qiskit_addon_opt_mapper.converters.SpinToBinary¶

class SpinToBinary[source]¶

Convert all spin variables in the problem to binary variables.

The conversion is done by the relation:

s_i = 1 - 2 b_i

where s_i is a spin variable (in {-1, +1}) and b_i is a binary variable (in {0, 1}).

Class initializer.

Class initializer.

Methods

`__init__`()	Class initializer.
`convert`(problem)	Convert all spin variables in the problem to binary variables.
`interpret`(x)	Convert a solution of the converted (binary) problem back to the original (spin) space.

convert(problem)[source]¶

Convert all spin variables in the problem to binary variables.

interpret(x)[source]¶

Convert a solution of the converted (binary) problem back to the original (spin) space.

For spins we use s = 1 - 2 b.