Is Causal Dynamical Triangulation (https://en.wikipedia.org/wiki/Causal_dynamical_triangulation) compatible with the Holographic Principle (https://en.wikipedia.org/wiki/Holographic_principle)? Is it there any model that combines both?

I'd like to know if there is a general numerical method of diagonalizing the bosonic quadratic Hamiltonian below $$H=\sum_{i,j=1}^NT_{ij}b_i^\dagger b_j+\frac{1}{2}\sum_{i,j=1}^N\left(U_{ij}b_i^\dagger b_j^\dagger+U_{ij}^*b_ib_j\right)\!,$$ using the Bogoliubov transformation, where $T$ is an $...

I know that the electromagnetic force has an infinite range, but does it have a range within nuclei (according to the charge of protons) after which it's repulsive effect is negligible? If so, what is it?

The interference pattern produced by firing electrons through a double slit can be explained by treating the electrons as classical waves. How does one solve the problem using quantum mechanics and electron wavefunctions? The double slit experiment is often taught to students to introduce them...

One of the upvoted answers to Why don't electromagnetic waves require a medium? says that the electromagnetic field is the medium for electromagnetic waves. It went on to say that if the electromagnetic field does not oscillate, there will be no electromagnetic waves. In real life light can be p...

Doesn't the existence of a Universal wave function allow one to extract a preferred space time foliation? There are plenty of papers that try and derive the prefered space time foliation from BM interpretation and its universal wave function one of the main criticisms is that that goes against ...

I'm currently looking at a way of renormalizing a particular Hamiltonian. One of the questions I'm currently trying to answer is whether, in a renormaliztion group (RG) flow, it is valid to allow the local Hilbert space dimension to become arbitrarily large during the RG process. I'll try illustr...

Suppose we make a transformation from Minkowski space to another coordinate system. What does it mean to say that the two spaces are unitarily equivalent? I have often seen the comment that if the vacuum in one coordinate system is still the vacuum after the transformation, then the two spaces ar...

I know this may be a dumb question to ask, but I'm a middle school student studying quantum physics out of interest and want to know how to find the wave function. Preferably in a square well. Thank you!

During fusion (in the Sun or in attempts on Earth), how is the repulsive effect of the strong nuclear force overcome? (I assume from the name that fusion is just the combining of nuclei, but please do say if I have this completely wrong)

There are 47 electrons in a Silver atom, but talking about its orbital angular momentum we only take outermost 47th electron which occupies 5s orbital, why don't the remaining 46 electrons do not give a contribution to the total orbital angular momentum of a silver atom?