Diameter Updated 2025-07-16
Diffraction limit Updated 2025-07-16
Digital currency Updated 2025-07-16
Digital electronics Updated 2025-07-16
Digital micromirror device Updated 2025-07-16
The Insane Engineering of DLP by Zack Freedman (2022)
Source. Digital-to-analog converter Updated 2025-07-16
Dildo Updated 2025-07-16
Dilution refrigerator Updated 2025-07-16
Reaches 2 mK[ref]. youtu.be/upw9nkjawdy?t=487 from Video "Building a quantum computer with superconducting qubits by Daniel Sank (2019)" mentions that 15 mK are widely available.
Used for example in some times of quantum computers, notably superconducting quantum computers. As mentioned at: youtu.be/uPw9nkJAwDY?t=487, in that case we need to go so low to reduce thermal noise.
Dilution refrigerator manufacturer Updated 2025-07-16
Diminutive Updated 2025-07-16
Avogadro project Updated 2025-07-16
Diode Updated 2025-07-16
Ideally can be thought of as a one-way ticket gate that only lets electrons go in one direction with zero resistance! Real devices do have imperfections however, so there is some resistance.
First they were made out of vacuum tubes, but later semiconductor diodes were invented and became much more widespread.
awk Updated 2025-07-16
Largest programs ever written:
AWS Deep Learning Base GPU AMI (Ubuntu 20.04) Updated 2025-07-16
These come with pre-installed drivers, so e.g. nvidia-smi just works on them out of the box, tested on g5.xlarge which has an Nvidia A10G GPU. Good choice as a starting point for deep learning experiments.
Axle Updated 2025-07-16
Axon Updated 2025-07-16
B3 Oxford physics course Updated 2025-07-16
users.physics.ox.ac.uk/~lvovsky/B3/ contain assorted PDFs from between 2015 and 2019
Syllabus reads:
- Multi-electron atoms: central field approximation, electron configurations, shell structure, residual electrostatic interaction, spin orbit coupling (fine structure).
- Spectra and energy levels: Term symbols, selection rules, X-ray notation, Auger transitions.
- Hyperfine structure; effects of magnetic fields on fine and hyperfine structure. Presumably Zeeman effect.
- Two level system in a classical light field: Rabi oscillations and Ramsey fringes, decaying states; Einstein
- A and B coefficients; homogeneous and inhomogeneous broadening of spectral lines; rate equations.
- Optical absorption and gain: population inversion in 3- and 4-level systems; optical gain cross section; saturated absorption and gain.
Professor in 2000s seems to beBut as of 2023 marked emeritus, so who took over?
- en.wikipedia.org/wiki/Paul_Ewart. He actually fought not to be dismissed by age and won!
- www.physics.ox.ac.uk/our-people/ewart
Ewart is actually religious:This dude is pure trouble for Oxford!
- www.youtube.com/watch?v=aulL-Qa65i0 Paul Ewart, Chance, Science and Spirituality by Faraday Institute for Science and Religion. Oh, he is/was actually chairman of that crap
- www.youtube.com/watch?v=PVX2F4XvGYo Chaos and the Character of God by Prof. Paul Ewart
Undated materials Ewart:
- users.physics.ox.ac.uk/~ewart/index.htm
- users.physics.ox.ac.uk/~ewart/Atomic%20Physics%20lecture%20notes%20C%20port.pdf
- slides: users.physics.ox.ac.uk/~ewart/Atomic%20Physics%20Lecture%20PPT%20slides%201_8.pdf. Also under: www2.physics.ox.ac.uk/sites/default/files/2011-10-19/atomic_physics_lectures_1_8_09_pdf_pdf_18283.pdf. The course was previously B1, they just change the IDs randomly from time to time to fit the B1-7 numbering.
Bimatrix game Updated 2025-07-16
B4 Oxford physics course Updated 2025-07-16
www-pnp.physics.ox.ac.uk/~barra/teaching.shtml As of 2023, contains some good 2015 materials: web.archive.org/web/20220525094139/http://www-pnp.physics.ox.ac.uk/~barra/teaching.shtml It was called "Subatomic physics" back then.
2015 professor: Alan J. Barr.
Possible 2022 professor: Guy Wilkinson (unconfirmed): www.chch.ox.ac.uk/staff/professor-guy-wilkinson
B6 Oxford physics course Updated 2025-07-16
users.ox.ac.uk/~corp0014/B6-lectures.html gives a syllabus:
- Heat capacity in solids, localised harmonic oscillator models (Dulong-Petit law and Einstein model)
- Heat capacity in solids, a model of sound waves (Debye model)
- A gas of classical charged particles (Drude theory)
- A gas of charged fermions (Sommerfeld theory)
- Bonding
- Microscopic theory of vibrations: the 1D monatomic harmonic chain. Mike Glazer's Chainplot program.
- Microscopic theory of vibrations: the 1D diatomic harmonic chain
- Microscopic theory of electrons in solids: the 1D tight-binding chain
- Geometry of solids: crystal structure in real space. VESTA, 3D visualization program for structural models; an example crystal structure database.
- Geometry of solids: real space and reciprocal space. Reciprocal Space teaching and learning package.
- Reciprocal space and scattering. A fun way to discover the world of crystals and their symmetries through diffraction.
- Scattering experiments II
- Scattering experiments III
- Waves in reciprocal space
- Nearly-free electron model
- Band structure and optical properties
- Dynamics of electrons in bands
- Semiconductor devices. Intel's "A History of Innovation"; Moore's Law; From Sand to Circuits.
- Magnetic properties of atoms
- Collective magnetism. A micromagnetic simulation tool, The Object Oriented MicroMagnetic Framework (OOMMF); OOMMF movies of magnetic domains and domain reversal.
- Mean field theory
Problem set dated 2015: users.ox.ac.uk/~corp0014/B6-materials/B6_Problems.pdf Marked by: A. Ardavan and T. Hesjedal. Some more stuff under: users.ox.ac.uk/~corp0014/B6-materials/
The book is the fully commercial The Oxford Solid State Basics.
There are unlisted articles, also show them or only show them.