symop.polynomial.channels.models¶

Concrete photonic channel models for symbolic CCR polynomials.

This package provides ready-to-use implementations of common linear optical transformations expressed in terms of the symbolic polynomial rewrite primitives. The models correspond to standard photonic devices such as beamsplitters, phase shifters, interferometers, and loss channels.

Each model constructs the appropriate linear or dilation map and applies it to ket, density, or operator polynomial representations.

Modules¶

beamsplitter: Passive two-mode beamsplitter transformations.
phase: Single-mode phase-shift transformations.
mzi: Mach–Zehnder interferometer built from beamsplitters and phase shifts.
pure_loss: Bosonic pure-loss channel implemented via beamsplitter dilation.
amplifier: Phase-insensitive bosonic amplification channel.

Notes

These models are thin wrappers around the primitive rewrite operations defined in symop.polynomial.channels.primitives and are intended to provide convenient high-level building blocks for photonic simulations.

Modules

`amplifier`	Amplifier channels for symbolic density polynomials.
`beamsplitter`	Beamsplitter models for CCR polynomial representations.
`mzi`	Mach-Zehnder interferometer models for CCR polynomial representations.
`phase`	Phase-shifter models for CCR polynomial representations.
`pure_loss`	Pure-loss channels for symbolic density polynomials.