Quantum electrodynamics by Lifshitz et al. 2nd edition (1982) Updated 2025-07-16
Physics 253a by Sidney Coleman (1986) Updated 2025-07-16
QED and the men who made it: Dyson, Feynman, Schwinger, and Tomonaga by Silvan Schweber (1994) Updated 2025-07-16
Available for free online rent on the Internet Archive: archive.org/details/qedmenwhomadeitd0000schw
Advanced quantum mechanics II by Douglas Gingrich (2004) Updated 2025-07-16
Intel quantum computer Updated 2025-07-16
Architecture All Access: Quantum Computing by James Clarke (2021)
Source. Binary translation Updated 2025-07-16
pyenv Updated 2025-07-16
virtualenv Updated 2025-07-16
python3 -m pip install --user virtualenv
virtualenv .venv
. .venv/bin/activate
pip install -r requirements.txt Python scientific library Updated 2025-07-16
Python web framework Updated 2025-07-16
RSA (cryptosystem) Updated 2025-07-16
Based on the fact that we don't have a P algorithm for integer factorization as of 2020. But nor proof that one does not exist!
The private key is made of two randomly generated prime numbers: and . How such large primes are found: how large primes are found for RSA.
The public key is made of:
n = p*q- a randomly chosen integer exponent between
1ande_max = lcm(p -1, q -1), wherelcmis the Least common multiple
Given a plaintext message This operation is called modular exponentiation can be calculated efficiently with the Extended Euclidean algorithm.
m, the encrypted ciphertext version is:c = m^e mod nThe inverse operation of finding the private
m from the public c, e and is however believed to be a hard problem without knowing the factors of n.Bibliography:
- www.comparitech.com/blog/information-security/rsa-encryption/ has a numeric example
PSL(2,7) Updated 2025-07-16
Proton-to-electron mass ratio Updated 2025-07-16
GFP tagging Updated 2025-07-16
Transcriptional regulation Updated 2025-07-16
Institute for Advanced Study Updated 2025-07-16
Searcing beauty is a painful thing. You just keep endlessly looking for that one new insight that will blow your mind.
The key missing point would be "usefulness". See also: Section "Art".
Position representation Updated 2025-07-16
A way to write the wavefunction such that the position operator is:i.e., a function that takes the wavefunction as input, and outputs another function:
If you believe that mathematicians took care of continuous spectrum for us and that everything just works, the most concrete and direct thing that this representation tells us is that:equals:
the probability of finding a particle between and at time
Position operator Updated 2025-07-16
This operator case is surprisingly not necessarily mathematically trivial to describe formally because you often end up getting into the Dirac delta functions/continuous spectrum: as mentioned at: mathematical formulation of quantum mechanics
Momentum operator Updated 2025-07-16
In three dimensions In position representation, we define it by using the gradient, and so we see that
Squeezed coherent state Updated 2025-07-16
There are unlisted articles, also show them or only show them.