3 papers
quant-ph2025
Exact WKB method for radial Schrödinger equation
Okuto Morikawa, Shoya Ogawa
We revisit exact WKB quantization for radial Schrödinger problems from the modern resurgence perspective, with emphasis on how ``physically meaningful'' quantization paths should b…
hep-th2025
Unified exact WKB framework for resonance -- Zel'dovich/complex-scaling regularization and rigged Hilbert space
Okuto Morikawa, Shoya Ogawa
We develop a unified framework for analyzing quantum mechanical resonances using the exact WKB method. The non-perturbative formulation based on the exact WKB method works for inco…
hep-th2025
Nonperturbative Formulation of Resonances in Quantum Mechanics Based on Exact WKB Method
Okuto Morikawa, Shoya Ogawa
We study quasi-stationary states in quantum mechanics using the exact Wentzel--Kramers--Brillouin (WKB) analysis as a nonperturbative framework. Whereas previous works focused main…