Open AccessPHOTON GENERATION EFFICIENCY AND ENTANGLEMENT IN QUANTUM DOT SYSTEMS
Author(s) -
Ana Predojević
Publication year - 2016
Publication title -
contemporary materials
Language(s) - English
Resource type - Journals
eISSN - 1986-8677
pISSN - 1986-8669
DOI - 10.7251/comen1602162p
Subject(s) - dephasing , excited state , excitation , physics , quantum entanglement , biexciton , photon , quantum dot , atomic physics , atom (system on chip) , quantum , principal quantum number , photon entanglement , quantum mechanics , quantum dissipation , computer science , embedded system
The interest in quantum dots as sources of quantum light is based upon the potential for high photon generation efficiency that originates in their atom-like energy structure. Quantum dots can be excited resonantly and coherently, where generation of photon pairs calls for a specific excitation method of two-photon resonant excitation of the biexciton. Though this method is very efficient, it was very often showing sub-unity excitation efficiency that could be observed, for instance, in the maximum amplitude of the Rabi oscillations. Investigation of the dephasing processes in this excitation technique is of strategic interest for quantum communication technologies.