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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…
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…