Template Function Pennylane::LightningQubit::Gates::AVXCommon::toParity

• Defined in File AVXUtil.hpp

Function Documentation

template<typename PrecisionT, size_t packed_size, typename Func>
auto Pennylane::LightningQubit::Gates::AVXCommon::toParity(Func &&func) -> AVXIntrinsicType<PrecisionT, packed_size>

For a function \(f(x)\) with binary output, this function creates an AVX intrinsic floating-point type with values \((-1)^{f(x)}\) where \(x\) is index of an array (viewed as a complex-valued array).

For example, when \(f(x) = x % 2\), this returns a packed array with values [1, 1, -1, -1, 1, 1, -1, -1]. Note that each value is repeated twice as it applies to the both real and imaginary parts. This function is used e.g. in CZ gate.

Template Parameters

• PrecisionT – Floating point precision type

• packed_size – Number of packed values for a AVX intrinsic type

• Func – Type of a function

Parameters

func – Binary output function

api/function_AVXUtil_8hpp_1a52482e17029a7e5b3e44b1952fbd8ed8

 

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