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quant-ph2025
Bipartite and tripartite entanglement in pure dephasing relativistic spin-boson model
Kensuke Gallock-Yoshimura, Erickson Tjoa
We study nonperturbatively the entanglement generation between two and three emitters in an exactly solvable relativistic variant of the spin-boson model, equivalent to the time-in…
quant-ph2025
Relativistic quantum Otto heat engine using a three-level Unruh-DeWitt detector
Tomoya Hirotani, Kensuke Gallock-Yoshimura
In this study, we explore a relativistic quantum Otto heat engine with a qutrit as the working substance interacting with a quantum scalar field in curved spacetime. Unlike qubits,…
gr-qc2025
Acceleration-induced radiation from a qudit particle detector model
Kensuke Gallock-Yoshimura, Yuki Osawa, Yasusada Nambu
We nonperturbatively examine the emission rate of acceleration-induced radiation from a uniformly accelerated gapless qudit-type Unruh-DeWitt detector. We find that the emission ra…