# Increase in bracket sizes due to power symbol

I have the following tex code,

$$\ket{f_{\alpha}(\bm{r}+\bm{e}_{\alpha} \Delta t, t+\Delta t)} = \ket{f_{\alpha}(\bm{r},t)} -\bm{M}^{-1}\hat{\bm{S}} (\ket{m_{\alpha}(\bm{r},t)}-\ket{m_{\alpha}^{(eq)}(\bm{r},t)}),$$


which provides the following equation The right-most ket operator is bigger due to the ^(eq). How to bring the ket brace to normal size?

• Can you add the definition of \ket – Salim Bou Sep 23 '16 at 17:23
• It's part of the physics package. You can refer this answer: tex.stackexchange.com/a/214731/44940 – Sathish Sanjeevi Sep 23 '16 at 17:32
• in this answer (actually, a non-answer), Braket size problem, one of the examples uses \smash to diminish the height of what's inside the brakets. that's the approach i'd suggest. if you find that useful, i'll produce a "tailored" solution for this particular example. – barbara beeton Sep 23 '16 at 17:44
• according to texdoc physics you can use \ket* to suppress automatic sizing (see page 8) – David Carlisle Sep 23 '16 at 17:46
• @DavidCarlisle -- thanks for mentioning the physics package. i only knew about braket, and the features and support are different. so what is done depends on which package is actually used. – barbara beeton Sep 23 '16 at 17:55

texdoc physics

you can use \ket* to suppress automatic sizing (see page 6)
• The joys of \left and \right – egreg Sep 23 '16 at 19:54