissipation, the noise increases, the intensity correlation function approaches that of a thermal black--body radiation and the photon distribution eventually becomes a super-Poissonian. We also discuss cross correlations in the photon emission and electron charge transfer through the double quantum dot.