75 citations · 250 across the 18 of their papers we have counts for
18 papers
Trade-off Relation for Black Hole Entropy Fluctuations
Kensuke Gallock-Yoshimura, Yoshihiko Hasegawa
Black holes respond to infalling quantum matter fields by changing their entropy. Since such matter is quantum in nature, the entropy response should be sensitive to its quantum fl…
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…
Exact treatment of the memory kernel under time-dependent system-environment coupling via a train of delta distributions
Yuta Uenaga, Kensuke Gallock-Yoshimura, Takano Taira
Memory effects in a quantum system coupled to an environment are one of the central features in the theory of open quantum systems. The dynamics of such quantum systems are typical…
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,…
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…
Decoherence of spin superposition state caused by a quantum electromagnetic field
Kensuke Gallock-Yoshimura, Yuuki Sugiyama, Akira Matsumura +1
In this study, we investigate the decoherence of a spatially superposed electrically neutral spin- particle in the presence of a relativistic quantum electromagnetic field…
Relativistic quantum Otto engine: Instant work extraction from a quantum field
Kensuke Gallock-Yoshimura
In this study, we carry out a non-perturbative approach to a quantum Otto engine, employing an Unruh-DeWitt particle detector to extract work from a quantum Klein-Gordon field in a…
Correlation harvesting between particle detectors in uniform motion
Lana Bozanic, Manar Naeem, Kensuke Gallock-Yoshimura +1
We investigate the correlation harvesting protocol using two Unruh-DeWitt particle detectors moving along four classes of uniformly accelerated trajectories categorized by Letaw: l…
Quantum Otto engine driven by quantum fields
Kensuke Gallock-Yoshimura, Vaishant Thakur, Robert B. Mann
We consider a quantum Otto engine using an Unruh-DeWitt particle detector model which interacts with a quantum scalar field in curved spacetime. We express a generic condition for…
Tripartite Entanglement Extraction from the Black Hole Vacuum
Ireneo James Membrere, Kensuke Gallock-Yoshimura, Laura J. Henderson +1
The first investigation of tripartite entanglement harvesting in the vicinity of a black hole is carried out. Working in the context of a static Bañados-Teitelboim-Zanelli (BTZ) bl…
Extraction of entanglement from quantum fields with entangled particle detectors
Dyuman Bhattacharya, Kensuke Gallock-Yoshimura, Laura J. Henderson +1
We consider two initially entangled Unruh-DeWitt particle detectors and examine how the initial entanglement changes after interacting with a quantum scalar field. As initially non…
Mutual information harvested by uniformly accelerated particle detectors
Manar Naeem, Kensuke Gallock-Yoshimura, Robert B. Mann
We investigate the mutual information harvesting protocol for two uniformly accelerated particle detectors. We numerically show that, while a single detector responds as if it is i…
Entanglement harvesting of three Unruh-DeWitt detectors
Diana Mendez-Avalos, Laura J. Henderson, Kensuke Gallock-Yoshimura +1
We analyze a tripartite entanglement harvesting protocol with three Unruh-DeWitt detectors adiabatically interacting with a quantum scalar field. We consider linear, equilateral tr…
Harvesting mutual information from BTZ black hole spacetime
Kendra Bueley, Luosi Huang, Kensuke Gallock-Yoshimura +1
We investigate the correlation harvesting protocol for mutual information between two Unruh-DeWitt detectors in a static BTZ black hole spacetime. Here, the effects coming from com…
Instant Extraction of Non-Perturbative Tripartite Entanglement
Diana Méndez Avalos, Kensuke Gallock-Yoshimura, Laura J. Henderson +1
We consider the problem of extracting tripartite entanglement through single local instantaneous interactions of a separable target system A-B-C with a scalar field. We find, non-p…
Channel capacity of relativistic quantum communication with rapid interaction
Erickson Tjoa, Kensuke Gallock-Yoshimura
In this work we study nonperturbatively the transmission of classical and quantum information in globally hyperbolic spacetimes, where the communication channel is between two qubi…
Entangled Detectors Nonperturbatively Harvest Mutual Information
Kensuke Gallock-Yoshimura, Robert B. Mann
We investigate how entangled inertial Unruh-DeWitt detectors are affected by interaction with a quantum field using a nonperturbative method. Inertial detectors in a -dimens…
Harvesting Entanglement with Detectors Freely Falling into a Black Hole
Kensuke Gallock-Yoshimura, Erickson Tjoa, Robert B. Mann
We carry out the first investigation of the entanglement and mutual information harvesting protocols for detectors freely falling into a black hole. Working in -dimensional…