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A Method of Controlling the Movement of Majorana Zero Energy Modes Using Electric Field

An electric field control and electric field technology, applied in the field of quantum computing, can solve problems such as slow speed and inability to directly control, and achieve the effect of fast speed, simple control, movement, and easy large-scale integration

Active Publication Date: 2020-09-01
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current experiment is trying to realize the weaving MZM operation. The common idea and method is to use a probe such as a scanning tunneling microscope (STM) tip, a magnetic force microscopy (MFM) tip, etc. to drag the MZM loaded on the topological superconductor. The magnetic flux vortex of the topological superconductor, but the probe dragging of this technology requires mechanical movement, the speed is slow, and the position of the magnetic flux vortex on the topological superconductor cannot be directly controlled. It can only be scanned in a large area to find a suitable magnetic flux vortex, and then weave operate

Method used

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  • A Method of Controlling the Movement of Majorana Zero Energy Modes Using Electric Field
  • A Method of Controlling the Movement of Majorana Zero Energy Modes Using Electric Field

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Embodiment Construction

[0015] Such as figure 1 As shown, it is the basic unit in the local magnetic field array involved in this embodiment, including: a topological superconductor 1 and a material layer 2 connected to it to form a heterojunction with magnetoelectric effect or equivalent magnetoelectric effect and arranged on the material Electrodes 3 on both sides of the layer.

[0016] The material layer 2 can be made of magnetoelectric effect materials, equivalent magnetoelectric effect materials such as a combination of PZM and PZE or a combination of FM and PZE.

[0017] The heterojunction is formed by evaporating by techniques such as molecular beam epitaxy (MBE) or magnetron sputtering, preferably: directly evaporating a magnetoelectric material layer, and then covering it with a topological superconductor layer; On materials with piezoelectric effect such as piezoelectric ceramics, by evaporating a piezoelectric material layer such as Mn 3 NNi on top of it, and then a topological supercond...

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Abstract

A method for controlling the movement of the Majorana zero-energy mode with an electric field, using a magnetoelectric layer to construct a local magnetic field array controlled by an electric field, and confining the local magnetic field array or directly generating MZM-loaded magnetic flux vortices on topological superconductors Spinning, and further realizing Majorana zero-energy mode movement and weaving operation by moving the magnetic field. Compared with the current method, it is fast, can easily control and move the Majorana zero-energy mode movement, and can be integrated on a large scale.

Description

technical field [0001] The invention relates to a technology in the field of quantum computing, in particular to a method for controlling the movement of the Majorana zero-energy mode with an electric field to complete topological quantum computing. Background technique [0002] Topological quantum computing uses particles with non-Abelian statistical properties, such as Majorana fermions or those with the same properties as Majorana fermions that appear in topological superconductors (TSCs). ) Majorana zero-energy mode (Majorana zeromode, MZM) at the center of the magnetic flux vortex. The current experiment is trying to realize the weaving MZM operation. The common idea and method is to use a probe such as a scanning tunneling microscope (STM) tip, a magnetic force microscopy (MFM) tip, etc. to drag the MZM loaded on the topological superconductor. The magnetic flux vortex of the topological superconductor, but the probe dragging of this technology requires mechanical mov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06N10/00
CPCG06N10/00
Inventor 马海洋贾金锋
Owner SHANGHAI JIAOTONG UNIV