Skip to ContentSkip to Navigation
OnderzoekVan Swinderen Institute

MSCplus Colloquium Han Woerdman

Roster

WhenWhere
02 March 2006 FWN-Building 5111.0080, Nijenborgh 4, 9747 AG, Groningen
Han Woerdman
Han Woerdman
Speaker: Han Woerdman
Affiliation: Huygens Laboratory, Leiden University
Title: Entangled photons
Date: Thu Mar 2, 2006
Start: 16.00 (Doors open and coffee available at 15.30)
Location: FWN-Building 5111.0080

The quantum nonlocality of two entangled particles, that made Einstein doubt whether quantum mechanics is complete, has in recent years developed into quantum information science. Photons are particularly suitable for experimental tests of entanglement in view of the advanced state of the art of quantum-optics technology. We will demonstrate this with some examples taken from our recent work on photonic entanglement:

(i)                Scattering of entangled photons by a 2D plasmonic crystal

(ii)              Scattering of entangled photons by a random medium

(iii)            Very-high-dimensional entanglement of two photons

The common aspect here is the key role played by the spatial degrees of freedom of the photons. Possible applications of photonic entanglement are in quantum communication, e.g. in quantum cryptography (already commercially available) or in connecting two quantum computers (in the future).
Emission pattern generated in the nonlinear optical process of Spontaneous Parametric Down Conversion. Polarization-entangled photon pairs are produced in the regions where the two rings cross.
Emission pattern generated in the nonlinear optical process of Spontaneous Parametric Down Conversion. Polarization-entangled photon pairs are produced in the regions where the two rings cross.
Last modified:12 September 2014 11.22 a.m.