SpinOps 0.1.0

Fast spin-operator generation in Cython

spinOps

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spinOps is a Python package for performing operations on quantum spin systems. It provides tools for creating and manipulating spin operators, irreducible spherical tensors, and performing quantum state rotations using Wigner D-matrix elements.

Features

• Generate Clebsch-Gordan coefficients and tensor operators.
• Create spin operator matrices (e.g., (I_x), (I_y), (I_z), (I_+), (I_-)).
• Handle fictitious spin-1/2 systems.
• Compute irreducible spherical tensors in PAS ((\rho_1), (\rho_2)).
• Perform rotations using Wigner D-matrix elements.

Installation

Install the package from PyPI:

pip install spinOps

Example

import spinOps

# Create a spin operator matrix for a system of two coupled spin-1/2 nuclei.
# In this example:
#   - The first argument (0) specifies the operator index (e.g., I_x for the first nucleus).
#   - The second argument [1, 1] indicates the spin value for each nucleus, where
#     each entry is twice the actual spin (1 corresponds to 1/2 in this context).
operator = spinOps.createIx(0, [1, 1])

# Print the generated operator matrix to verify its structure and values.
print(operator)