Category:Definitions/Reduced Planck Constant

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This category contains definitions related to Reduced Planck Constant.


The reduced Planck constant is the physical constant $\hbar$ which is derived from Planck's constant by dividing it by $2 \pi$:

$\hbar = \dfrac h {2 \pi}$
\(\ds \hbar\) \(=\) \(\ds 1 \cdotp 05457 \, 1817 \ldots \times 10^{-34} \, \mathrm {J \, s}\) This sequence is A254181 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008).
\(\ds \) \(=\) \(\ds 1 \cdotp 05457 \, 1817 \ldots \times 10^{-27} \, \mathrm {erg \, s}\)