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21 papers · 1 filter
Chlorine and Potassium Enrichment in the Cassiopeia A Supernova Remnant
XRISM collaboration
The elements in the universe are synthesized primarily in stars and supernovae, where nuclear fusion favors the production of even-Z elements. In contrast, odd-Z elements are less…
Higgs and Nambu-Goldstone modes in a spin-1 model with long-range interactions
Daiki Kawasaki, Ippei Danshita
We theoretically study the collective excitations in a spin-1 model with a quadratic Zeeman term and a long-range interaction that decays algebraically with the distance. Usin…
Minimal-doubling and single-Weyl Hamiltonians
Tatsuhiro Misumi
We develop a systematic Hamiltonian formulation of minimally doubled lattice fermions in (3+1) dimensions, derive their nodal structures (structures of zeros), and classify their s…
Spectral instability of parametrized black hole quasinormal modes in the high-overtone limit via the exact WKB analysis
Taiga Miyachi, Ryo Namba, Hidetoshi Omiya +1
We study the asymptotic behavior of parametrized black hole quasinormal modes (QNMs) in the high-overtone limit. To gain insights into their analytical structure, we apply the exac…
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…
Stability of current-carrying states in hard-core bosons with long-range hopping on a square lattice
Yoshihiro Yabuuchi, Ippei Danshita
We investigate the stability of current-carrying states with quasi-momentum in the Bose-condensed phase of the hard-core Bose-Hubbard model on a square lattice, where particles…