Class TempLat::SU2Field

template <typename T, size_t _NDim>

ClassList > TempLat > SU2Field

A class which implements a SU2 field (group). We choose a representation with 4 real numbers per lattice site, c0, c1, c2, c3. These are subject to the unitarity constraint c0^2 + c1^2 + c2^2 + c3^2 = 1, which can be enforced by the unitarize() method. A single link variable is then represented as U = c0 * I + i * (c1 * sigma1 + c2 * sigma2 + c3 * sigma3), where sigma1, sigma2, sigma3 are the Pauli matrices. More...

#include <su2field.h>

Public Types

Type	Name
typedef SU2Getter	Getter

Public Static Attributes

Type	Name
constexpr size_t	NDim = `\_NDim`
constexpr size_t	SHIFTIND = `0`
constexpr size_t	numberToSkipAsTuple = `0`
constexpr size_t	size = `4`

Public Functions

Type	Name
	SU2Field (Field< T, NDim > f0, Field< T, NDim > f1, Field< T, NDim > f2, Field< T, NDim > f3)
	SU2Field (std::string name, device::memory::host_ptr< MemoryToolBox< NDim > > toolBox, LatticeParameters< T > pLatPar=LatticeParameters< T >())
const auto &	SU2Get (Tag< N > t) const
device::Idx	confirmGhostsUpToDate () const
void	confirmSpace (const LayoutStruct< NDim > & newLayout, const SpaceStateType & spaceType) const
void	doWeNeedGhosts () const
DEVICE_INLINE_FUNCTION auto	eval (const IDX &... idx) const
auto	getDx () const
auto	getKIR () const
auto	getToolBox () const
auto &	operator() (Tag< M > t)
const auto &	operator() (Tag< M > t) const
void	operator= (R && r)
std::string	toString () const
void	unitarize ()
void	updateGhosts ()

Protected Attributes

Type	Name
device::array< Field< T, NDim >, 4 >	fs
LayoutStruct< NDim >	mLayout
const device::memory::host_string	mName

Detailed Description

Unit test: ctest -R test-su2field

@vocab-summary A single \(SU(2)\) link \(U\_i\) for fixed \(i\), held as four reals \(c\_0\dots c\_3\) with \(U = c\_0\mathbb{1} + i\,c\_a\sigma\_a\) and \(\sum\_a c\_a^2 = 1\). unitarize() restores the constraint after accumulated rounding. @vocab-signature SU2Field<T, NDim> U("U", toolBox);

Public Types Documentation

typedef Getter

using TempLat::SU2Field< T, _NDim >::Getter =  SU2Getter;

Public Static Attributes Documentation

variable NDim

constexpr size_t TempLat::SU2Field< T, _NDim >::NDim;

variable SHIFTIND

constexpr size_t TempLat::SU2Field< T, _NDim >::SHIFTIND;

variable numberToSkipAsTuple

constexpr size_t TempLat::SU2Field< T, _NDim >::numberToSkipAsTuple;

variable size

constexpr size_t TempLat::SU2Field< T, _NDim >::size;

Public Functions Documentation

function SU2Field [1/2]

inline TempLat::SU2Field::SU2Field (
    Field < T, NDim > f0,
    Field < T, NDim > f1,
    Field < T, NDim > f2,
    Field < T, NDim > f3
)

function SU2Field [2/2]

inline TempLat::SU2Field::SU2Field (
    std::string name,
    device::memory::host_ptr < MemoryToolBox < NDim > > toolBox,
    LatticeParameters < T > pLatPar=LatticeParameters < T >()
)

function SU2Get

template<int N>
inline const auto & TempLat::SU2Field::SU2Get (
    Tag < N > t
) const

function confirmGhostsUpToDate

inline device::Idx TempLat::SU2Field::confirmGhostsUpToDate () const

function confirmSpace

inline void TempLat::SU2Field::confirmSpace (
    const LayoutStruct < NDim > & newLayout,
    const SpaceStateType & spaceType
) const

function doWeNeedGhosts

inline void TempLat::SU2Field::doWeNeedGhosts () const

function eval

template<typename... IDX>
inline DEVICE_INLINE_FUNCTION auto TempLat::SU2Field::eval (
    const IDX &... idx
) const

function getDx

inline auto TempLat::SU2Field::getDx () const

function getKIR

inline auto TempLat::SU2Field::getKIR () const

function getToolBox

inline auto TempLat::SU2Field::getToolBox () const

function operator()

template<int M>
inline auto & TempLat::SU2Field::operator() (
    Tag < M > t
)

function operator()

template<int M>
inline const auto & TempLat::SU2Field::operator() (
    Tag < M > t
) const

function operator=

template<typename R>
inline void TempLat::SU2Field::operator= (
    R && r
)

function toString

inline std::string TempLat::SU2Field::toString () const

function unitarize

inline void TempLat::SU2Field::unitarize ()

function updateGhosts

inline void TempLat::SU2Field::updateGhosts ()

Protected Attributes Documentation

variable fs

device::array<Field<T, NDim>, 4> TempLat::SU2Field< T, _NDim >::fs;

variable mLayout

LayoutStruct<NDim> TempLat::SU2Field< T, _NDim >::mLayout;

variable mName

const device::memory::host_string TempLat::SU2Field< T, _NDim >::mName;

The documentation for this class was generated from the following file cosmolatticeweb/tmp/code_source/templat/include/TempLat/lattice/algebra/su2algebra/su2field.h