Hi guys(adsbygoogle = window.adsbygoogle || []).push({});

Ok, lets say I have a matrix given by

[tex]

M = \sum_{ij}M_{ij}a_i^\dagger a_j,

[/tex]

and I wish to transform it. Now in some books I have read they write the transformation as

[tex]

s = \sum_{j}U_{ij}a_j,

[/tex]

while in some notes I have read they write it as

[tex]

s = \sum_{j}U^\dagger_{ij}a_j.

[/tex]

What is the deal here? What is the proper way of doing this?

Kind regards,

Niles.

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# Matrix Transformations

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