Quantum circuit of first current excitation source is the advent of science and technology — people-yuanmu

Quantum circuit of first current excitation source is the advent of science and technology — people.com.cn original title: quantum circuit of first current excitation source is the advent of quantum circuits using current excitation source of the latest development of the Karlsruhe Institute of Technology (KIT) official website announced on 27 May, an international team of scientists led the school and Poland Russian scientists, solve a major limitation photonic circuit used in optical quantum computer, the first successful a quantum optical structure integrated on a chip. Published in "nature? The latest achievements in photonics magazine will help" quantum computer early for data encryption, data calculation and highly complex system of ultrafast quantum simulation etc.. Because the diameter of carbon nanotubes to a hair thin, to become the best choice of quantum circuits of small light source, laser irradiation with carbon nanotubes, they will make a lot of single photon. But because the existing chip contains all electrical components, do not accept additional excitation laser system, the carbon nanotubes emit laser technology is difficult to integrate into the existing photonic chip, restricted conditions for the development of quantum computer. The new study uses carbon nanotubes to stimulate a single photon. The research team using carbon nanotubes as single photon sources and detectors as superconducting nanowires, carbon nanotubes and two detectors are connected with nano photonic waveguide, light structure made of liquid helium refrigeration, can emit a single photon counts. The device can be integrated into an existing chip. KIT nanotechnology expert Ralph crook? Said: "our circuit is a great progress in quantum computer field, now we can fully use the current stimulus nanotubes emit single photon, overcome the factors which hinder the use of quantum computer." (Nie Cuirong) ((Intern), commissioning editor: Yang Yang Xiong Xu)相关的主题文章: