45 citations · 298 across the 19 of their papers we have counts for
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quant-ph2026
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…
hep-th2026
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…
quant-ph2026
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…