08 خرداد 1403
محمدرضا محبي فر

محمدرضا محبی فر

مرتبه علمی: دانشیار
نشانی: ملایر، کیلومتر 4 جاده اراک، دانشگاه ملایر، دانشکده علوم پایه، گروه فیزیک
تحصیلات: دکترای تخصصی / فیزیک-اپتیک
تلفن: +988132355404
دانشکده: دانشکده علوم پایه

مشخصات پژوهش

عنوان
Study of the Purcell Factor of a Single Photon Source Based on Quantum Dot Nanostructure for Quantum Computing Applications
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
Energy eigenvalues, Micro-cavity, Microlaser, Purcell factor, Quantum efficiency
سال
2021
مجله Journal Of Optoelectronical Nanostructures
پژوهشگران محمدرضا محبی فر

چکیده

Single photon sources are the basis of quantum computing. An optical system including a quantum dot (QD) within the micro-pillar cavity can be a candidate for high quality single photon source. Here, the vacuum Rabi splitting (VRS) of this optical system for different situations was studied. The coupling constant threshold of this Single photon source to start VRS, was calculated for each of these situations. Then, given that the Purcell factor threshold for using single photon source pulses in linear optics quantum computing is , Purcell factor behavior of this single photon source including a QD with FWHM of 5μeV, was studied. The results showed that to use the single photon pulses of this system in quantum computation ( ), the FWHM of micropillar cavity must be less than 100μeV. Also, for cavities with normal FWHM range, if coupling constant is greater than 50μeV, then and therefore its single photons can be used for quantum computing.