FLUE_SU2_wloops

For wilson-loop (or staple) calculations in SU2

Source: src/wloops_SU2.f90

Dependencies

Contents

• SU2_genPlaquette
• SU2_genericPath

Variables

Name	Type	Attributes	Description
Ident_SU2	complex(kind=WC)	dimension(2, 2), parameter	2x2 Identity matrix in complex variable

Subroutines

SU2_genPlaquette

Calculates the plaquette using genplaquette Outputs the sum over all real trace plaquettes, the number of plaquettes and the time taken Do all plaquettes using mustart=1, muend=4, nuend=4 Do spatial plaquettes using mustart=2, muend=4, nuend=4 Do temporal plaquettes using mustart=1, muend=1, nuend=4

subroutine SU2_genPlaquette(data, NT, NX, NY, NZ, muStart, muEnd, nuEnd, sumTrP, nP, time)

Arguments

Name	Type	Intent	Attributes	Description
data	complex(kind=WC)	in	dimension(2, 2, 4, NT, NX, NY, NZ)	The gaugefield
NT	integer	in		The size of the lattice
NX	integer	in		The size of the lattice
NY	integer	in		The size of the lattice
NZ	integer	in		The size of the lattice
muStart	integer	in		which dimensions to loop over
muEnd	integer	in		which dimensions to loop over
nuEnd	integer	in		which dimensions to loop over
sumTrP	real(kind=WP)	out		Sum of ReTr(P) of all plaquettes
nP	integer	out		Number of plaquettes
time	real(kind=WP)	out		Time taken for calculation

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Functions

SU2_genericPath

Returns the links starting from coordbase multiplied together along path Used to construct wilson loops, staples, etc

Attributes: pure

Returns: complex(kind=WC)

function SU2_genericPath(data, coordBase, path) result(U_xd)

Arguments

Name	Type	Intent	Attributes	Description
data	complex(kind=WC)	in	dimension(:, :, :, :, :, :, 😃	The gaugefield of shape 2,2,4,nt,nx,ny,nz
coordBase	integer	in	dimension(4)	The starting coordinate [it, ix, iy, iz]
path	integer	in	dimension(😃	The path to follow in terms of +ve/-ve mu/nu/etc

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