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A college-level sourcebook and textbook on several problems in philosophy, physics, and metaphysics, with tentative solutions using the new methodology of.
Table of contents
- The Atlantic Crossword
- What Happened Before the Big Bang? The New Philosophy of Cosmology - The Atlantic
- On the Edge of Philosophy and Physics
Why must we give up on the project of understanding what's actually happening in nature? Philosophers are interested in versions of quantum mechanics that don't refer to observers in the laws. I've studied a handful of options, one of which is the many-worlds interpretation. This interpretation includes multiple parallel universes. The wave function never really collapses, but there is an appearance of collapse when the wave function splits into different parts as will happen during quantum measurements. This splitting is a natural physical phenomenon, governed by the same laws as any other process.
I've just finished a few papers. One is on the question of whether electrons really spin. In quantum mechanics, electrons and other fundamental particles have a property called "spin. They use the word "spin" because electrons act like little bar magnets and have angular momentum, just as you'd expect for rotating charged bodies. However, it's thought that electrons can't really be spinning because they are too small—they're often treated as point-size. That leaves us in an awkward position: electrons act like they spin but don't actually spin.
I've written a paper arguing that the electron really does spin. Basically, using something called the Dirac field, I show that the mass and charge of an electron flow in circles around its center—sort of like the clouds in a hurricane. In a full quantum theory, you can think of the electron as being in a superposition of different states of spinning. I think it's helpful to think of philosophy as being on the border of physics. Some people do philosophy of physics with the idea that they want to solve philosophical problems using physics.
I am actually more interested in going the other way.
I'm hoping that this kind of philosophical questioning can actually help physics progress. My goal is to produce outputs that are of interest to physicists. As an example, the question of quantum gravity is a big one right now in physics—how to make the laws of the macroscopic world i. I work in computational quantum condensed-matter physics: the study of matter, materials, and artificial quantum systems. Complex problems are our thing.
The Atlantic Crossword
Researchers in our field are working on hyper-powerful batteries, perfectly efficient power transmission, and ultra-strong materials—all important stuff to making the future a better place. To create these concepts, condensed-matter physics deals with the most complex concept in nature: the quantum wavefunction of a many-particle system. Think of the most complex thing you know, and this blows it out of the water: A computer that models the electron wavefunction of a nanometer-size chunk of dust would require a hard drive containing more magnetic bits than there are atoms in the universe.
I started thinking about how machine learning and artificial intelligence could help our field when Google DeepMind defeated world champion Lee Sedol in the ancient game of Go.
What Happened Before the Big Bang? The New Philosophy of Cosmology - The Atlantic
Many computer scientists would tell you that this achievement—comparable to the historic chess match between Deep Blue and Garry Kasparov in —happened years ahead of predictions. In contrast, the complexity of Go is many orders of magnitude greater. So complex, in fact, that scientists and engineers were unsure it was technologically possible to produce hardware powerful enough to solve Go.
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Instead of hard-coding programs for a specific singular task, we can now teach machines to learn and adapt themselves for different tasks at hand. One small breakthrough in condensed-matter physics could change everything.
On the Edge of Philosophy and Physics
The possible worlds of modal philosophy offer no real possibilities. We hope that philosophers will examine our method of philosophizing, based not on language but on information.
- Bob Doyle, Great Problems in Philosophy and Physics: Solved? - PhilArchive.
- 1. Introduction.
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