H. Kawai

activity

20202026

most citedOptical and X-ray observations of stellar flares on an active M dwarf AD Leonis with Seimei Telescope, SCAT, NICER and OISTER

69 citations · 117 across the 7 of their papers we have counts for

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hep-th2026

Spin Chains from large- $N$ QCD at strong coupling

David Berenstein, Hiroki Kawai

We study the strong coupling expansion of large $N$ QCD in various dimensions, reformulating the Kogut-Susskind Hamiltonian on a square lattice in terms of (constrained) one dimens…

hep-th2025★ 1 cited

Integrability and Conformal Blocks for Surface Defects in $N = 4$ SYM

Adolfo Holguin, Hiroki Kawai

We study various aspects of half-BPS surface defect operators in $N = 4$ SYM. For defects on generic points on the moduli space we use superconformal symmetry to fix the fo…

Spin Chains from large-N QCD at strong coupling

Integrability and Conformal Blocks for Surface Defects in N=4 SYM

Spin Chains from large- $N$ QCD at strong coupling

Integrability and Conformal Blocks for Surface Defects in $N = 4$ SYM