Vacuum energy is an underlying background energy that exists in space throughout the entire Universe. The vacuum energy is a special case of zero-point...

is called the vacuum state, its associated zero-point energy is called the vacuum energy and the average energy value is called the vacuum expectation value...

reached a more stable vacuum, this "bubble" (also called "bounce") would spread. A false vacuum exists at a local minimum of energy and is therefore not...

Unsolved problem in physics: Why is the vacuum energy density much smaller than a zero-point energy suggested by quantum field theory? (more unsolved...

theory, the quantum vacuum state (also called the quantum vacuum or vacuum state) is the quantum state with the lowest possible energy. Generally, it contains...

dielectrics, alter the vacuum expectation value of the energy of the second-quantized electromagnetic field. Since the value of this energy depends on the shapes...

A vacuum (pl.: vacuums or vacua) is space devoid of matter. The word is derived from the Latin adjective vacuus (neuter vacuum) meaning "vacant" or "void"...

More accurately, the vacuum energy caused by the virtual particle pairs is pushing the plates together, and the vacuum energy between the plates is too...

fluctuation of vacuum energy, resulting in its positive mass-energy being exactly balanced by its negative gravitational potential energy. In the subsequent...

as the energy density of space, or vacuum energy, that arises in quantum mechanics. It is closely associated with the concept of dark energy. Einstein...

fluctuation (also known as a vacuum state fluctuation or vacuum fluctuation) is the temporary random change in the amount of energy in a point in space, as...

the existence of a vacuum energy and a pressure of opposite sign. This has led to the terms "cosmological constant" and "vacuum energy" being used interchangeably...

include a background energy which pervades empty space, known as vacuum or zero-point energy. The ability to harness zero-point energy for useful work is...

space (which conceptually could be either positive or negative), or "vacuum energy". The cosmological constant was first proposed by Einstein as a mechanism...

energy field. As the Heisenberg uncertainty principle implies that there is no such thing as an exact amount of energy in an exact location, vacuum fluctuations...

possible energy. Quantum vacuum may also refer to: Quantum chromodynamic vacuum (QCD vacuum), a non-perturbative vacuum Quantum electrodynamic vacuum (QED...

the vacuum expectation value (also called condensate or simply VEV) of an operator is its average or expectation value in the vacuum. The vacuum expectation...

redshift and tethers spontaneously gain tension; if vacuum energy is positive, the total vacuum energy of the universe appears to spontaneously increase...

The QED vacuum or quantum electrodynamic vacuum is the field-theoretic vacuum of quantum electrodynamics. It is the lowest energy state (the ground state)...

releases too large an amount of energy and releases the energy on too short a time scale to be consistent with the vacuum energy explanation, although other...

Expanding vacuum state with high potential energy Phase transition to true vacuum Slow roll and reheating In quantum field theory, a vacuum state or vacuum is...

presently observed vacuum energy density of the universe has also come under scientific study. As observed, the present vacuum energy density is extremely...

determination has been made in vacuum. However, the vacuum we know is not the only possible vacuum which can exist. The vacuum has energy associated with it, called...

sign of the vacuum energy depends on both the geometry and topology of the configuration. Being negative for parallel plates, the vacuum energy is positive...

Vacuum catastrophe can mean: the cosmological constant problem in cosmology the divergence in the calculation of vacuum energy in quantum field theory...

semiconductor-vacuum interface (that is, the surface of a semiconductor), electron affinity, typically denoted by EEA or χ, is defined as the energy obtained...

caused by interactions between the virtual photons created through vacuum energy fluctuations and the electron as it moves around the hydrogen nucleus...

spacetime vacuum lacking vacuum energy). Quantum mechanics heavily favors smaller fluctuations that "borrow" the least amount of energy from the vacuum. Typically...

flow harnessing UASB Uranium Vacuum energy Vibration energy harvesting Vortex energy Water turbine Wave power Wind energy Wind farm Wind turbine Wood fuel...

gravitational repulsion in the cosmological context. A field in a positive-energy false vacuum state could represent such a fluid, and the resulting repulsion would...