cuquantum.custatevec.collapse_by_bit_string

cuquantum.custatevec.collapse_by_bit_string(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 state vector to the state specified by a given bit string.

Parameters
  • handle (intptr_t) – the handle to the cuStateVec library.

  • sv (intptr_t) – state vector.

  • sv_data_type (int) – data type of state vector.

  • n_index_bits (uint32_t) – the number of index bits.

  • bit_string (object) –

    pointer to a host array of bit string. It can be:

    • an int as the pointer address to the array, or

    • a Python sequence of int32_t.

  • bit_ordering (object) –

    pointer to a host array of bit string ordering. It can be:

    • an int as the pointer address to the array, or

    • a Python sequence of int32_t.

  • bit_string_len (uint32_t) – length of bit string.

  • norm (double) – normalization constant.