x_{a}^{+}\qquad x_{\tilde{a}}^{+}

enter image description here

Is there a simple way to make the first "a" the same height as the second one? The problem doesn't occur when the superscripts are removed.

  • 1
    Welcome to TeX.SE! Can you please add an screenshot of your result to your question?
    – Mensch
    Nov 6, 2021 at 23:48

1 Answer 1


You can add \vphantom{\tilde{a}} in the first subscript to indicate that the height should be at least the height of a \tilde{a}. Then the subsripts have the same height ad are therefore positioned in the same way:

x_{a\vphantom{\tilde{a}}}^{+}\qquad x_{\tilde{a}}^{+}
  • Yes, this seems perfect!
    – user8463
    Nov 7, 2021 at 0:02

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