Here is a vendor showcasing their device. They claim in that video that a single photon is produced and detected:

Concrete device described at: Video "How to use an SiPM - Experiment Video by SensLTech (2018)".

The basic experiment for a photonic quantum computer.

Can be achieved in two ways it seems:

Animation of Hong-Ou-Mandel Effect on a silicon like structure by Quantum Light University of Sheffield (2014): www.youtube.com/watch?v=ld2r2IMt4vg No maths, but gives the result clear: the photons are always on the same side.

A squeezed coherent state of light.

Can be approximated with a diaphragm.

Funding:

This section discusses the pre-photon understanding of the polarization of light. For the photon one see: photon polarization.

polarization.com/history/history.html is a good page.

People were a bit confused when experiments started to show that light might be polarized. How could a wave that propages through a 3D homgenous material like luminiferous aether have polarization?? Light would presumably be understood to be analogous to a sound wave in 3D medium, which cannot have polarization. This was before Maxwell's equations, in the early 19th century, so there was no way to know.

A device that modifies photon polarization.

As mentioned at Video "Quantum Mechanics 9b - Photon Spin and Schrodinger's Cat II by ViaScience (2013)", it can be modelled as a bra.

Good overgrown section in the middle of Fresnel's biography: en.wikipedia.org/w/index.php?title=Augustin-Jean_Fresnel&oldid=1064236740#Historical_context:_From_Newton_to_Biot.

Particularly cool is to see how Fresnel fully understood that light is somehow polarized, even though he did not know that it was made out of electromagnetism, clear indication of which only came with the Faraday effect in 1845.

spie.org/publications/fg05_p03_maluss_law:

Matches the quantum superposition probability proportional to the square law. Poor Étienne-Louis Malus, who died so much before this was found.

Experimental computer networks refer to specialized networks designed primarily for research and experimentation purposes. These networks allow researchers and engineers to test new networking technologies, protocols, and techniques in a controlled environment before deploying them in real-world scenarios. Here are some key aspects of experimental computer networks: 1. **Research and Development**: Experimental networks provide a platform to explore new concepts in networking, such as protocol development, network architecture, performance measurement, and security mechanisms.

Renata Mansini is not a widely recognized public figure or concept as of my last knowledge update in October 2023. It's possible that she is a private individual, an emerging figure in a specific field, or relates to a more niche topic.

A Zero Shadow Day occurs when the sun is directly overhead at noon, resulting in no shadow being cast by objects on the ground. This phenomenon happens twice a year for locations between the Tropic of Cancer and the Tropic of Capricorn, depending on the latitude of the location. On Zero Shadow Day, when the sun reaches its zenith, vertical objects such as poles and trees have no shadow.

An impact event refers to a phenomenon in which a celestial object, such as an asteroid or comet, collides with a planet, moon, or other astronomical body. These events can have significant consequences, including massive explosions, the creation of craters, and potentially catastrophic effects on the environment and life forms. Impact events are classified based on various factors, including the size of the impacting object, the speed of the impact, and the location of the collision.