Function libwalrus::loop_hafnian_eigen(std::vector<double>&)¶
Defined in File eigenvalue_hafnian.hpp
Function Documentation¶
-
double
libwalrus
::
loop_hafnian_eigen
(std::vector<double> &mat) Returns the loop hafnian of a matrix using the algorithm described in A faster hafnian formula for complex matrices and its benchmarking on the Titan supercomputer, arxiv:1805.12498.
This is a wrapper around the templated function loop_hafnian() for Python integration. It accepts and returns double numeric types, and returns sensible values for empty and non-even matrices.
- Return
loop hafnian of the input matrix
- Parameters
mat
: a flattened vector of size \(n^2\), representing an \(n\times n\) row-ordered symmetric matrix.
libwalrus_cpp_api/function_namespacelibwalrus_1a9cad2565998414a847c3032a965e8885
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