Continuous variable entanglement generation device and method

A technology for generating devices and variables, which is applied in the field of entangled state generating devices, can solve problems such as failure to generate multi-component entangled states, and achieve the effects of easy manipulation, strong practicability, and simple devices
CN102707540BActive Publication Date: 2014-11-19SHANXI UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
SHANXI UNIV
Publication Date
2014-11-19

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Abstract

The invention provides a continuous variable entanglement generation device and method. The continuous variable entanglement generation device comprises a high-order transverse mode astigmatism compensation device. A plurality of pairs of continuous variable high-order transverse mode entanglement states are simultaneously generated in a single OPO (Optical Parametric Oscillator) through compensating the astigmatism effect of a high-order transverse mode to achieve continuous variable multi-cluster entanglement, and the entanglement state is also a hyper-entanglement state with both track angular momentum and spin angular momentum entanglements. The continuous variable entanglement generation device has a simple structure, is easy to control, has strong practicability and can be used in space measurement, image processing and quantum communication.
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Description

technical field

[0001] The invention relates to an entanglement state generation device in the field of quantum information, in particular to a continuous variable entanglement generation device, more specifically a device for generating multiple pairs of continuous variable high-order transverse mode entanglement states. Background technique

[0002] As an important resource in quantum information science, entangled states are widely used in the fields of quantum state transfer, quantum computing, and quantum key distribution. It ensures that the communication and processing of quantum information is more effective and secure.

[0003] Related research work before this includes:

[0004] 1. In 2005, Su Xiaolong and others published an article entitled "Experimental Generation of Continuous Variable Four-Component Cluster and GHZ Entangled States" on Phys.Rev.Lett. The linear coupling on the beamer produces a 4-component entangled state. `

[0005] 2. Matthew Pysher et al...

Claims

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