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Capla comments on The "best" mathematically-informed topics? - Less Wrong Discussion

13 Post author: Capla 14 November 2014 03:39AM

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Comment author: Capla 14 November 2014 03:40:30AM 1 point [-]

The Schrödinger equation

Comment author: leplen 15 November 2014 01:06:28AM 8 points [-]

I don't think that trying to solve the Schrödinger equation itself is particularly useful. The SE is a partial differential equation, and there's a whole logic of differential equations and boundary conditions, etc. that provides context for the SE. If you're serious about trying to understand quantum mechanics, I think the concept of Hilbert space/abstract vector spaces/linear algebra in general is a bigger conceptual shift than just being able to solve the particle in a box in function space. It's also just a really useful set of concepts that makes learning things like optimization, coordinate/fourier transforms, etc. easier/more intuitive.

Until I had the wave function explained to me as some vector in a high dimensional space that we could map into x-space or p-space or Lz-space I don't think I really had a good grasp on quantum mechanics. This is anecdote not data, your mileage may vary.

Comment author: TrE 15 November 2014 08:38:42AM 1 point [-]

I'm just making a similar experience.

Comment author: TheMajor 14 November 2014 05:29:02PM 3 points [-]

Try the wave equation first? If you want to think of particles like waves it might be useful to know what a wave is. Note that you already need to have heard of a respectable chunk of calculus to solve this equation.

Comment author: Toggle 14 November 2014 06:43:49PM *  1 point [-]

The Schrodinger equation itself can be understood as simply a particular instance of integral calculus. If I recall my undergrad days correctly, you didn't even need linear algebra. Once you know the calculus, quantum waveforms don't require a whole lot of additional mathematical insight.