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dft_tools/doc/reference/c++/gf/contents.rst

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.. _greenfunctions:
The Green function class
========================
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The TRIQS library has a class called ``gf`` which allows you to use easily a whole set of Green functions.
You can use as variable(s)
* real time(s),
* real frequency(ies),
* Matsubara time(s),
* Matsubara frequency(ies),
* or other variables that you can define.
More generally, the variable is a point of a ``domain``
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The value of the Green function on a point of the domain can be a scalar, a matrix or whatever you want (this type is called type ``target_t``).
You can group several green functions into *blocks* (for example, one block per orbital, or per wave vector...).
Fourier transforms are implemented for these Green functions:
real time <-> real frequency
Matsubara time <-> Matsubara frequency
.. toctree::
:maxdepth: 2
concepts
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meshes
the_four_basic_GFs
fourier
cookbook/contents