Celestine Wander @lightyears930

The Math Behind Artemis II

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Order by quantum disorder leaves distinct finite-size signatures in the exact diagonalization spectrum that are captured by an effective quantum-rotor description analogous to the Anderson tower of states go.aps.org/48tJtxd

動画を投稿しました 「この世界に存在する対称性をすべて特定する試み｜群論の歴史 - 有限単純群の分類」 youtube.com/watch?v=g4-J4e…

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Peering into the notebooks of Sir Roger Penrose is like watching a masterclass in visual thinking. From the Fano plane and Cayley algebras to early Commodore P50 code and the geometry of Penrose tilings. A true testament to how mathematics, physics, and art are fundamentally inseparable.

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Advancing molecular discovery with quantum computing. 🧬 Together with prominent academic partners, @IBMResearch used quantum computing to validate the world’s first molecule possessing a half‑Möbius electronic topology. Learn more here → ibm.co/6010EEf1G

New article online: Encoding and manipulating ultrafast coherent valleytronic information with lightwaves. go.nature.com/4l0oyqC

Knowledge isn't free. You have to pay attention. — Richard Feynman

"Be a loner. That gives you time to wonder, to search for the truth. Have holy curiosity. Make your life worth living." - Albert Einstein

A long-standing problem in cosmology is explaining why magnetic fields exist everywhere in the universe, from galaxies and galaxy clusters to vast intergalactic regions, despite the fact that standard astrophysical processes struggle to generate fields coherent on such enormous scales. A recent theoretical study proposes that these cosmic magnetic fields may originate not from exotic physics during the earliest moments after the Big Bang, but from the behavior of a specific form of dark matter long after the universe became transparent. The work explores ultralight axion-like dark matter, treated as a coherently oscillating field permeating space, and shows that its interaction with electromagnetism can naturally amplify tiny electromagnetic fluctuations through a resonance-type instability. As the dark matter field oscillates, it transfers energy into the electromagnetic field, allowing magnetic fields to grow across cosmological distances without requiring finely tuned initial conditions or speculative early-universe mechanisms. In this scenario, magnetogenesis occurs after recombination rather than during inflation, which is significant because many earlier models relied on poorly constrained high-energy physics. The mechanism instead operates within relatively well-motivated extensions of known particle physics, where axion dark matter couples weakly to photons through terms already studied in axion electrodynamics. Calculations indicate that magnetic fields produced this way could reach strengths compatible with observational lower limits on megaparsec scales, potentially providing the primordial “seed” fields later amplified by galactic dynamos. If correct, the proposal links two major open questions, the nature of dark matter and the origin of cosmic magnetism, suggesting that the invisible matter filling the universe may have actively shaped the electromagnetic structure observed today. The idea remains theoretical, but it offers testable consequences and reframes cosmological magnetic fields not as relics of unknown early-universe physics, but as a late-time outcome of dark matter dynamics itself. 👉 share.google/XrbGAci0XoTRBh…

Theory of Everything✍️

But while classical have natural two-way control: e.g. battery pushing and pulling electrons through chip, current quantum are one-way ... reaching two-way QC ( qaif.org/2wqc ), they will be much more powerful

@PhysInHistory This huge Standard Model Lagrangian is effective perturbative approximations - with abstract creation operators and probability distributions. To finally understand we need to go to nonpertuerbative - ask about their field configurations.

The Longest Equation in Physics ✍️

Symmetry breaking isn’t chaos. It’s selection. The laws of physics are often highly symmetric. But symmetry alone does not determine what exists. A perfectly symmetric state can be unstable, not because symmetry is wrong, but because it is not energetically preferred. Structure emerges when a system settles into a lower-energy configuration. That configuration may reduce symmetry, but it increases stability. Symmetry defines the landscape. Energy curvature determines stability. Reality is the minimum. This is true in: - The Higgs mechanism - Magnetization - Superconductivity - Phase transitions - Cosmology Instability does not arise from “asymmetry.” It arises when a symmetric configuration is not a minimum. Structure is not symmetry lost. It is symmetry resolved.

Fermat's Library @fermatslibrary

5 months ago

Born 105 years ago, Yoichiro Nambu won the Nobel in Physics for his work on spontaneous symmetry breaking-a phenomenon where hidden symmetries 'break,' giving rise to properties in nature. His ideas paved the way for the Higgs mechanism, explaining how particles gain mass.

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Cauchy Residue Theorem is a fundamental principle in complex analysis used to evaluate complex integrals. It provides both the mathematical formula and a simple explanation of its application.

Kerr Metric (rotating, uncharged black hole) ✍️ Introduced by Roy Kerr (1963). Describes a spinning black hole with angular momentum J.

Sistemes estel·lars on s'estan formant planetes. Aquestes imatges han estat capturades pel telescopi espacial Hubble, i mostren els discos que envolten alguns estels i on ha començat el procés de fabricació de planetes. Crèdit: NASA/ESA.

The amazing view of dusty spiral galaxy "NGC1566" .

Recently published in PRA: Optical centrifuge with zero rotational acceleration go.aps.org/49RdFDZ

Hamiltonian Monte Carlo frames sampling from a probability distribution as a physics problem. By endowing "particles" with momentum and simulating their energy and motion through Hamilton's equations you can efficiently explore a distribution.