High-Dimension Quantum Key Distribution

Seminar
Speaker
Prof. Daniel J. Gauthier
Date
07/09/2015 - 13:30Add to Calendar 2015-09-07 13:30:00 2015-09-07 13:30:00 High-Dimension Quantum Key Distribution The field of quantum information science aims to leverage the properties of quantum mechanics to realize new approaches for computing and communication.  In this presentation, I will review the basic building blocks of a classical optical communication system.  From there, I will describe a communication system in which the photonic wavepackets have less than one photon - and hence entering the quantum regime.  Surprisingly,  the number of bits that can be encoded on a single quanta is nearly limitless.  I will show how this property, along with the indistinguishability of certain quantum states, can be used to realize a quantum communication system for sharing a secret key between two parties.  This system is secure against an attack by an eavesdropper due to the fundamental properties of quantum mechanics. Resnick Building (209), seminar room 210 Department of Physics physics.dept@mail.biu.ac.il Asia/Jerusalem public
Place
Resnick Building (209), seminar room 210
Abstract

The field of quantum information science aims to leverage the properties of quantum mechanics to realize new approaches for computing and communication.  In this presentation, I will review the basic building blocks of a classical optical communication system.  From there, I will describe a communication system in which the photonic wavepackets have less than one photon - and hence entering the quantum regime.  Surprisingly,  the number of bits that can be encoded on a single quanta is nearly limitless.  I will show how this property, along with the indistinguishability of certain quantum states, can be used to realize a quantum communication system for sharing a secret key between two parties.  This system is secure against an attack by an eavesdropper due to the fundamental properties of quantum mechanics.

Last Updated Date : 23/08/2015