Recent content by olgerm

I agree that in usual macroscopic measurements decoherence is effectively irreversible for all practical purposes. My point was formal(excact not about practical approximations) not practical. Since the global wavefunction ##\Psi## time-evolution is completely described by Schrödinger...

Do predictions of MWI and copenhagen-interpretation always agree? If yes then effects that are caused by interactions between approxiamately decohered branches that are in QM with MWI should also be predicted by QM with copenhagen-interpretation. So prediction of copenhagen-interpretation that...

The observable property of conciousnes is that humans do understand and say, that they are concious. What is the "easy problems" explanation to why humans say that they do have subjective experiance? If askes "do you have conciousnes?" why do humans answer "I do have subective experiance...

If you can make computer-program that behaves exactly like human then it should say that it has consciousness(qualia) just like humans. If you understand the easy problem and know how neural connections in human body causes humans act like their do then you should also know how neural...

I modified my post now and tried to correct mistakes. you can tell me if it is correct now.

In standard quantum mechanics (without objective wavefunction collapses) were time-evolution of wavefunction is predicted only by Schrödinger-equation: in MWI: In each branch after that branch went to decoherent to branches with different coordinate output-values Bob in that branch says "after...

Suppose one photon goes through an interferometer and then hits a screen. A device detects the hit position, digitizes it, and later a person Bob reads the output. 1. Before detection Initially the total wavefunction ##\Psi## describes: the photon moving toward the interferometer, the screen...

If I look physicsforums site in mobile, then much of space is covered by Google ads. Often some big add comes from top of the page that covers most of page. it is closeable by clicking, but it still disturbs. also very many ads between posts. almoust after every click to new thread big ad that...

in non-reativistic physics between all spacetime events both time difference and spacial-distance must be same in all frames of reference. euclidean-spacetime distance between 2 events must be injective function of spacial-distance and time-difference between these events. But it could be linear...

1 of famous examples where predictions of Newtonian-gravity and GR differ is perihelion precession of Mercury. Would predictions from GEM-model agree more with predictions of Newtonian-gravity or predictions of GR? GEM surely would predict Lense–Thirring precession. But would the overall...

Newtonian gravity and GEM can not be mixed that way because Newtonian gravity is Galilei-invariant, but GEM is lorenz-invariant. 1 interesting thing about GEM is that GM field itself has energy density (##J_{G0}=E_{G0}^2/2+B_{G12}^2/2+B_{G13}^2/2+E_{B23}^2/2##). Would it not cause some positive...

We can also write down gravitomagnetic equations using gravitomagnetic-4-potential. EM equations: ##dA_{E0}/dx0+dA_E1/dx1+dA_E2/dx2+dA_E3/dx3=0## (lorentz gauge condition) ##-dA_{E0}^2/dx0^2+dA_{E0}^2/dx1^2+dA_{E0}^2/dx2^2+dA_{E0}^2/dx3^2+J_{E0}=0##...

It is interesting to note, that these equations do not predict gravitational time dilation nor gravity bending light. But modifying these equations a little bit would give a model, that also predicts time dilation and gravity bending light. I wonder how many possible models of physics there are...

I add measurement uncertinity to my post 13. with probability 68% the units are in following range: ##4.790 482*10^{-43}*s >t_b>4.790 589*10^{-43}*s## ##1.4361 502*10^{-34}*m >l_b>1.4361 825*10^{-34}*m## ##1.5389 542*10^{-8 }*kg>m_b>1.5389 888*10^{-8}*kg## ##1.326211322 086*10^{-18}*C...

All tensors here are contravariant. from maxwell equation in terms of E-field we know that: $$\rho=\frac{\partial E_1}{\partial x_1}+\frac{\partial E_2}{\partial x_2}+\frac{\partial E_3}{\partial x_3}$$ from maxwell equation in terms of magnetic 4-potential in lorenz gauge we know that...