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11 papers · 2 filters
Synchronization and estimation of gravity-induced time difference for quantum clocks
Jieci Wang, Tonghua Liu, Jiliang Jing +1
It has recently been reported [\textit{PNAS} \textbf{114}, 2303 (2017)] that, under an operational definition of time, quantum clocks would get entangled through gravitational effe…
Strong Photon Blockade Mediated by Optical Stark Shift in a Single-Atom-Cavity System
Jing Tang, Yuangang Deng, Chaohong Lee
We propose a theoretical scheme to achieve strong photon blockade via a single atom in cavity. By utilizing optical Stark shift, the dressed-state splitting between higher and lowe…
The influence of the Earth's curved spacetime on Gaussian quantum coherence
Tonghua Liu, Shumin Wu, Shuo Cao
Light wave-packets propagating from the Earth to satellites will be deformed by the curved background spacetime of the Earth, thus influencing the quantum state of light. We show t…
Quantum speed-up based on classical-field and moving-qubit
Jianhe Yang, Rongfang Liu, Hong-Mei Zou +2
In this work, we provide a model of a moving-qubit interacting with the multimode cavity, where the qubit is driven by the classical field. We obtain the analytic solution of the d…
The nanosphere phonon laser
Ran Huang, Hui Jing
A phonon laser made from a levitated silica nanosphere held in a controllable optical trap offers a useful tool for studying phonon-photon interactions.
Entanglement dynamics for circularly accelerated two-level atoms coupled with electromagnetic vacuum fluctuations
Jiaozhen She, Jiawei Hu, Hongwei Yu
We investigate, in the framework of open quantum systems, the entanglement dynamics of two circularly accelerated two-level atoms with the same centripetal acceleration interacting…