6 papers
Boosting Gravity-Induced Entanglement through Parametric Resonance
Yuka Shiomatsu, Youka Kaku, Akira Matsumura +1
Establishing quantum gravity theory remains one of the major challenges in modern physics, as the lack of experimental evidence makes it difficult to explore. In response to this c…
Sudden Decoherence by Resonant Particle Excitation for Testing Gravity-Induced Entanglement
Youka Kaku, Akira Matsumura, Tomohiro Fujita
We propose a novel method to probe gravity-induced entanglement. We consider the gravitational interaction between a particle trapped in a shallow potential and a harmonic oscillat…
Inverted Oscillators for Testing Gravity-induced Quantum Entanglement
Tomohiro Fujita, Youka Kaku, Akira Matsumura +1
In the quest for quantum gravity, we have lacked experimental verification, hampered by the weakness of gravity and decoherence. Recently, various experiments have been proposed to…
Toward graviton detection via photon-graviton quantum state conversion
Taiki Ikeda, Youka Kaku, Sugumi Kanno +1
A magnetic field enables the interconversion of photons and gravitons, yet the process is usually analysed only at the level of classical wave equations. We revisit photon-graviton…
The Role of Quantum Measurements when Testing the Quantum Nature of Gravity
Daisuke Miki, Youka Kaku, Yubao Liu +2
In order to test the quantum nature of gravity, it is essential to explore the construction of classical gravity theories that are as consistent with experiments as possible. In pa…
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…