954 citations
- The University of TokyoJP11 papers
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3 papers · 1 filter
cond-mat.str-el2026
Entropic crystallization of geometrically frustrated magnets on 1/1 approximant Tsai-type quasicrystal
Oscar Novat, Ludovic D. C. Jaubert, Masafumi Udagawa
We have studied the antiferromagnetic Ising model on the icosahedral bcc lattice, as a model system of 1/1 approximant Tsai-type quasicrystals. We addressed thermal equilibrium pro…
gr-qc2026
Strong deflection of massive particles via the geodesic deviation equation
Takahisa Igata, Yohsuke Takamori
We develop a formulation of the strong deflection limit for the scattering of particles following timelike geodesics in asymptotically flat, static, and spherically symmetric space…
gr-qc2026★ 2 cited
Strong-deflection expansion of the deflection angle near a degenerate photon sphere
Takahisa Igata, Tadashi Sasaki, Naoki Tsukamoto
We present a strong-deflection expansion for the deflection angle of light rays scattered near a degenerate photon sphere in asymptotically flat, static, and spherically symmetric…