文件列表:

.vscode (0, 2023-04-20)
.vscode\settings.json (0, 2023-04-20)
Cargo.lock (27288, 2023-04-20)
Cargo.toml (1202, 2023-04-20)
examples (0, 2023-04-20)
examples\1d_mot.rs (2921, 2023-04-20)
examples\2d_plus_mot_from_oven.rs (6255, 2023-04-20)
examples\benchmark.rs (6837, 2023-04-20)
examples\create_magnetic_grid.rs (724, 2023-04-20)
examples\cross_section.rs (2606, 2023-04-20)
examples\dipole_trap.rs (3141, 2023-04-20)
examples\doppler_limit.rs (7027, 2023-04-20)
examples\molasses_1d.rs (2679, 2023-04-20)
examples\quadrupole_trap.rs (2498, 2023-04-20)
examples\top_trap_with_collisions.rs (5471, 2023-04-20)
license.txt (35147, 2023-04-20)
src (0, 2023-04-20)
src\atom.rs (4555, 2023-04-20)
src\atom_sources (0, 2023-04-20)
src\atom_sources\emit.rs (5240, 2023-04-20)
src\atom_sources\gaussian.rs (5934, 2023-04-20)
src\atom_sources\mass.rs (2939, 2023-04-20)
src\atom_sources\mod.rs (4427, 2023-04-20)
src\atom_sources\oven.rs (11718, 2023-04-20)
src\atom_sources\precalc.rs (6076, 2023-04-20)
src\atom_sources\species.rs (1441, 2023-04-20)
src\atom_sources\surface.rs (4360, 2023-04-20)
src\collisions.rs (17379, 2023-04-20)
src\constant.rs (738, 2023-04-20)
src\destructor.rs (3231, 2023-04-20)
src\dipole (0, 2023-04-20)
src\dipole\force.rs (9964, 2023-04-20)
src\dipole\mod.rs (4271, 2023-04-20)
... ...

# AtomECS > Simulate cold atoms with rust. Paper out now on [arxiv](https://arxiv.org/abs/2105.0***47) **NOTE: Work is ongoing to change the backend from specs to bevy** - see the `bevy` branch and [this issue](https://github.com/TeamAtomECS/AtomECS/issues/3) for details! You can also run a number of demos from the bevy branch in your browser [here](https://teamatomecs.github.io/AtomECSDemos/). [](https://crates.io/crates/atomecs) [](https://docs.rs/atomecs) [](https://github.com/TeamAtomECS/AtomECS/actions/workflows/build.yml) [](https://github.com/TeamAtomECS/AtomECS/actions/workflows/unit-tests.yml) `atomecs` is a rust crate for simulating ultracold atom experiments. It supports numerous features: * Laser-cooling of atoms by optical scattering forces. * Doppler forces on atoms that scatter light, including the random fluctuations that give rise to the Doppler temperature limit. * Magnetic fields, implemented on a grid or through simple analytical models. * Hot atoms generated by an oven. * Hot atoms generated on the surface of a simulation volume (eg, to simulate thermal vapor in a chamber). * Cooling light beams, defined by their detuning and gaussian intensity profiles. * Volumes that define bounds for the simulation. * File output in binary or text format. * Thorough unit testing to ensure simulation results are correct. * Good parallel performance on modern multi-core CPUs. * Simulations can be wrapped using python/matlab, as shown in the [source_optimisation_example](https://github.com/TeamAtomECS/source_optimisation_example) or the [matlab examples](https://github.com/TeamAtomECS/matlab_examples). * Optical dipole force traps. * Confinement of atoms by magnetic fields, e.g. quadrupole and TOP traps. # Getting Started Instructions for installing rust can be found on the [rust website](https://www.rust-lang.org/tools/install), which includes the rust toolchain and `cargo` command line tool. After cloning this repository using git, you can run examples using the `cargo` command line tool, e.g. `cargo run --release --example 1d_mot`. The [matlab examples](https://github.com/TeamAtomECS/matlab_examples) show how to load and plot simulation results. You can build the program documentation using `cargo doc`. ## Data-oriented design `atomecs` follows the data-oriented Entity-Component-System (ECS) pattern, which is implemented using [specs](https://github.com/slide-rs/specs). ECS is well suited to high-performance simulations, and is sufficiently flexible to accomodate changing design goals. _If you are unfamiliar with data-oriented design - for instance, if you come from an object-oriented background - it is strongly recommended that you read up before diving into the code._ Some useful ECS resources are: * Mike Acton's [GDC talk](https://www.youtube.com/watch?v=p65Yt20pw0g), which discusses the advantages of ECS + DOD (in the context of the Unity game engine). * The [specs book](https://specs.amethyst.rs/docs/tutorials/) which describes the ECS used in `atomecs`. * Although written for Unity/C#, the concepts in the [Unity Entities Package Documentation](https://docs.unity3d.com/Packages/com.unity.entities@0.14/manual/ecs_core.html) are very useful to understand. ## Current Limitations * atom-atom interactions are not implemented. Most of our current work deals with atom sources, which have low steady-state number densities, so we haven't implemented this. Results for steady-state 3D MOTs should be interpreted carefully. # Getting Involved Our goal is to make AtomECS user-friendly, with friendly developers! Please feel free to use the issue tracker to ask questions, or join the conversations happening within the issues. If you would like to submit a contribution: * Take a look at the issues page to see if there is something suitable for a new user. * Freely develop and change your own fork. * When a feature is finished, raise a pull request to merge your changes back into the AtomECS repository. The team will openly review your code and suggest changes/improvements. ## The Team The current developers of `atomecs` are: * Dr. [Elliot Bentine](https://github.com/ElliotB256), Oxford * Dr. [Tiffany Harte](https://github.com/tiffanyharte), Cambridge * [Xuhui Chen](https://github.com/Pi-sun), Oxford * [Maurice Zeuner](https://github.com/MauriceZeuner), Cambridge The long term goal for `atomecs` is to have a complete simulation suite for cold atom experiments. If you'd like to get involved in development, please do!

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