Reduced Planck constant, Planck constant over 2π.
hb = hbar
hbar
returns the value of the reduced Planck constant, h/2π, in SI units (joule*second/radian) in hb
.
The value is taken from the 2018 CODATA collection of recommended values.
amu, angstrom, avogadro, barn, bmagn, bohrrad, boltzm, clight, echarge, emass, eps0, evolt, faraday, gammae, gfree, hartree, molgas, mu0, nmagn, nmass, planck, pmass, rydberg