mindquantum.core.operators.up_index

mindquantum.core.operators.up_index(index)

Up index getter function.

The index order, by default we set the spinless orbits as even-odd-even-odd (0,1,2,3,…). The spin_up orbitals (alpha orbitals) with index even.

Parameters

index (int) – spatial orbital index.

Returns

int, the index of the associated spin-up orbital.

Examples

>>> from mindquantum.core.operators import up_index
>>> up_index(1)
2