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Steve Martin

@spmartinx.bsky.social

high energy particle physics, -+++

54 Followers  |  73 Following  |  9 Posts  |  Joined: 01.02.2025  |  1.7505

Latest posts by spmartinx.bsky.social on Bluesky

The cover art is an AI-generated Schrodinger's cat emerging triumphant, and fully decohered, after thinking outside the box. (4/4)

04.08.2025 02:33 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

This is close to the final form, but the published version will have an additional chapter, "Invitation to Quantum Information", and a few more exercises. If you have taught or will be teaching graduate quantum mechanics, or know somebody that is, please take a look and spread the word. (3/4)

04.08.2025 02:33 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

This is not just a set of lecture notes, but rather a full-fledged textbook. Beside the traditional topics found in older books, I've included discussions of the hidden variables alternative, Bell inequalities, entangled subsystems and open systems, generalized measurements, and decoherence. (2/4)

04.08.2025 02:33 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Schrodinger's cat, emerging triumphant and fully decohered, after thinking outside the box.

Schrodinger's cat, emerging triumphant and fully decohered, after thinking outside the box.

I'm pleased to announce my new graduate quantum mechanics textbook. It will be published by Springer next year, but for now everyone is encouraged to download it (and use it!) for free:
www.niu.edu/spmartin/qm....
(1/4)

04.08.2025 02:33 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

What the algorithms hear when you say that: "CELEBRITY RELATIONSHIPS! PRO TENNIS!! MCENROE-EVERT LOVE CHILD FOR NYC MAYOR!!!"

23.06.2025 16:44 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

The crucial HVP contribution was data-driven in the previous estimates, until lattice theorists came to the rescue. So not so clear to me that doubting "theorists' calculations" should be awarded the "huge win". Indeed, the present situation seems to be that theory is ahead of experiment on the HVP.

28.05.2025 06:35 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Yeah but they didn't have distractions like arXiv and Mathematica and the internet.

11.02.2025 03:03 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Great read! Do Heisenberg's comments mean that the QM version of her 1st theorem (if the Hamiltonian commutes with an observable [symmetry generator], then the probabilities of outcomes of measurements of that observable don't depend on time) was found independently of Noether's earlier work?

09.02.2025 18:21 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
From spinors to supersymmetry – CERN Courier In their new book, From Spinors to Supersymmetry, Herbi Dreiner, Howard Haber and Stephen Martin describe the two-component formalism of spinors and its applications to particle physics, quantum field...

Here's a review of my little book with Herbi Dreiner and Howie Haber, "From Spinors to Supersymmetry", from @cerncourier.bsky.social
cerncourier.com/a/from-spino...

05.02.2025 21:18 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

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