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gr-qc2026
Universal Relations for Neutron Stars from Asymptotic Analysis
Syo Kamata, Josuke Minamiguchi, Shuhei Minato
Dimensionless observables of neutron stars, such as the moment of inertia, the tidal deformability, the spin-induced quadrupole moment, and the compactness, satisfy the I--Love--Q…
quant-ph2026
Algebraic Tomography of Non-Hermitian Floquet Systems from Observable Traces
Syo Kamata
We formulate a framework of Floquet algebraic tomography for finite-dimensional non-Hermitian monodromy matrices from observable trace sequences . Since t…
hep-th2026
Exact WKB analysis of inverted triple-well: resonance, PT-symmetry breaking, and resurgence
Syo Kamata, Tatsuhiro Misumi, Cihan Pazarbaşı +1
We study non-Hermitian quantum mechanics of an inverted triple-well potential within the exact WKB framework. For a single classical potential, different Siegert boundary condition…