Celebrate the 100th anniversary of #quantummechanics and today's International Day of #Light with us! There will be an extensive programme at various Max Planck Institutes.⬇️ #lightday2025
quantummechanics
How Hans Bethe Stumbled Upon Perfect Quantum Theories
Quantum calculations amount to sophisticated estimates. But in 1931, Hans Bethe intuited precisely how a chain of particles would behave — an insight that had far-reaching consequences.
By Matt von Rippel
https://www.quantamagazine.org/how-hans-bethe-stumbled-upon-perfect-quantum-theories-20250212/
More information about Hans Bethe:
https://en.wikipedia.org/wiki/Hans_Bethe
#OTD in 1914.
The Franck–Hertz experiment, the first electrical measurement to clearly demonstrate the quantum nature of atoms, was presented to the German Physical Society.
Their experimental results proved to be consistent with the Bohr model for atoms that had been proposed the previous year by Niels Bohr.
https://en.wikipedia.org/wiki/Franck%E2%80%93Hertz_experiment
Niels Bohr at PG:
https://www.gutenberg.org/ebooks/author/44167
January 1928: The Dirac equation unifies quantum mechanics and special relativity
A seminal paper by Paul Dirac, who relied on mathematical intuition, laid the foundation for quantum electrodynamics.
By Nyla Husain (from the archives)
https://www.aps.org/apsnews/2024/11/mathematical-intuition-dirac-quantum-mechanics
Me and Clippy get high, roll some #Tangerine Dream on vinyl, and talk about #quantummechanics like it's 1979 all over again. #4A #ChatGPT