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hep-th2026
Circuit complexity of coupled four-mode squeezed states in two-field inflation
Tao Li, Hai-Bing Fu, Lei-Hua Liu
We study the circuit complexity of coupled curvature and entropy perturbations in two-field inflation. We start from the quadratic action and derive the full Hamiltonian. The Hamil…
hep-th2026
Krylov complexity and oscillatory quantum dynamics in two-field inflation
Tao Li, Lei-Hua Liu, Hai-Bing Fu
We investigate Krylov-space dynamics of primordial perturbations in two-field inflation. Starting from the quadratic action for coupled curvature and entropy perturbations, we solv…
hep-th2026
Circuit and Krylov complexity of primordial perturbations of modified gravity in inflation
Tao Li, Hai-Bing Fu
Taking canonical scalar field inflation as the reference case, we investigate the circuit and Krylov complexities of primordial curvature perturbations in an \(f(ϕ,R)\) modified gr…