use-quantum

Small quantum physics scalar helpers for RustUse.

Install

[dependencies]
use-quantum = "0.0.1"

Foundation

use-quantum provides small quantum physics scalar helpers for photon energy, matter waves, uncertainty estimates, simple Bohr-model relations, and quantum number validation.

Inputs are expected to be SI-style numeric values unless a function name explicitly says electron volts.

The crate keeps only a few local convenience constants. Broader physical constants belong in the top-level use-constants set. Unit abstractions belong in use-units. Wave abstractions belong in use-wave. Particle classification belongs in use-particle.

Example

use use_quantum::{Photon, QuantumNumbers, RYDBERG_ENERGY_EV, hydrogen_energy_level_ev};

let photon = Photon::from_wavelength(500.0e-9).ok_or("expected valid wavelength")?;
let quantum_numbers = QuantumNumbers::new(2, 1, 0, 1).ok_or("expected valid quantum numbers")?;

assert!(photon.energy_joules() > 0.0);
assert_eq!(quantum_numbers.spin_projection(), 0.5);
assert_eq!(hydrogen_energy_level_ev(1), Some(-RYDBERG_ENERGY_EV));
# Ok::<(), &'static str>(())

When to use directly

Choose use-quantum when you only need small reusable scalar quantum formulas or validation helpers.

Scope

APIs stay f64-first and unit-agnostic.
This crate is not a quantum simulator, quantum computing library, Hilbert-space library, matrix mechanics library, optics system, wave system, unit system, or full atomic physics package.
General constants belong in use-constants.
Unit abstractions belong in use-units.
Wave abstractions belong in use-wave.
Particle classification belongs in use-particle.

Status

use-quantum is a pre-1.0 crate with a deliberately small scalar API.