For high security quantum cryptography electrically triggered single or entan-gled photon sources are needed. In addition the mass market requires effi-cient, electrically driven, high-speed devices. Common growth and pro-cessing techniques are used to fabricate single photon sources which either generate polarization entangled photon pairs or polarization controlled single photons. This offers the opportunity for quantum cryptography with single photons or entangled photon pairs.</p> <p><!--break--></p> <p class="MsoNormal" style="margin-bottom: 0.0001pt;"><strong>Technology</strong><br> We offer a method for producing a single or entangled photon source, which can be carried out in a simple and reproducible manner. This novel method enables the production of a compact single photon source which can emit defined linearly polarized single photons, transposed photon pairs or cas-cades of correlated photons. The fine structure splitting of the exciton energy level of a quantum dot (QD) is dependent on material strains. It is the invention to selectively establish the degree of strain within the quantum dots and within the surrounding material structure by the choice of the QD size.<br> <br>
firstname.lastname@example.org | TechnologieAllianz e.V.
Dosing system of bulk material (granulates) for expansion injection molding
19.01.2017 | TechnologieAllianz e.V.
Efficient method for Chain Multiplication of unsaturated fatty acids - synthesis of ultra long-chain compounds
18.01.2017 | TechnologieAllianz e.V.
An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
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