hbar

Reduced Planck constant, Planck constant over 2π.

Syntax
hb = hbar
Description

hbar returns the value of the reduced Planck constant, h/2π, in SI units (joule*second/radian) in hb.

Reference

The value is taken from the 2018 CODATA collection of recommended values.

See also

amu, angstrom, avogadro, barn, bmagn, bohrrad, boltzm, clight, echarge, emass, eps0, evolt, faraday, gammae, gfree, hartree, molgas, mu0, nmagn, nmass, planck, pmass, rydberg