Recent content by Dinosky

It would be interesting to know that the first term e * V(x)|ψ|^{2} has the value of EPE of electron at Bohr radius and the value of the second term |∇ψ|^{2} / m consistent with the KE of a "classical" electron moving in that orbit. The interpretation of |ψ|^{2} as probability density of...

That means if we are going to really detect such negative KE electron, it would inevitably absorb enough energy from the measuring device to turn it into a state with positive KE to be observable... could this be "proved" using quantum theory? (e.g. showing that using photons of insufficient...

What would be observed for a particle with negative kinetic energy? Or put it the other way, how can one conclude from an observation of the particle that it possesses negative K.E.?

The wave function of an electron in ground state hydrogen atom is non-zero at points far away from the nucleus. Interpreted as the probability of finding the electron, this is telling us that there is a finite probability of finding an electron far away from the nucleus even if it is at ground...

Thank you for the insights. Does it mean that in BB model there is non-conservation of energy? In other words in expanding universe the total energy content of the whole universe is increasing, isn't it? I have an idea that the expansion of universe should in principle be measurable in...

Thank you for the reply. I have difficulties in seeing the difference between the two, as if GR is the governing equation that applies to both cases, it should give the same implication for the starting point of BB where gravity should be large enough to stop any possible expansion? Really not...

I read from a special relativity book that they are under different coordinate systems in the space time. The Lorentz transformation between them is something like a 'rotation' of the coordinate axis so that different observers has different simultaneity of events in the space time continuum.

We know that matters cannot escape from the gravity of a black hole when they are close enough to its center. Would it be the same at the start of the big bang? Why matters can escape from the huge gravity at the start of the big bang?