Patent
Device for simultaneously generating compressed-state light field and entangled-state light field
Zheng Yaohui,Long Tian,Shaoping Shi,Wang Yajun +3 more
- 31 Jul 2020
TL;DR: In this paper, a dual-wavelength laser, an optical parameter cavity, optical filtering cavity, a high-frequency photoelectric modulation system and a balance zero-beat detection system are used for simultaneously generating a compressed-state light field and an entangled-state Light Field.
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Abstract: The invention discloses a device for simultaneously generating a compressed-state light field and an entangled-state light field. The device comprises a dual-wavelength laser, an optical parameter cavity, an optical filtering cavity, a high-frequency photoelectric modulation system and a balance zero-beat detection system. The compressed-state light field and the entangled-state light field can begenerated simultaneously based on one optical parametric cavity, related quantum optical experiment verification is carried out respectively, multiple functions of the quantum light source are realized, quantum resources are saved to the greatest extent, and technical support and scheme are provided for further practicability of the quantum light source.
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TL;DR: In this article, the authors discuss various methods to create macroscopic (bright) entangled light beams, including bright squeezed vacuum, obtained via high-gain parametric down-conversion, which manifests entanglement in both photon numbers and polarization.
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TL;DR: In this article, a stable continuous variable quantum entanglement source generating device consisting of a single-frequency laser, an electro-optical phase modulator, a first degenerate optical parametric amplifier, a second degenerate OPA, and a firstcavity length and phase locking system was proposed.
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Yan Zhihui,Jia Xiaojun,Kunchi Peng +2 more
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TL;DR: In this paper, the authors proposed a generation device of quantum entanglement among three atomic ensembles, which mainly aims to solve the existing technical problem of probability preparation existed by quantum entenglement among a plurality of atomic Ensembles.
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Patent
Generating set of continuous-variable multi-component polarized entangled optical field
Yan Zhihui,Jia Xiaojun,Kunchi Peng +2 more
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TL;DR: In this paper, a generating set of a continuous-variable multi-component polarized entangled optical field is presented for generating spatially separated multi-beam continuous variable entangled optical fields having the wavelength corresponding to an atomic absorption line at normal temperature.
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Patent
Quasi-continuous quantum compression vacuum state optical field generating device
Long Tian,Zheng Yaohui,Yuhang Tian,Wang Yajun +3 more
- 16 Aug 2019
TL;DR: In this article, a quasi-continuous quantum compression vacuum state optical field generating device with a laser, an optical parametric amplifier, a detection module and a scanning locking module is presented.
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