Why is there a problem with Quantum Gravity?

Discussion in 'Alternative Theories' started by Suomy Nona, Dec 22, 2014.

1. Suomy NonaRegistered Member

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Why is there a problem with Quantum Gravity?

This may be a naive question but I'll go ahead and ask it.

In Classical Mechanics it seems trivial to produce gravity field values based on the electrostatic field, please see attached image.

I concede that there is a big difference between classical electrostatics and quantum dynamic systems but if Quantum Mechanics can produce highly accurate electric field values; why can't it deal with gravity?

After all , it is well known that Newton's and Gauss' law are mathematically equivalent, and I believe that quantum mechanics already uses Gauss' law within the Hamiltonian.

3. Russ_WattersNot a Trump supporter...Valued Senior Member

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What does it do?

5. Suomy NonaRegistered Member

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It animated gif file shows a simple way of calculating the gravity field from the electrostatic field. Basically just moving some summations around from Jackson. My follow up question is that if quantum mechanics does electric field calculations so well why can't it do gravity? Newtons law and Coulombs law are very similar and quantum already uses Coulombs law for electric gradient...

7. Russ_WattersNot a Trump supporter...Valued Senior Member

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Show me. Calculate soemthing useful from it. Like the weight of an object on Earth or the force between the Earth and moon.

8. Suomy NonaRegistered Member

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18
I believe that I can do what you ask, mainly I need to know the number of electrons, protons, neutrons on earth and the moon in order to produce meaningful numbers. we know that the net electric field of earth is zero but clearly we have a gravity field; thus the positive and negative electric fields (using my method) can not be zero.

Anyway, please give me a few days.

9. originHeading towards oblivionValued Senior Member

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Yikes, that sounds very difficult if not impossible.

Here is an idea that I think Russ_Watters would think is a good substitution.

What would be the gravitational force between 2 masses that are both 100 moles of iron? You pick the distance between the masses.

10. Russ_WattersNot a Trump supporter...Valued Senior Member

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Sure, that'll work. Guess mine was too hard...

11. originHeading towards oblivionValued Senior Member

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11,713
Well, we both know it really doesn't matter.

12. Suomy NonaRegistered Member

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Sure it matters, took me a few days to figure out that it was a simple problem classically. Turns out that there are 1.29E28 volt/meter's per newton/kilogram. Sure that it's one of those facts in life that you always wanted to know. If you know the g field, you can get to the E sub-fields.

Now wondering if someone can write a sub-field operator in Quantum? If someone could write an electric sub-field operator that returns only the contributions of a particle species, then quantum gravity solves itself.