2 files changed, 52 insertions, 0 deletions
diff --git a/libpsi/src/core/component.rs b/libpsi/src/core/component.rs
new file mode 100644
index 0000000..bd18b52
--- /dev/null
+++ b/libpsi/src/core/component.rs
@@ -0,0 +1,51 @@
+use crate::{ColumnVector, Complex, Matrix, VectorMatrix};
+
+pub type QuantumRegister = ColumnVector<Complex<f64>>;
+pub type QuantumBit = ColumnVector<Complex<f64>>;
+
+#[macro_export]
+macro_rules! count {
+    () => { 0 };
+    ($head:expr $(,$tail:expr)*) => { 1 + count!($( $tail ),*) };
+}
+
+#[macro_export]
+macro_rules! qubit {
+    ($(($re:expr, $im:expr)),*) => {
+        {
+            let mut vector = Vec::new();
+            $(
+                vector.push(complex!($re, $im));
+            )*
+            QuantumBit::new(vector)
+        }
+    };
+}
+
+#[macro_export]
+macro_rules! quantum_register {
+    ($($bit:expr),*) => {
+        {
+            const N: usize = count!($($bit),*);
+            let bits: [QuantumBit; N] = [$($bit),*];
+            QuantumRegister::from(&bits)
+        }
+    };
+}
+
+impl QuantumBit {
+    pub fn get_state(&self) -> i32 {
+        (self[1] != Complex::new(0.0, 0.0)) as i32
+    }
+}
+
+impl QuantumRegister {
+    pub fn from(bits: &[QuantumBit]) -> QuantumRegister {
+        let matrices: Vec<Matrix<Complex<f64>>> = bits.iter().map(|bit| bit.to_matrix()).collect();
+        let mut result = matrices[0].clone();
+        for matrix in &matrices[1..] {
+            result = result.kronecker(matrix);
+        }
+        ColumnVector::from_matrix(&result)
+    }
+}
diff --git a/libpsi/src/core/mod.rs b/libpsi/src/core/mod.rs
new file mode 100644
index 0000000..9cea807
--- /dev/null
+++ b/libpsi/src/core/mod.rs
@@ -0,0 +1 @@
+pub mod component;