General Photon Subtraction from a Gaussian Perspective

arXiv:2609.34803 · quant-ph · Submitted 2026-09-28 · Read on arXiv

quant-ph

Submitted: 2026-09-28

Updated: 2026-09-28

Terminology

• Wigner function — 23× in this paper · explained in 2 episodes
• Post-Selection — 17× in this paper · explained in 2 episodes
• Non-Gaussianity — 14× in this paper · explained in 2 episodes
• Entanglement — 5× in this paper · explained in 4 episodes
• Adaptation — 1× in this paper · explained in 1 episode
• Deep Reinforcement Learning — 1× in this paper · explained in 2 episodes
• Distillation — 1× in this paper · explained in 2 episodes
• Quantum Circuits — 1× in this paper · explained in 2 episodes
• Reinforcement Learning — 1× in this paper · explained in 4 episodes
• Riemannian optimization — 1× in this paper · explained in 2 episodes

Sources

• The Octo-Rail Lattice: a four-dimensional cluster state design
• A full-stack analog optical quantum computing platform with one hundred inputs
• The Computational Complexity of Linear Optics
• Using Gaussian Boson Samplers to Approximate Gaussian Expectation Problems
• Estimating the Percentage of GBS Advantage in Gaussian Expectation Problems
• Generation of photonic non-Gaussian states by measuring multimode Gaussian states
• Fast simulations of continuous-variable circuits using the coherent state decomposition
• Non-Gaussian states for continuous variable quantum computation via Gaussian maps
• Nonlinear feedforward enabling quantum computation
• The loss tolerance of cat breeding for fault-tolerant grid state generation
• Extensible universal photonic quantum computing with nonlinearity
• Picosecond Schr\"odinger cat states for ultrafast optical quantum processing
• Deterministic feedforward-based generation of large optical coherent-state superposition
• Beyond Stellar Rank: Control Parameters for Scalable Optical Non-Gaussian State Generation
• Entanglement transformations of pure Gaussian states
• Gaussian states and operations -- a quick reference

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• Theory of quantum-enhanced interferometry with general Markovian light sources
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• Universal Bound and Phase Transition in Many-Body Fermionic Non-Gaussianity