Virtual state (physics)
In quantum physics, a virtual state is a very short-lived, unobservable quantum state.In many quantum processes a virtual state is an intermediate state, sometimes described as "imaginary" in a multi...
Quantum scientists create light from vacuum
Scientists at Chalmers have succeeded in creating light from vacuum – observing an effect first predicted over 40 years ago. The results have been published in the journal Nature. In an innovative exp...
Virtual particle
In physics, a virtual particle is an explanatory conceptual entity that is found in mathematical calculations about quantum field theory. It refers to mathematical terms that have some appearance of r...
Quantum scientists create light from vacuum
Scientists at Chalmers have succeeded in creating light from vacuum – observing an effect first predicted over 40 years ago. The results have been published in the journal Nature. In an innovative exp...
Vacuum genesis
Vacuum genesis (zero-energy universe) is a scientific theory about the Big Bang that states that the universe began as a single particle arising from an absolute vacuum, similar to how virtual particl...
Unruh effect
The hypothetical Unruh effect (or sometimes Fulling–Davies–Unruh effect) is the prediction that an accelerating observer will observe black-body radiation where an inertial observer would observe none...
Pair production
Pair production is the creation of an elementary particle and its antiparticle, for example an electron and its antiparticle, the positron, a muon and antimuon, or a tau and antitau. Usually it occurs...
Force carrier
In particle physics, force carriers are particles that give rise to forces between other particles. These particles are bundles of energy (quanta) of a particular kind of field. There is one kind of f...
Quantum tunnelling
Quantum tunnelling or tunneling (see spelling differences) refers to the quantum mechanical phenomenon where a particle tunnels through a barrier that it classically could not surmount. This plays an ...
Quantum tunnelling - Wikipedia
Quantum fluctuation
The video of an experiment showing vacuum fluctuations (in the red ring) amplified by spontaneous parametric down-conversion.In quantum physics, a quantum fluctuation (or quantum vacuum fluctuation ...
Perturbation theory (quantum mechanics)
In quantum mechanics, perturbation theory is a set of approximation schemes directly related to mathematical perturbation for describing a complicated quantum system in terms of a simpler one. The id...