How can the signs change with an acceleration? Unruh radiation.

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Offline jartza

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How can the signs change with an acceleration? Unruh radiation.
« Reply #50 on: 11/01/2011 19:51:53 »
What I really meant was: charged object free falling non-uniformly, while different parts of its electric field being in different gravity fields.

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Offline yor_on

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How can the signs change with an acceleration? Unruh radiation.
« Reply #51 on: 13/01/2011 05:06:11 »
I asked him about it, and he sent me this link Graham :) Black Hole Thermodynamics and Statistical Mechanics by Steve Carlip. I hope it will make it more understandable for us. 
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It looks really nice.
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Offline jartza

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How can the signs change with an acceleration? Unruh radiation.
« Reply #52 on: 14/01/2011 17:31:30 »
The capacitor plates idea is beyond my current understanding (no pun intended). I guess it is not possible to polarise the BH and I would assume then that the dielectric constant of the BH is zero - all the effective field lines from the plates would have to bend around the BH making the capacitance lower than would be the case if the BH wasn't there. I will build one in my garden and measure it :-)


Oh yes, black hole moving slowly through electric field gently pushes the field lines off of its way. Only a small wave is produced.

Black hole does NOT eat a hole in the electric field that it goes through.






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Offline imatfaal

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How can the signs change with an acceleration? Unruh radiation.
« Reply #53 on: 14/01/2011 17:34:47 »
I asked him about it, and he sent me this link Graham :) Black Hole Thermodynamics and Statistical Mechanics by Steve Carlip. I hope it will make it more understandable for us. 
==

It looks really nice.

They look great - Thanks Yor-On
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