Noun
(physics, quantum mechanics) The lowest possible energy of a given quantum mechanical system.
The existence of a zero-point energy (i.e., the existence of a non-zero lower limit to the energy of a quantum-mechanical system) is a consequence of Heisenberg's uncertainty principle.
(physics, physical chemistry) The kinetic energy possessed by (the particle constituents of) a substance at absolute zero temperature.
Source: en.wiktionary.orgAdditionally, some field theories were proven to be exactly equivalent to free theories (whose vacuum expectation values were zero), and so again, we assumed that the zero-point energy was zero. Source: Internet
Although the Casimir effect can be expressed in terms of virtual particles interacting with the objects, it is best described and more easily calculated in terms of the zero-point energy of a quantized field in the intervening space between the objects. Source: Internet
Also, the microscopic properties of helium-3 cause it to have a higher zero-point energy than helium-4. Source: Internet
Assuming the energy of rotating diatomic molecules contains zero-point energy, they then compared the theoretical specific heat of hydrogen gas with the experimental data. Source: Internet
Gridfire resembles the zero-point energy used within many popular science fiction stories. Source: Internet
However, even if scientists could remove all kinetic thermal energy from matter, quantum mechanical zero-point energy (ZPE) causes particle motion that can never be eliminated. Source: Internet