Innovation Owner
นาย Siridech Boonsang
Advisor
Details
CiRAQ is a browser-based tool that simulates quantum spin dynamics using the Lindblad master equation. It allows users to visualize RF pulse sequences, FID signals, and Bloch spheres, while also providing a module for Quantum Reservoir Computing.
CiRAQ is a browser-based tool that simulates quantum spin dynamics using the actual Lindblad master equation, rather than simple animations. Users can place gates in a circuit editor to visualize real RF pulse sequences, FID signals, spectra, and Bloch spheres that evolve according to physical laws. This helps users understand the timing and coherence loss of quantum gates on NMR machines, along with a second module for studying qubit-boson quantum reservoirs used in Quantum Reservoir Computing.
Objective
Key features include real density matrix simulation, multi-view visualization, and a Quantum Reservoir Computing module. The tool runs entirely in the browser without a backend.
Key Features • Real Density Matrix Simulation — 2ⁿ density matrix solving the Lindblad master equation via RK4, supporting arbitrary spin counts with T1/T2 relaxation via collapse operators. • Molecular Library — 5 molecules based on literature parameters: SpinQ 3-spin (¹H·³¹P·¹⁹F), Dimethylphosphite, Chloroform, ¹³C-alanine, and Crotonic acid, covering both heteronuclear and homonuclear systems. • Gate Compilation to Real Pulses — Gates are converted into real-length RF pulses, virtual-Z, and free evolution via J-coupling at t = 1/(2J) for CZ/CNOT. Homonuclear systems use frequency-selective Gaussian pulses where specificity emerges from the detuning-to-bandwidth ratio. • Multi-view Visualization — 3D Bloch spheres from Tr(ρσ), complex FID signals, FFT spectra, |ρ| heatmaps, and measurement probability histograms. • Quantum Reservoir Computing Module — Jaynes-Cummings reservoir (qubit ⊗ Fock cavity) based on Das, Giorgi, and Zambrini, Phys. Rev. Research 8, 023148 (2026). Supports switching between JC and dispersive regimes, displaying Wigner functions with quantum negativity, Fock state populations, and fading memory behavior. • Physical Validation — 5 test suites with 114 assertions covering Tr(ρ)=1, Hermiticity, T1/T2 rates, J-coupling peak separation, and gate fidelity > 0.999 compared to ideal unitaries. • Easy Deployment — Runs entirely in the browser with no backend required, utilizing math.js and Three.js, making it suitable for classrooms without dedicated processing hardware.