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gr-qc2026

Squeezed quantum states and partner modes in the moving mirror model of black hole evaporation

Kuan-Nan Lin, Pisin Chen, Michael R. R. Good +1

The standard moving mirror model in (1+1)-dimensional spacetime is known to reproduce several quantum aspects of black hole evaporation. A perfectly reflecting, accelerating mirror…

gr-qc2026

Energy Flux as an Entanglement Current in Moving-Mirror Radiation

Yasusada Nambu, Riku Yoshimoto

In this work, we investigate the quantum entanglement properties of analog Hawking radiation produced by a moving mirror. Using two detector modes defined through window functions…

gr-qc2026

Entanglement Harvesting from Quantum Field: Insights via the Partner Formula

Yuki Osawa, Yasusada Nambu, Riku Yoshimoto

We examine the condition necessary for extracting entanglement from a quantum field through the use of two local modes A and B (detector modes). We show that Simon's entanglement c…

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…

gr-qc2025

Gravitational entanglement witness through Einstein ring image

Youka Kaku, Yasusada Nambu

We investigate the interplay between quantum theory and gravity by exploring gravitational lensing and Einstein ring images in a weak gravitational field induced by a mass source i…

gr-qc2024

Hawking radiation in quantum Hall system with an expanding edge: application of anomaly method

Riku Yoshimoto, Yasusada Nambu

The relationship between gravitational anomalies and Hawking radiation of black holes was revealed by Wilczek and Robinson. In this study, we apply their method to an analogue de S…