284 citations · 1.2k across the 40 of their papers we have counts for
40 papers
F-theory on K3 surfaces and orthogonal modular forms
Kazuhiro Sakai
We identify the precise F-theory backgrounds dual to the heterotic string theory compactified on with general Wilson lines turned on for one of the two 's. The elliptic…
E-strings, , and triality
Kazuhiro Sakai
We study the E-string theory on with Wilson lines. We consider two examples where interesting automorphisms arise. In the first example, the spectrum is in…
Late time behavior of -point spectral form factors in Airy and JT gravities
Takanori Anegawa, Norihiro Iizuka, Kazumi Okuyama +1
We study the late time behavior of -point spectral form factors (SFFs) in two-dimensional Witten-Kontsevich topological gravity, which includes both Airy and JT gravities as spe…
Spectral form factor in the -scaling limit
Kazumi Okuyama, Kazuhiro Sakai
We study the spectral form factor (SFF) of general topological gravity in the limit of large time and fixed temperature. It has been observed recently that in this limit, called th…
Algebraic construction of Weyl invariant Jacobi forms
Kazuhiro Sakai
We study the ring of Weyl invariant weak Jacobi forms. Wang recently proved that the ring is not a polynomial algebra. We consider a polynomial algebra which contains the rin…
Page curve from dynamical branes in JT gravity
Kazumi Okuyama, Kazuhiro Sakai
We study the Page curve of an evaporating black hole using a toy model given by Jackiw-Teitelboim gravity with Fateev-Zamolodchikov-Zamolodchikov-Teschner (FZZT) antibranes. We tre…