7 papers
Tomography of a Macroscopic Quantum State influenced by Classical Self-Gravity
Wenjie Zhong, Yubao Liu, Yanbei Chen +2
Macroscopic optomechanical systems offer a promising testbed for distinguishing whether gravity acts as a quantum interaction or as a classical field. Schrodinger-Newton (SN) theor…
Simultaneous Speedmeter and Position-Meter Response in a Single Tabletop Interferometer
Mikhail Korobko, Xiang Li, Torben Sobottke +3
Quantum radiation-pressure noise (QRPN) limits the low-frequency sensitivity of gravitational wave detectors. The established method for suppressing QRPN is the injection of freque…
Testing the quantum nature of gravity through interferometry
Yubao Liu, Yanbei Chen, Kentaro Somiya +1
We propose a Michelson-type interferometric protocol for testing the quantum nature of gravity through testing the phenomenology of semi-classical gravity theory, which predicts a…
Distinguishing Quantum and Classical Gravity via Non-Stationary Test Mass Dynamics
Wenjie Zhong, Yubao Liu, Yiqiu Ma
Classical gravity theory predicts a state-dependent gravitational potential for a quantum test mass, leading to nonlinear Schrodinger-Newton (SN) state evolution that contrasts wit…
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…
Progress of the TianQin project
Jun Luo, Shaojun Bai, Yan-Zheng Bai +97
TianQin is a future space-based gravitational wave observatory targeting the frequency window of Hz Hz. A large variety of gravitational wave sources are expecte…