quantum mechanics
In a more general sense: synonymous with quantum theory. In a more restricted sense: The quantum theory of particles moving under the influence of forces - wherein the particles are described as quantum objects, while the forces are not. An important ...
quantum gravity
Theory based both on the effects, concepts and laws of quantum theory and on those of general relativity. To date, no complete such theory exists; the best-known candidate theories are string theory and loop quantum gravity. Some information on the ...
quantum field theory, relativistic
Collective name for theories that are quantum theories based on the principles of special relativity. Typically, in relativistic quantum theory there exists for every species of particle a corresponding species of anti-particle; forces are transmitted by the ...
Quantum electrodynamics
Quantum theory of electromagnetic interactions. These interactions are described via the exchange of carrier particles called photons, for instance: when two electrons repel each other via the electromagnetic force, that influence is transmitted by photons ...
quantum effects
All effects and phenomena that follow from the fact that, deep down, our world obeys not the laws of classical physics, but those of quantum theory. Examples are tunneling and consequences of the Pauli exclusion principle for the structure of ...
quantum cosmology
According to the big bang models, the energy density of the very early universe was extremely high, with the contents of the observable universe compressed into a volume much smaller than that of an atomic nucleus. Under such circumstances, the effects of ...
Quantum chromodynamics
Quantum theory of the strong nuclear interactions between quarks (or compound particles made of quarks). These interactions are described via the exchange of carrier particles called gluons, for instance: when two quarks attract each other via the strong ...
quantize
First of all, quantization is the process describing the transition from a classical theory to the corresponding quantum theory. For instance, if you quantize classical electrodynamics, you will end up with its quantum version, quantum electrodynamics. On ...
