| PhD Seminar

Name of the Speaker: Mr. Yash Raj (EE21D409)
Guide: Prof. Bijoy Krishna Das
Venue: ESB-244 (Seminar Hall)
Online meeting link: meet.google.com/ays-avue-dwn
Date/Time: 18th June 2024 (Tuesday), 2:00 PM
Title: Source Integrated Boson Sampling Circuit using Silicon Photonics Technology

Abstract :

Boson Sampling is an intermediate milestone towards universal quantum computers that can be implemented using non-classical photon sources, linear optical interferometer circuits, and single-photon detectors. This can be potentially useful for quantum chemistry, drug discovery, graph optimization problems, and cryptography, etc. Recently, boson sampling circuit implementation has been attempted using silicon photonics technology platform with 12 modes and 4 squeezed sources [1]. However, the photon losses in the circuit was found to be very high. Therefore, loss reduction and compact design of a photonic integrated circuit is essential for implementing boson sampling. Moreover, photon indistinguishability and amount of squeezing are other important metrics to ensure the quantumness of the interference in the unitary circuit. In this seminar, we will discuss boson sampling fundamentals and its recent implementations using silicon photonics technology platform. We will also discuss the experimental challenges that must be overcome to ensure multiphoton quantum interference. Finally, I will present my research objective, silicon photonics technology based boson sampling circuit design and some preliminary research outcomes.