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The Chinese Have Allegedly Developed A Quantum Radar That Can Detect American Stealth Planes


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Beijing has issued a statement claiming that the Chinese defence contractor has managed to develop the first quantum radar system of the world. The newly developed radar system has the capability to detect an object 62 miles away.

If true, it would be a huge blow to the American ‘stealth’ aircraft like F-22 Raptor fighter and B-22. However, the claim is quite bold, to say the least!



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The basic idea of the quantum radar comes from the quantum theory of entanglement. The theory suggests that two distinct particles are interrelated with each other such that study of one particle can reveal the properties of the other, even if the other particle is miles away. The two particles, or objects, are then said to be ‘entangled’ with each other!



Image Source: extremtech


Theoretically, the quantum radars employ the concept of parametric down-conversion to split a photon into two entangled photons, using a crystal.



Image Source: Tech First


Thus, multiple photons are split by the radar to generate entangled pairs, say pair A and pair B. One-half of the paired entangled particles, say the As, are transmitted into the air using a microwave beam. The other set of the pair-halves, the Bs in this case, are retained at the base.



Image Source: Daily Mirror


Changes in the photons left behind on the radar base are then studied to determine the fate of the ones transmitted into the air. The quantum entanglement theory enables the radar operator to determine if the transmitted photons interacted with any object. They can also determine the size, speed, direction, and shape of the object encountered by the photons broadcast outwards.



Image Source: Tech First


Quantum radars can detect the stealth jets as they use sub-atomic particles instead of the radio waves. The radar would also successfully overcome the standard radio wave radar jammers.



Image Source: AP


The radar was developed last month by the 14th Institute of China Electronics Technology Group Corporation (CETC). CETC employs 9000 people in its sprawling 2000-acres research complex and is ‘the birthplace of Radar industry in China.’

Research on the development of the quantum radar is being pursued all over the world. In 2008, Lockheed Martin secured a patent on the general design of a quantum radar. The plan was quite ambitious featuring:

“the ability to visualise useful target details through background and/or camouflaging clutter, through plasma shrouds around hypersonic air vehicles, through the layers of concealment hiding underground facilities, IEDs, mines, and other threats.”



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Since then, the firm has been silent about the project. It is entirely possible, given the highly critical nature of the project, that the plans were declared classified.

So, is it possible that the Chinese have realised a quantum radar to ground all the US stealth jets? A sceptical physicist at the Nanjing University in China said:

“Serious technical challenges had long confined quantum radar technology to the laboratory.”




Others are suspicious merely because the story appeared in the Chinese paper Global Times, an alleged government-run media organisation.

What do you think of the quantum radar? Do you think it is possible that the Chinese have built one already? Let us know in comments!


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2 Comments to The Chinese Have Allegedly Developed A Quantum Radar That Can Detect American Stealth Planes

  1. Dmitry Zot'ev

    It’s simply a China’s bluff. Quantum entanglement of mutually remote particles, in fact, is a broadly popularized myth that arose from the superficial knowledge of quantum mechanics as well as the passionate desire to trust in wonders. But for this hypothetical radar there is a simple counter argument. Be this is possible, the signal from the target would get to the radar faster than light (instantly, according to the paradigm of quantum entanglement). I think that usual radiolocation took place in such experiments.

  2. Dmitry Zot'ev

    It’s simply a China’s bluff. Quantum entanglement of mutually remote particles, in fact, is a broadly popularized myth that arose from superficial knowledge of quantum mechanics. Usual radiolocation takes place in such experiments.

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