Gaussian Open Systems

A simulation framework for Gaussian continuous-variable open quantum systems.

This library supports construction, evolution, and analysis of multimode Gaussian states under quadratic Hamiltonians and dissipative channels, including finite-memory environments via pseudomode embedding.

Documentation

• Quickstart
  • Imports
  • 1. Construct a Gaussian state
  • 2. Construct a Gaussian system
  • 3. Evolve the state
  • 4. Evaluate observables
  • 5. Compare to a reference state
  • Notes
  • Next Steps
• Core Concepts
  • Gaussian State Representation
  • Mode Indexing
  • Subsystem Ordering
  • State Mutation Model
  • System Construction
  • Time Evolution
  • Validation and Physicality
  • Finite-Memory Environments
• Examples
  • 1. Validation: Two-Mode Squeezing under Thermal Loss
  • 2. Collective Dissipation: Phase-Dependent Entanglement Generation
  • 3. Finite-Memory Environments: OU Pseudomode Embedding
  • Summary
• API Reference
  • Initial States
  • Systems
  • Solution
  • Metrics
  • Conventions