u1.hpp File Reference

Defines U1, the value-level quantum number type for one U(1) symmetry factor. More...

#include <uni20/common/half_int.hpp>
#include <uni20/symmetry/symmetryfactor.hpp>
#include <concepts>
#include <cstdint>
#include <format>
#include <functional>
#include <iosfwd>
#include <limits>
#include <ostream>
#include <stdexcept>
#include <string>
#include <string_view>

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Classes
struct	std::formatter< uni20::U1, CharT >
struct	std::hash< uni20::U1 >
class	uni20::U1
	Value-level quantum number type representing one U(1) irrep. More...

Namespaces
namespace	uni20

Functions
constexpr auto	uni20::degree (U1 value) -> int
	Return the integral degree of a U(1) irrep.
constexpr auto	uni20::dual (U1 value) -> U1
	Return the dual U(1) irrep.
constexpr auto	uni20::operator+ (U1 lhs, U1 rhs) -> U1
	Add two U(1) irreps using charge addition.
constexpr auto	uni20::operator- (U1 lhs, U1 rhs) -> U1
	Subtract two U(1) irreps using charge subtraction.
auto	uni20::operator<< (std::ostream &out, U1 value) -> std::ostream &
	Stream a U(1) irrep in decimal half-integer form.
constexpr auto	uni20::qdim (U1 value) -> double
	Return the quantum dimension of a U(1) irrep.
auto	uni20::to_string (U1 value) -> std::string
	Format a U(1) irrep in decimal half-integer form.
auto	uni20::to_string_fraction (U1 value) -> std::string
	Format a U(1) irrep in fractional n/2 form.

Detailed Description

Defines U1, the value-level quantum number type for one U(1) symmetry factor.

See docs/symmetry/qnum.md for the role of U1 inside the current Symmetry/QNum design.