China is covering some ground in the emerging fields of quantum technology and nuclear fusion recently – Announcing that they have reached temperatures hot enough to sustain nuclear fusion, while revealing their quantum radar prototype within a few weeks of each other. The country claims their new radar can detect up to 60 miles out.
On Tuesday, a research team from China’s Hefei Institutes of Physical Science announced that their Experimental Advanced Superconducting Tokamak (EAST) has reached a temperature 6 times greater the sun, at 180 million degrees fahrenheit – the minimum temperature required for nuclear fusion to take place.
China has finally revealed a prototype of their “quantum radar” announced a few months back. According to them it can resist common forms of radar jamming – a unique quality that arises from the entanglement of each photon. After entangling two photons and firing one of them out in to the atmosphere the other one remains sheltered. Some of the outbound photons reflect off their environment and make it back to the device allowing scientists to decipher the particles history.
Entanglement decays with distance and friction creating a slight differential in spin between the two photons that can be read like a map, enabling identification of stealth objects. Since quantum radar relies on this self-referential subatomic ruleset flooding a target with false signals to jam their radar simply does not work anymore.
The project was funded by the state-owned China Electronics Technology Group Corporation (CETC) and revealed at the biennial Zhuhai Airshow on Nov. 6, 2018
“is expected to solve the traditional bottleneck [of] detection of low observable target detection, survival under electronic warfare conditions, platform load limitations, etc.,” according to a CETC brochure, which a reporter for Aviation Week obtained at Zhuhai
Quantum radars should be able to see all traditional stealth aircraft that would otherwise avoid detection due to conventional radar reflective coating. Since quantum radar works within the whole light spectrum it circumvents traditional stealth entirely, revealing any objects that are cloaked only to the infrared spectrum.
The problem is that quantum entanglement decays proportionately with increased distance. That means it requires a lot of maintenance – they need to pump out a lot of entangled photons to keep up with the amount of airspace, which isn’t easy. Scientists have proposed that we convert one stream of photons to a microwave frequency in order to prevent decoherence.