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Optical Josephson junction structure based on photon BEC

An optical and photon technology, applied in the field of quantum information, can solve the problems of interaction and coupling without given decoherence time extension, and achieve the effect of decoherence time increase

Pending Publication Date: 2021-11-26
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the physical realization of quantum information technology, there is no technical solution based on photon condensation to prolong the decoherence time and enhance the interaction coupling with the outside world.

Method used

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  • Optical Josephson junction structure based on photon BEC
  • Optical Josephson junction structure based on photon BEC
  • Optical Josephson junction structure based on photon BEC

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Embodiment Construction

[0022] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0023] Such as figure 1 , figure 2 As shown, the present invention provides a photonic BEC-based optical Josephson junction structure, including a compound resonant cavity and a single Λ-type atom a. The composite resonant cavity is composed of a first resonant cavity 101 , a second resonant cavity 102 and a rectangular cut-off waveguide 103 .

[0024] The inner wall of the first resonance cavity 101 is a hexahedron. The hexahedron includes A surface 1, B surface 2, C surface 3, D surface 4, E surface 5 and F surface 6, wherein A surface 1 and B surface 2 are opposite and parallel to each other, C surface 3 and D surface 4 are opposite The E surface 5 and the F surface 6 are opposite surfaces. A-side 1 and B-side 2 are rectangular planes with the same size, wherein A-side 1 is used for signal coupling or output; B-side 2 is used to connec...

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Abstract

The invention belongs to the field of quantum information, and particularly relates to an optical Josephson junction structure based on a photon BEC. The optical Josephson junction structure comprises a composite resonant cavity, a single atom and an optical signal, wherein the composite resonant cavity is composed of a first resonant cavity, a second resonant cavity and a rectangular cut-off waveguide; the first resonant cavity and the second resonant cavity are of the same structure, and the two resonant cavities are connected through the rectangular cut-off waveguide to form an optical double-potential-well structure; and the single atom is arranged at the central position of the rectangular cut-off waveguide. The adopted optical double-potential-well structure has good stability, the interval between two lowest energy levels of the coded quantum bit and other photon energy levels is large, the coupling degree between photons and atoms is high, the quantum bit can be coded through an atom system and a photon system in a cavity, transmission with larger capacity and higher speed is achieved, and a new solution is provided for the realization of the quantum information technology.

Description

technical field [0001] The invention relates to the field of quantum information, in particular to an optical Josephson junction structure based on photonic BEC. Background technique [0002] Quantum information technology is a new subject that intersects quantum physics and information science, and its physical basis is quantum mechanics. Based on quantum characteristics, quantum information technology can break through the physical limit of existing information technology, and will play a great role in information processing speed, information security, information capacity, information detection accuracy, etc. It has become the current world scientific and technological research. A big hit. [0003] In the study of quantum information, the thermalization energy process can realize the conservation of the number of photons through dyed photon trap experiments, that is to say, the cavity trap can provide the necessary conditions for the experimental photon gas BEC (Einstei...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L39/22H01L39/02H10N60/80
CPCH10N60/805H10N60/12
Inventor 王智勇赖献莅刘禹墨王云祥
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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