symop.polynomial.kernels

Polynomial measurement kernel package.

This package contains backend implementations of measurement operations for the polynomial state representation.

Measurement kernels implement the runtime evaluation of semantic measurement actions, translating high-level measurement intents into concrete operations on polynomial states.

Supported measurement intents include:

• observe:

  Evaluate full probability distributions without modifying the state.

• detect:

  Sample a measurement outcome and return the corresponding post-measurement state.

• postselect:

  Condition on a specified outcome and return the corresponding branch.

Structure

The package is organized by measurement type:

• number:

  Photon-number measurement kernels, including single-target and joint per-port measurements.

• registry:

  Registration helpers that bind measurement kernels to the global MeasurementKernelRegistry.

Notes

Measurement kernels are selected dynamically based on:

• device kind (e.g. NUMBER_DETECTOR)

• measurement intent (observe / detect / postselect)

• representation kind (e.g. POLY)

• input state kind (ket or density)

This package only contains polynomial-specific implementations. Other representations (e.g. Gaussian) are expected to provide analogous packages.

Modules

devices	Polynomial device kernels.
measurements	Polynomial measurement kernels.