New breakthrough of "quantum entanglement" by scientists: photon instantaneous transmission distance up to 100 kilometers
Quantum transmission is a new communication method. It is no longer the classical information but the quantum information carried in the quantum state. It is the core element of the future quantum communication network. Use quantum entanglement technology. According to foreign media reports, quantum stealth transmission experiments have achieved some breakthroughs. Scientists in the United States have achieved photon instantaneous passive transmission experiments on optical fibers up to 102 kilometers (63 miles) away. This study may open the era of quantum networks. .
The researchers emphasized that this experiment is fundamentally different from the transport device in Star Trek. This instantaneous transport device transforms matter into signals for transmission, and then restores the signals to the physical form at other locations. One of the project's researchers from the National Institute of Standards and Technology (NIST), Marty Stevens, said, "Although only 1% of photons reach a distance of 100 kilometers through quantum stealth transmission," However, the results of the study are still very encouraging. It is the first time that such a long-distance quantum hidden state transmission can be achieved, and it has reached 4 times the previous record.
The device used for the test is shown in the figure below: (a, principle model, b, experimental setup)
Experiments show that the statistics of the reduction degree of different input quantum states in the 100km photon transmission test are as follows:
Hastelloy is the prefix name of a family of alloys. Nickel is typically the base alloy, and other ingredients (such as molybdenum, chromium, cobalt, iron, titanium, aluminum and tungsten) are added to the base in varying percentages.
Hastelloy is corrosion resistant and used in high-temperature, high stress environments, such as the aerospace, chemical processing and power generation industries. It has outstanding stress corrosion cracking resistance and resistance to non-oxidizing acids (such as hydrochloric and sulfuric acid).
Hastelloy Heat Exchanger Tube,Heat Exchanger Seamless Hastelloy Steel Tube,Alloy Hastelloy Heat Exchanger Tube,Hastelloy Seamless Coiled Tube
Zhejiang Max Stainless Steel Co.,Ltd , https://www.cnstainlesstube.com