cuquantum.custatevec.collapse_by_bitstring¶

cuquantum.custatevec.collapse_by_bitstring(intptr_t handle, intptr_t sv, int sv_data_type, uint32_t n_index_bits, bit_string, bit_ordering, uint32_t bit_string_len, double norm)[source]¶

Collapse the statevector to the state specified by the given bit string.

Parameters

handle (intptr_t) – The library handle.
sv (intptr_t) – The pointer address (as Python int) to the statevector (on device).
sv_data_type (cuquantum.cudaDataType) – The data type of the statevector.
n_index_bits (uint32_t) – The number of index bits.
bit_string –
A host array of a bit string. It can be
- an int as the pointer address to the array
- a Python sequence of bits
bit_ordering –
A host array of bit string ordering. It can be
- an int as the pointer address to the array
- a Python sequence of bit ordering
bit_string_len (uint32_t) – The length of bit_string.
norm (double) – The normalization factor for the statevector after collapse.