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7 papers · 2 filters
Enhancing the quantum entanglement and EPR steering of a coupled optomechanical system with a squeezed vacuum field
Shao-Xiong Wu, Cheng-Hua Bai, Gang Li +2
Quantum entanglement and Einstein-Podolsky-Rosen (EPR) steering are valuable resources in quantum information processing. How to enhance the quantum entanglement and EPR steering o…
Exact solutions of a spin-orbit coupling model in two-dimensional central-potentials and quantum-classical correspondence
Jun-Li Xin, Jiu-Qing Liang
In this paper we present both the classical and quantum periodic-orbits of a neutral spinning particle constrained in two-dimensional central-potentials with a cylindrically symmet…
Simultaneous preparation of two optical cat states based on a nondegenerate optical parametric amplifier
Dongmei Han, Na Wang, Meihong Wang +1
The optical cat state, known as the superposition of coherent states, has broad applications in quantum computation and quantum metrology. Increasing the number of optical cat stat…
Remote preparation of optical cat states based on Gaussian entanglement
Dongmei Han, Fengxiao Sun, Na Wang +5
Remote state preparation enables one to prepare and manipulate quantum state non-locally. As an essential quantum resource, optical cat state is usually prepared locally by subtrac…
Simultaneous Quantum Squeezing of Light Polarizations and Atomic Spins in a Cold Atomic Gas
Jinzhong Zhu, Yue Mu, Guoxiang Huang
We present a scheme to realize simultaneous quantum squeezing of light polarizations and atomic spins via a perturbed double electromagnetically induced transparency (DEIT) in a co…
Enhanced phase sensitivity in a Mach-Zehnder interferometer via photon recycling
Dong Li, Chun-Hua Yuan, Xiaoping Ma +4
We propose an alternative scheme for phase estimation in a Mach-Zehnder interferometer (MZI) with photon recycling. It is demonstrated that with the same coherent-state input and h…