3 files changed, 42 insertions, 0 deletions
diff --git a/src/simulation/mod.rs b/src/simulation/mod.rs
new file mode 100644
index 0000000..290c3e6
--- /dev/null
+++ b/src/simulation/mod.rs
@@ -0,0 +1,5 @@
+pub mod time_evolution;
+pub mod two_level;
+
+#[allow(non_camel_case_types)]
+pub(crate) type c64 = num_complex::Complex<f64>;
diff --git a/src/simulation/time_evolution.rs b/src/simulation/time_evolution.rs
new file mode 100644
index 0000000..61c609e
--- /dev/null
+++ b/src/simulation/time_evolution.rs
@@ -0,0 +1,11 @@
+use super::c64;
+use ndarray::{Array1, Array2};
+
+pub trait MatrixGen {
+    fn gen(t: f64) -> Array2<c64>;
+}
+
+pub trait State {
+    fn fibrate(&self) -> Array1<c64>;
+    fn evolve<G: MatrixGen>(self, t: f64) -> Self;
+}
diff --git a/src/simulation/two_level.rs b/src/simulation/two_level.rs
new file mode 100644
index 0000000..38a65d9
--- /dev/null
+++ b/src/simulation/two_level.rs
@@ -0,0 +1,26 @@
+use super::c64;
+use super::time_evolution::State;
+use ndarray::prelude::*;
+
+pub struct TwoLevel {
+    state: Array1<c64>,
+}
+
+impl TwoLevel {
+    pub fn new(alpha: c64, beta: c64) -> TwoLevel {
+        TwoLevel {
+            state: array![alpha, beta],
+        }
+    }
+}
+
+impl State for TwoLevel {
+    fn fibrate(&self) -> Array1<c64> {
+        self.state.clone()
+    }
+
+    fn evolve<G: super::time_evolution::MatrixGen>(mut self, t: f64) -> Self {
+        self.state = self.state.dot(&G::gen(t));
+        self
+    }
+}