Sign In

Communications of the ACM

ACM TechNews

New Research Signals Big Future For Quantum Radar

View as: Print Mobile App Share: Send by email Share on reddit Share on StumbleUpon Share on Hacker News Share on Tweeter Share on Facebook
At top, a schematic of the electro-opto-mechanical converter in which driven microwave and optical cavities are coupled by a mechanical resonator. At bottom, microwave-optical quantum illumination using EOM converters.

An international research team has developed a prototype quantum radar.

Credit: Shabir Barzanjeh et al./Physical Review Letters

An international research team led by University of York scientist Stefano Pirandola has developed a prototype quantum radar that could be used to detect objects that are invisible to conventional systems.

The hybrid system uses quantum correlation between microwave and optical beams to detect objects of low reflectivity, such as cancer cells or aircraft with stealth capability.

The key to the system is a type of converter, a double-cavity device that couples the microwave beam to an optical beam using a nano-mechanical oscillator. The device can either generate microwave-optical entanglement during the signal emission or convert a microwave into an optical beam during the collection of the reflection beams from the object.

Quantum radars operate more effectively than conventional radars and exploit quantum entanglement to enhance their sensitivity to detect small signal reflections from very noisy regions. Although they are not yet ready for mainstream use, quantum radars would offer superior performance, especially at the low-photon level, Pirandola says. He believes they could have a range of applications in biomedicine, including non-invasive nuclear magnetic resonance scans.

From University of York
View Full Article


Abstracts Copyright © 2015 Information Inc., Bethesda, Maryland, USA


No entries found