97 citations · 1.7k across the 76 of their papers we have counts for
30 papers · 1 filter
Real-time pseudo entropy and modular-Hamiltonian correlations
Tatsuhiro Misumi
Pseudo entropy is a complex-valued generalization of entanglement entropy defined from a reduced transition matrix. We study the pseudo entropy associated with a real-time transiti…
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…
Exact WKB in all sectors II: Potentials with non-degenerate saddles
Tatsuhiro Misumi, Cihan Pazarbaşı
We discuss the exact quantization of general one-dimensional potentials in view of the exact-WKB formalism. Building on our previous work, we perform analytic continuations across…
Fractional instantons in 2d model and 4d Yang-Mills theory with 't Hooft twists
Yui Hayashi, Tatsuhiro Misumi, Muneto Nitta +2
We derive the explicit formula for fractional BPS lumps (or fractional instantons) in the nonlinear sigma model on a two-dimensional torus under various shift-c…
Monopole-vortex continuity of super Yang-Mills theory on with 't Hooft twist
Yui Hayashi, Tatsuhiro Misumi, Yuya Tanizaki
We study super Yang-Mills (SYM) theory on with the 't Hooft twist. The theory becomes weakly coupled if the le…
Exact WKB in all sectors I: Potentials with degenerate saddles
Tatsuhiro Misumi, Cihan Pazarbaşı
We explore the exact-WKB (EWKB) method through the analysis of Airy and Weber types, with an emphasis on the exact quantization of locally harmonic potentials in multiple sectors.…