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path: root/src/simulation/twoxtwo_level.rs
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use super::c64;
use super::s_5_fibration::*;
use super::time_evolution::State;
use ndarray::prelude::*;

pub struct TwoXTwoLevel {
    state: Array2<c64>,
}

impl TwoXTwoLevel {
    pub fn new(alpha: c64, beta: c64, delta: c64, gamma: c64) -> TwoXTwoLevel {
        TwoXTwoLevel {
            state: array![[alpha], [beta], [gamma], [delta]],
        }
    }
}

impl State for TwoXTwoLevel {
    fn fibrate(&self) -> Vec<f64> {
        let mut conjugate = self
            .state
            .to_owned()
            .into_shape((4, 1))
            .expect("Invalid shape cast during fibartion");
        for val in conjugate.iter_mut() {
            *val = val.conj();
        }
        let v = conjugate.dot(&X3().dot(&self.state))[(0, 0)];

        vec![
            conjugate.dot(&X0().dot(&self.state))[(0, 0)].re,
            conjugate.dot(&X1().dot(&self.state))[(0, 0)].re,
            conjugate.dot(&X2().dot(&self.state))[(0, 0)].re,
            v.re,
            v.im,
        ]
    }

    fn evolve<G: super::time_evolution::MatrixGen>(mut self, t: f64) -> Self {
        self.state = self.state.dot(&G::gen(t));
        self
    }
}