How do you type the h-bar(ℏ) symbol in LaTeX?

You can print the h-bar or Reduced Plank constant by default \hbar command in the latex document.

Symbol H-bar
Type of symbol Mathematics
Package (requirement) No
Argument No
Latex command \hbar
Example \hbar → ℏ
   \[ E = \hbar \omega \]
   \[ \hbar = \frac{h}{2\pi} \]
   \[ p = \hbar K \] 

Output :

 H-bar symbol.

And different packages have the same command, which returns the same output. Examples are amsmath, fdsymbol, and boisik.

There is another type of h-bar symbol in latex that has structural light differences. For this, take help of boisik package.

   \[ J^2 = j(j+1)^2 \hslash  \]
   \[ J_z = m \hslash \]
   \[ \Delta x . \Delta p \geq \frac{\hslash}{2} \]

Output :

 H-bar symbol

Use another package for h-bar symbol in LaTeX like tipa, wsuipa, phonetic, etc.

The following program uses four different packages and different commands to define the same h-bar symbol.

Command (package) Symbol
\textcrh (tipa)
\crossh (wsuipa)
\plank (phonetic)
\textcrh (t4phonet)

\usepackage{tipa, phonetic, wsuipa}
   $ p^u = \textcrh K^u $\\[6pt]
   $ p^N $ = \planck $\left(\frac{w}{c}, \vec{K} \right) $\\[6pt]
   \crossh = 1.056 $ \times 10^{-34} J.S $

Output :

H-bar symbol

When you came from the Last Paragraph of this tutorial, then I hope you’ve got your answer like the mind that you wanted.

Md Jidan Mondal

LaTeX expert with over 10 years of experience in document preparation and typesetting. Specializes in creating professional documents, reports, and presentations using LaTeX.

Leave a Comment

Your email address will not be published. Required fields are marked *