Recent content by Demystifier

Indeed, not only that I think that emergent relativity resolves the conceptual problems of quantum foundations, but also the conceptual problems related to semiclassical and quantum gravity, such as the problem of time in quantum gravity, the cosmological constant problem and the black hole...

There is such a formulation, but it is very complicated. https://arxiv.org/abs/1410.3676

@mzhb the pilot wave is not permeating space, if by space you mean the usual physical 3-dimensional space. The pilot wave lives in a different space, the multi-dimensional configuration space. Therefore your hypothesis cannot be right.

Gravity, of course, is not fictitious because the Riemann curvature is a tensor. But gravity is not the same thing as gravitational force. The claim is that the gravitational force is fictitious, not that gravity is fictitious. The gravitational force is encoded in the coupling of the...

You correctly explained why gravity is dominant at cosmological scales, but the hierarchy problem is not about the cosmological scales. It's about values of various constants (or running constants) in the action, like masses and coupling constants.

There is an interesting similarity with magnetic force. The magnetic force on a point charge is orthogonal to its 3-velocity, so it does no work. But if we have an extended body, typically a magnetic dipole, then magnetic force does work on it.

In physics there are (at least) two notions of momenta, canonical momentum and kinetic momentum. The kinetic momentum is defined as ##m\dot{x}##, while the canonical momentum is defined as ##\partial L/\partial \dot{x}##. In general, they do not need to be identical. But physicists sometimes use...

CH is not about what the reality is, but about what we can say about reality. It is a development and formalization of the Bohr's complementarity principle. According to CH, the set of claims we can say is not unique, but depends on the framework in which we are talking. That is very...

Indeed, the harmonic oscillator potential in physics typically arises due to Taylor expansion around a local minimum of the potential $$V(x)=V(x_0)+(x-x_0)^2 \frac{V''(x_0)}{2}+\ldots$$ so higher terms can be neglected only for small ##|x-x_0|##.

Indeed. For a relatively simple explanation why and how Casimir effect originates from van der Waals forces see my https://arxiv.org/abs/1702.03291 There is nothing exotic about negative energies. Negative potential energy arises whenever there is an attractive force, like Newtonian gravity or...

Today I learned that Terry Rudolph, the R from the famous PBR theorem, is a grandson of Erwin Schrodinger and his mistress. https://en.wikipedia.org/wiki/Terry_Rudolph

I have not studied the papers in detail, but at a first look the critique looks much more plausible.

If the Hamiltonian has a continuous spectrum, then, in the canonical ensemble with non-zero temperature, any given energy has non-zero probability density, but zero probability.

You are right that any state with definite energy has zero probability in that sense. But there is nothing wrong with that conclusion. We are talking about thermal equilibrium, i.e. thermal states in a canonical ensemble, while states with definite non-zero energy are not thermal states, so in...

I think there were a few, but I can find only this one: https://www.physicsforums.com/threads/quantum-mechanics-myths-and-facts.143045/