Display Left Subscript: Is There A Command?

[julian]

I am working with a "ket" $|0>_{loc}$, and I want to display the corresponding "bra" where the subscript $loc$ appears on the left side. The best I can do is this \;_{loc} <0| but this isn't satisfactory: $\;_{loc} <0|$.

Is there a specific command for putting the subscript on the left?

Thanks.

 

[fresh_42]

How about ${}_2H$ which I got from {}_2H ?

 

[julian]

Still doesn't look right: ${}_{loc}<0|$. What's the command for reducing the in-between space?

 

[fresh_42]

Still doesn't look right: ${}_{loc}<0|$. What's the command for reducing the in-between space?

Which in-betweens? What's too far spread? You could use text: ${}_{loc}\text{<0|}$.

 

[DrGreg]

Still doesn't look right: ${}_{loc}<0|$. What's the command for reducing the in-between space?

You should really use "\langle" and "\rangle" instead of "<" and ">" : $${}_{loc}\langle 0|$$ $$|0 \rangle_{loc}$$

 

[julian]

Thanks everybody.

 

[Orodruin]

You should really use "\langle" and "\rangle" instead of "<" and ">" : $${}_{loc}\langle 0|$$ $$|0 \rangle_{loc}$$

Just to mention why: "<" and ">" are binary relations and LaTeX typesets them as such, including additional spacing (apart from actually being different symbols). \langle and \rangle are delimiters just like ), ], and \} and are typeset as such.

Edit: If you use \left and \right, < and > will be equivalent to \langle and \rangle, i.e., \left< is an alias for \left\langle.