Wiktionary
n. (context physics English) The underlying background energy of empty space.
Wikipedia
Vacuum energy is an underlying background energy that exists in space throughout the entire Universe. One contribution to the vacuum energy may be from virtual particles which are thought to be particle pairs that blink into existence and then annihilate in a timespan too short to observe. They are expected to do this everywhere, throughout the Universe. Their behavior is codified in Heisenberg's energy–time uncertainty principle. Still, the exact effect of such fleeting bits of energy is difficult to quantify.
The effects of vacuum energy can be experimentally observed in various phenomena such as spontaneous emission, the Casimir effect and the Lamb shift, and are thought to influence the behavior of the Universe on cosmological scales. Using the upper limit of the cosmological constant, the vacuum energy of free space has been estimated to be 10 joules (10 ergs) per cubic meter. However, in both quantum electrodynamics (QED) and stochastic electrodynamics (SED), consistency with the principle of Lorentz covariance and with the magnitude of the Planck constant requires it to have a much larger value of 10 joules per cubic meter. This huge discrepancy is known as the vacuum catastrophe.
Usage examples of "vacuum energy".
But I will point out that the proposed vacuum energy is present here on Earth, as well as in remote locations.
If the wormhole is shorter than the path through external space, then the energy of the virtual particles passing through it will be slightly higher than the normal vacuum energy.
In the outer world, akash is the spatial or vacuum energy out of which all material substance comes into being.
In 2000 Bousso and Polchinski combined string theory with an earlier idea of Steven Weinberg to explain why we shouldn't be surprised that a universe with the right level of vacuum energy exists.
There were pockets of subspace opening all around them, which meant that the generator was still siphoning vacuum energy.
The BPP has tried to create interest and serious investigation into concepts like warp drives, wormholes, vacuum energy, and various other seemingly science-fiction-type technologies.
If the universe has somehow retained the vacuum energy from this phase transition, then it will exhibit an antigravity effect of just the right size.
The most widely accepted theory is that someone else had been tapping vacuum energy - and had lost control.
The potential gains for everyone were so great, everything from faster-than-light travel to vacuum energy to extended lifespan, it seemed criminal to lock away important results in secret boxes.