Non-polar nitride single-photon sources

Single Photon Sources

Single and Entangled Photon Sources

This paper explores the fundamentals and applications of single and entangled photon sources. These sources are the ground works for advances in quantum communications, ranging from quantum cryptography to topics as peculiar as quantum teleportation. Single Photon Sources I. What is a Single Photon Source? A single photon source is an emitter of light that has all of its photons separated in ti...

Single and Entangled Photon Sources

The possibility of totally secure communication through the application of quantum mechanical properties was introduced in 1984 by Bennett and Brassard in their paper, “Quantum Cryptography: Public Key Distribution and Coin Tossing”. As Bennett and Brassard outlined, quantum communication makes it impossible for an eavesdropper to intercept a message without detection by the desired parties. Th...

Scattering by polar optical phonons in nitride single heterostructures

The scattering rates due to the interaction between conduction band electrons and polar optical phonons are calculated in a single heterostructure of the AlxGa1−xN prototype. Optical phonon modes are described via the dielectric continuum model for the case of the wurtzite crystal structure, taking into account both interface and half-space oscillations. Electronic states in the two-dimensional...

Heralded single-photon generation using imperfect single-photon sources and a two-photon-absorbing medium

X iv :q ua nt -p h/ 05 10 11 3 v3 22 M ar 2 00 6 Heralded single-photon generation using imperfect single-photon sources and a two-photon-absorbing medium Thomas Konrad∗, Artur Scherer, Michael Nock, and Jürgen Audretsch Fachbereich Physik, Universität Konstanz, D-78457 Konstanz, Germany Abstract We propose a setup for a heralded, i.e. announced generation of a pure single-photon state given tw...