45 citations · 298 across the 19 of their papers we have counts for
20 papers
Thermalization in a repeated-interaction model with memory effects
Kanji Nishii, Ryo Nagai, Yoshihiko Abe
We study how memory affects the thermalization of a qubit in a repeated-interaction model. In our model, a memory qubit interacts repeatedly with the system, while both qubits unde…
Bottom-up open EFT for non-Abelian gauge theory with dynamical color environment
Yoshihiko Abe, Kanji Nishii
We develop a bottom-up open effective field theory (EFT) for non-Abelian gauge theories within the Schwinger--Keldysh formalism. Instead of integrating out the environment complete…
Quantum Riemannian Hamiltonian Descent
Yoshihiko Abe, Ryo Nagai
We propose Quantum Riemannian Hamiltonian Descent (QRHD), a quantum algorithm for continuous optimization on Riemannian manifolds that extends Quantum Hamiltonian Descent (QHD) by…
Fermion Hierarchies in Grand Unification from Modular Flavor Symmetry
Yoshihiko Abe, Tetsutaro Higaki, Junichiro Kawamura +1
We construct a model in which the hierarchies of the quark and lepton masses and mixing are explained by the modular flavor symmetry. The hierarchies are realized by t…
Black Hole Extremality in Nonlinear Electrodynamics: A Lesson for Weak Gravity and Festina Lente Bounds
Yoshihiko Abe, Toshifumi Noumi, Kaho Yoshimura
We study black hole extremality in nonlinear electrodynamics motivated by the Weak Gravity Conjecture (WGC) and the Festina Lente (FL) bound. For illustration, we consider the Eule…
Moduli inflation from modular flavor symmetries
Yoshihiko Abe, Tetsutaro Higaki, Fumiya Kaneko +2
We study slow-roll inflation model controlled by the modular flavor symmetry. In the model, the modulus field plays a role of inflaton and the introduction of the stabilizer field…