Add rust code

10 files changed, 1056 insertions, 5 deletions

diff --git a/.gitignore b/.gitignore
index 86b607b..90216b4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,11 @@
 data*
 plotting.py
 __pycache__
+
+
+#Added by cargo
+#
+#already existing elements are commented out
+
+/target
+**/*.rs.bk
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..61a4282
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,865 @@
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..2b90ded
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "dequantify"
+version = "0.1.0"
+authors = ["Dennis Kobert <dennis@kobert.dev>",
+           "Ruben Erlenstedt <rxy626@gmail.com>"]
+edition = "2018"
+
+[dependencies]
+ocl = "0.19"
+ndarray-linalg = "0.12"
+num-complex = "0.2"
+ndarray = "0.13"
+expm = "0.1"
+
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..d7e9609
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,44 @@
+pub mod plot;
+mod simulation;
+use plot::Graph;
+
+fn main() {
+    println!("Hello, world!");
+    plot::Gnuplot::plot3d(
+        vec![
+            [
+                0.14285714285714296,
+                0.5714285714285717,
+                0.0,
+                0.5714285714285717,
+                0.5714285714285717,
+                0.0,
+            ],
+            [
+                0.11910591478146304,
+                0.5652016093730936,
+                -0.01707887122942119,
+                0.6464319082591804,
+                0.498191752207936,
+                0.0002,
+            ],
+            [
+                0.21910591478146304,
+                0.7652016093730936,
+                -0.01707887122942119,
+                0.6464319082591804,
+                0.498191752207936,
+                0.0002,
+            ],
+            [
+                0.01910591478146304,
+                0.8652016093730936,
+                -0.01707887122942119,
+                0.6464319082591804,
+                0.498191752207936,
+                0.0002,
+            ],
+        ],
+        1,
+    )
+}
diff --git a/src/plot/gnuplot.rs b/src/plot/gnuplot.rs
new file mode 100644
index 0000000..b0d63d8
--- /dev/null
+++ b/src/plot/gnuplot.rs
@@ -0,0 +1,72 @@
+use std::io;
+use std::io::Write;
+use std::path::PathBuf;
+use std::process;
+use std::process::{Command, Stdio};
+
+pub struct Gnuplot;
+
+impl Gnuplot {
+    fn exec_plot(
+        data: Vec<[f64; 6]>,
+        chunk_size: u32,
+        start: usize,
+        end: usize,
+        script: &str,
+    ) -> Result<process::Child, io::Error> {
+        let mut path = PathBuf::from("gnuplot");
+        path.push(script);
+        let mut file = std::fs::File::create("data").expect("could not create data file");
+        let process = Command::new("gnuplot")
+            .args(&[
+                "-e",
+                format!("states={}; start={}; end={}", chunk_size, start, end).as_ref(),
+                "-c",
+                path.to_str().unwrap_or(script),
+            ])
+            .stdin(process::Stdio::piped())
+            .stdout(Stdio::piped())
+            .spawn()
+            .expect("Failed to spawn child process");
+
+        //let stdin = process.stdin.as_mut().expect("Failed to open stdin");
+        for line in data {
+            let line = format!(
+                "{}; {}; {}; {}; {}; {}\n",
+                line[0], line[1], line[2], line[3], line[4], line[5]
+            );
+            file.write_all(line.as_bytes())
+                .expect("Failed to write to stdin");
+        }
+        Ok(process)
+    }
+}
+
+impl super::Graph for Gnuplot {
+    fn plot3d(data: Vec<[f64; 6]>, chunk_size: u32) {
+        let iterations = data.len() / chunk_size as usize;
+        match Gnuplot::exec_plot(data, chunk_size, 1, iterations, "anim3d.plt") {
+            Ok(mut process) => println!("opening gnuplot {:?}", process.wait()),
+            Err(err) => println!("failed to start gnuplot: {}", err),
+        }
+    }
+    fn animate3d(data: Vec<[f64; 6]>, chunk_size: u32, start: usize, end: usize) {
+        match Gnuplot::exec_plot(data, chunk_size, start, end, "anim3d.plt") {
+            Ok(mut process) => println!("opening gnuplot {:?}", process.wait()),
+            Err(err) => println!("failed to start gnuplot: {}", err),
+        }
+    }
+    fn plot2d(data: Vec<[f64; 6]>, chunk_size: u32) {
+        let iterations = data.len() / chunk_size as usize;
+        match Gnuplot::exec_plot(data, chunk_size, 1, iterations, "anim2d.plt") {
+            Ok(mut process) => println!("opening gnuplot {:?}", process.wait()),
+            Err(err) => println!("failed to start gnuplot: {}", err),
+        }
+    }
+    fn animate2d(data: Vec<[f64; 6]>, chunk_size: u32, start: usize, end: usize) {
+        match Gnuplot::exec_plot(data, chunk_size, start, end, "anim2d.plt") {
+            Ok(mut process) => println!("opening gnuplot {:?}", process.wait()),
+            Err(err) => println!("failed to start gnuplot: {}", err),
+        }
+    }
+}
diff --git a/src/plot/mod.rs b/src/plot/mod.rs
new file mode 100644
index 0000000..8773020
--- /dev/null
+++ b/src/plot/mod.rs
@@ -0,0 +1,9 @@
+pub mod gnuplot;
+pub use gnuplot::Gnuplot;
+
+pub trait Graph {
+    fn plot3d(data: Vec<[f64; 6]>, chunk_size: u32);
+    fn animate3d(data: Vec<[f64; 6]>, chunk_size: u32, start: usize, end: usize);
+    fn plot2d(data: Vec<[f64; 6]>, chunk_size: u32);
+    fn animate2d(data: Vec<[f64; 6]>, chunk_size: u32, start: usize, end: usize);
+}
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
+    }
+}
diff --git a/twoqbit_dequantify.py b/twoqbit_dequantify.py
index af2e506..df7267e 100644
--- a/twoqbit_dequantify.py
+++ b/twoqbit_dequantify.py
@@ -17,9 +17,6 @@ M1 = [[0,0,1,0],[0,0,0,1],[1,0,0,0],[0,1,0,0]]
 M2 = [[0,0,-1j,0],[0,0,0,-1j],[1j,0,0,0],[0,1j,0,0]]
 M3 = [[0,0,0,1],[0,0,-1,0],[0,-1,0,0],[1,0,0,0]]
 
-if len(sys.argv) == 3:
-    alpha = complex(sys.argv[1])
-    beta = complex(sys.argv[2])
 
 def init_state(i):
     alpha = 2
@@ -38,8 +35,8 @@ def init_state(i):
     return (state, H)
 
 
-def time_evolution(state, dt = dt):
-    return (npy.dot(state[0], state[1]), state[1])
+def time_evolution(state, dt=dt):
+    return (npy.dot(*state), state[1])
 
 def fibration(state):
     x0=npy.dot(npy.conj(state),npy.dot(M0,state))