Resonant Spacetime Hypothesis 2.0

- Method: Modified scalar-vector-tensor (SVT) decomposition with helical phases.  

2. Step-by-Step Implementation

Step 1: Generate Spiral Harmonics

Define the spiral harmonic basis (generalized spherical harmonics):  

```python  

import numpy as np  

import pyssht as ssht  

def spiral_harmonic(n, m, beta, L):  

    # n: radial mode index  

    # m: azimuthal quantum number  

    # beta: spiral tightness ( 0.8 from RSH)