The researchers designed the Pyramid - shaped quantum dot LED, or will promote the development of quantum computing

Quantum computing is widely regarded as an innovative technology for the next generation of global computing. The giant companies such as Google, Intel and IBM are now investing millions in the field, which will promote faster and more efficient processing to cater for future computing, high-speed networks, data encryption and other applications, such as defense, security, sensing and so on.

Recently, researchers at the Tyndall National Institute of Ireland (Tyndall National Institute) have designed a quantum dot light emitting diode (LED) based on an extensible and compatible plant - based micro - technology, which is expected to produce entangled photons associated with the state of the quantum operation.

The project leader, Dr. Emanuele Pelucchi, said the study would be likely to be used in the future of quantum computing in order to speed up the application of quantum technology.

The Tindall Institute used nanotechnology to power a Pyramid - like quantum dot array to produce entangled photons. Using the nanostructures inherent in the conical structure, especially for the designed, self assembled vertical quantum wires, the quantum dots can be selectively injected into the quantum dots. The result of this article is an important step in the design of quantum photonic integrated circuits, which lays the foundation for the quantum information processing task of thousands or even more synchronous operation.

The researchers have returned to the top of the Pyramid structure by returning to the original base, thereby increasing several orders of magnitude more than the built-in components of the interior. Then the top and bottom contacts are designed to selectively inject current in a single QD in the center of the Pyramid structure. The key is to make use of the self calibration technique to make the component easy to make large scale manufacturing.

Through contact with all the LED, the researchers have to think about 1300 mu LED for a large amount of analysis, but also plan to control the micron LED for better performance selectivity and the inhomogeneity of the compensation process.

Ideally, for quantum information processing, researchers want to use LED as a completely non - distinguishable source of entangled photons. The efficiency of photon extraction is also very low, about 1%, so researchers expect to improve by using different techniques, such as the stress and electric field of the built materials.

Tindall's researchers have developed a scheme to produce quantum dot light-emitting diodes (QDs) that can produce entangled photons, which can theoretically be used for information coding in quantum computing. Pelucchi explains that this is not the only way LED produces entangled photons, but as described in the natural photonics article, the method and materials have an important impact on the future of quantum technology.

Traditional digital computing relies on binary switches, and quantum computing makes use of the quantum states of events, such as entanglement of photons or the multiple states of atoms, to encode information. In theory, this can promote faster and more powerful computer processing, but the current related technologies are difficult to support large-scale development.

The innovation lies in the design of a scalable electric quantum dot array, which uses easy to obtain materials and traditional semiconductor manufacturing technology. This method can achieve the direct acquisition of the position of the entangled photon source. The key technology of this method is the position control of quantum dots and the technology of large scale manufacturing. Their development will promote the wider use of the supporting quantum computing technology.

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