Poincaré sphere Updated +Created
A more photon-specific version of the Bloch sphere.
In it, each of the six sides has a clear and simple to understand photon polarization state, either of:
The sphere clearly suggests for example that a rotational or diagonal polarizations are the combination of left/right with the correct phase. This is clearly explained at: Video "Quantum Mechanics 9b - Photon Spin and Schrodinger's Cat II by ViaScience (2013)".
Scikit-learn Updated +Created
Examples under python/sklearn
. .venv/bin/activate
pip install sklearn matplotlib seaborn
18.783 MIT course Updated +Created
math.mit.edu/classes/18.783, Wow, good slides! Well organized site! This is a good professor! And brutal course. 25 lectures, and lecture one ends in BSD conjecture!
Carl Zeiss AG Updated +Created
Video 1.
Carl Zeiss, Explained by Asianometry (2021)
Source.
Video 2.
How Carl Zeiss Crafts Optics for a $150 Million EUV Machine
. Source. Difficulty: light at those frequencies get absorbed by lenses. So you have to use mirrors instead.
Disk storage Updated +Created
Money creation vs tax Updated +Created
To Ciro Santilli, a key observation is:
The rich are more easily able to avoid the harm than poor and middle-class people [...] they are more likely to have large amounts of non-cash assets to shield themselves from inflation.
Clearly the rich will be much, much more shielded by keeping large parts of their wealth in shares... from this point of view, it is insane to print money!!! Tax the rich instead...
Node.js ORM library Updated +Created
NQIT Updated +Created
Video 1.
Quantum Computing with Networked Ion traps by NQIT (2018)
Source. The video is a bit useless. But it does show the networked approach proposal a little bit. Universal Quantum's homepage particularly rejects that.
Rigetti Computing Updated +Created
Video 1.
Forest: an Operating System for Quantum Computing by Guen Prawiroatmodjo (2017)
Source. The title of the talk is innapropriate, this is a very basic overview of the entire Rigetti Computing stack. Still some fine mentions. Her name is so long, TODO origin? She later moved to Microsoft Quantum: www.linkedin.com/in/gueneverep/.
Beam splitter Updated +Created
Diaphragm (optics) Updated +Created
Frontier (supercomputer) Updated +Created
Kitware Updated +Created
Netron Updated +Created
NISQ algorithm Updated +Created
A quantum algorithm that is thought to be more likely to be useful in the NISQ era of quantum computing.
NP-hard Updated +Created
A problem such that all NP problems can be reduced in polynomial time to it.

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