New answers tagged vacuum
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The total energy in the Casimir effect
I think your question makes a very basic assumption which is incorrect. The "total energy of the system" is not an observable quantity; only differences in energy are.
Energy measurements ...
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The total energy in the Casimir effect
The usual Casimir calculation of the Casimir force in terms of EM modes and boundary condition on the perfectly conducting plates is just a formal trick, and gives only approximate value of the actual ...
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Accepted
Objects in a perfect Vacuum
Step 1: Explosion is when the materials inside a containing entity, are extremely densely packed, leading to an extremely high pressure difference. Why? The pressure difference is created, as for ...
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Objects in a perfect Vacuum
Condensed matter doesn’t explode when placed in a vacuum, but it does tend to expand slightly (mediated by the bulk modulus) as the internal pressure drops from 1 atm to 0 atm. It also tends to ...
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Objects in a perfect Vacuum
The short answer is no. Any rigid body in a vacuum cannot explode, given that the rigid body is not hollow.
All atoms of a solid, non-hollow, rigid body are tightly bound together by covalent and ...
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Is it possible to produce protons from vacuum polarization?
Except for the greater mass energy required, there is no major difference between how different charged particle-antiparticle pairs are produced by a strong electric field $\vec{E}$. The lowest-order ...
Buzz♦
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Accepted
Inflationary Expansion and Vacuum Energy
It seems that in the early Universe the vacuum energy spread to a very large region of space very quickly (superluminally). But in fact, the vacuum energy - and all energy - didn't "spread out&...
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Static Patch Decomposition of Bunch-Davies Vacuum
I am unable to write this as a comment as my reputation isn't quite high enough.
However, Sections 1 and 2 of this paper https://arxiv.org/pdf/hep-th/0212209 discuss this as well as, to a lesser ...
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