Casimir pressure

Casimir pressure is created by the Casimir force of virtual particles.

According to experiments, the Casimir force ${\displaystyle F}$ between two closely spaced neutral parallel plate conductors is directly proportional to their surface area ${\displaystyle A}$:

${\displaystyle F=PA.}$

Therefore, dividing the magnitude of Casimir force by the area of each conductor, Casimir pressure ${\displaystyle P}$ can be found. Because the Casimir force between conductors is attractive, the Casimir pressure in space between the conductors is negative.

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