Recent content by JasonWuzHear

okay I have my answer, the volume of what's left of the cube is...0.0580191... in^3here's an imgur album with my work: http://imgur.com/a/Xzwjk agh forgot to say that the 4 pi r^2 should be a pi r^2 obviously. When I evaluated the integral numerically in mathematica I fixed it. Seems I got the...

I should also say, that Wheeler's superspace is more easily thought of in superpositions than spacetime. Go ahead and look that up.

This is fun to think about. It really forces you to try and understand, "what is spacetime?", "what is curvature?", "What is a distance?"... Space-time is a structure we can use to organize distances between events. These distances define the communication time associated with the two points...

Here's an imgur album of my work: http://imgur.com/a/AttQ7 It's not at all rigorous and tidied up, but I believe it easily leads to a solution. I'll type out what is said in my notes and post a more rigorous solution when I'm away from job. I'm too lazy to integrate right now, but I'll leave...

I think the OP is just wondering if light can have a velocity component in an extra dimension which would make the projection of the velocity in our usual number of dimensions look smaller.

yes, that is where I got it.

I was thinking of a couple reasons why it might be true. For one, there is the Griffith's proof that Exact decoherence implies conservation of quantities that commute with the Hamiltonian. Exact decoherence in energy states is not different than saying the quantum uncertainty in energy is zero...

I'm trying to understand the concept of uncertainty in relation to derivatives for a large quantum system, i.e. one with many degrees of freedom. When is it true that σE/σt ~ dE/dt? ---- 'σ' is the uncertainty First, I know there is no time operator in quantum mechanics. I'm not sure how to...

As an Undergrad, here are the math courses I've taken: Diff EQ - Used trig nonstop Linear Algebra - not much trig, only once we got to transforms (rotations) Vector Cal - lots of trig

I am curious if photons are quantized because their 'parent' particles are quantized, and the photons are entangled with their parents. In other words, if you were to have two entangled particles emit a photon(s) that is entangled in energy somehow, do they emit a single photon, two photons...

Hello, I'm trying to better understand entanglement in the context of measurements and interactions. (1.) Are uncertainty and entanglement linked together? Are the eigenstates of an observable entangled since a measurement of one of them collapses the wavefunction to a single eigenstate, making...

Imagine you have two boxes, each with a photon of equal frequency inside the boxes. The boxes, however, have different side lengths (yet, the boxes on their own are equal in mass). Wavelength of photon << Length of Box A < Length of Box B I've seen that a photon increases the mass of the...

I'm having a hard time understanding why it makes sense to say that the particle has an uncertain position to which it can collapse, but not to say that the particle has an uncertain time to which it can collapse. Similarly, why do we consider when the particle collapses as when we measure it...

1. Is there any reason to interpret the wave function as probabilities of specific states rather than an actual interference of those states? Or are there some types of measurements that are better thought of as probabilities? For example, thinking of the particle as a point-like object with the...

I'm sorry, I'm a bit too ignorant to know of a mechanism through which some particles might be created. =( Where my logic comes from is... If the Planck length is the smallest quantized unit of length, then what happens when a photon gets excited enough to reach a wavelength of that length...