#LinearOptics
June 18, 2025 at 10:22 PM
Discovered conserved quantities (invariants) in quantum light circuits that fundamentally limit which quantum states can be prepared. These mathematical constraints provide essential guidelines for designing practical quantum photonic systems.

#QuantumPhotonics #LinearOptics #QuantumHardware
Lie Algebraic Invariants in Quantum Linear Optics
quantum-journal.org
June 14, 2026 at 2:26 AM
New type-I fusion gate achieves 75% success probability using only 4 ancillary single photons and passive linear optics—eliminating costly entangled Bell-pair ancillas. Reduces photon overhead for large entangled state generation by up to 2x.

#PhotonicQuantumComputing #LinearOptics #Research
Single-Photon-Boosted Type-I Fusion Gates for Linear-Optical Quantum Computing
iq.fp2.dev
March 31, 2026 at 2:53 AM
MPLC-based free-space interferometers implement arbitrary M-mode unitary transforms requiring only O(M) phase planes—not O(M²)—experimentally validated on up to 16 spatial pixel modes including Hadamard, Bell-state measurement, and permutation unitaries.

#QuantumPhotonics #LinearOptics #Research
Programmable Pixel-Mode Linear Interferometers via Multi-Plane Light Conversion
iq.fp2.dev
March 18, 2026 at 1:49 AM