Quantum physics is a branch of physics dealing with physical phenomena at microscopic scales, where the action is on the order of the Planck constant
Quantum-entropic logic theory offered a formula for information wave radiation quantum, which links in with energy of a system through Planck constant
hfs]; the speed of light in vacuum c; the Planck constant
h; the elementary charge e (charge of a proton); the Boltzmann constant k; the Avogadro constant [N.
The results can be used to define the kilogram in terms of the Planck constant
that relates the frequency of a particle's wavefunction to its energy.
where [lambda] is wavelength, T is the absolute temperature, h is the Planck constant
and c is the speed of light.
The Planck constant
serves numerous roles in quantum mechanics, including setting limits on how much can be simultaneously known about a particle's momentum and position.
where [DELTA]E is the energy gained by the virtual particle during the time interval [DELTA]t, that is equivalent to the mass/energy of the real particle that would exchange with it, and h is the Planck constant
Liu, Towards an electronic kilogram: an improved measurement of the Planck constant
and electron mass, Metrologia 42, 431-441 (2005).
Kibble at England's National Physical Laboratory, this method offers a precise value of the Planck constant
, from which one derives Avogadro's number.
The energy values and the neutron wave functions in such a system depend on m, g, on the Planck constant
and on the quantum number n only.
The National Institute of Standards and Technology (NIST) watt balance experiment completed a determination of Planck constant
in 1998 with a relative standard uncertainty of 87 X [10.