Cloud Hosting

Quantum entanglement that strange but potentially hugely useful quantum phenomenon where two particles are inextricably linked across space and time could play a major role in future radar technology.

In 2008, an engineer from MIT devised a way to use the features of entanglement to illuminate objects while using barely any photons. In certain scenarios, such technology promises to outperform conventional radar, according to its makers, particularly in noisy thermal environments.

Now, researchers have taken the idea much further, demonstrating its potential with a working prototype.

The technology might eventually find a variety of applications in security and biomedical fields: building better MRI scanners, for example, or giving doctors an alternative way of looking for particular types of cancer.

"What we have demonstrated is a proof of concept for microwave quantum radar," says quantum physicist Shabir Barzanjeh, who conducted the work at the Institute of Science and Technology Austria.

"Using entanglement generated at a few thousandths of a degree above absolute zero, we have been able to detect low reflectivity objects at room temperature."

The device works along the same principles as a normal radar, except instead of sending out radio waves to scan an area, it uses pairs of entangled photons.

Entangled particles are distinguished by having properties that correlate with one another more than you'd expect by chance. In the case of the radar, one photon from each entangled pair, described as a signal photon, is sent towards an object. The remaining photon, described as an idler, is kept in isolation, waiting for a report back.

If the signal photon reflects from an object and is caught, it can be combined with the idler to create a signature pattern of interference, setting the signal apart from other random noise.

As the signal photons reflect from an object, this actually breaks the quantum entanglement in the truest sense. This latest research verifies that even when entanglement is broken, enough information can survive to identify it as a reflected signal.

It doesn't use much power, and the radar itself is difficult to detect, which has benefits for security applications. The biggest advantage this has over conventional radar, however, is that it's less troubled by background radiation noise, which affects the sensitivity and the accuracy of standard radar hardware.

"The main message behind our research is that quantum radar or quantum microwave illumination is not only possible in theory but also in practice," says Barzanjeh.

"When benchmarked against classical low-power detectors in the same conditions we already see, at very low-signal photon numbers, that quantum-enhanced detection can be superior."

There's plenty of exciting potential here, though we shouldn't get ahead of ourselves just yet. Quantum entanglement remains an incredibly delicate process to manage, and entangling the photons initially requires a very precise and ultra-cold environment.

Barzanjeh and his colleagues are continuing their development of the quantum radar idea, yet another sign of how quantum physics is likely to transform our technologies in the near future in everything from communications to supercomputing.

"Throughout history, proof of concepts such as the one we have demonstrated here have often served as prominent milestones towards future technological advancements," says Barzanjeh.

"It will be interesting to see the future implications of this research, particularly for short-range microwave sensors."

The research has been published in Science Advances.

Visit link:

Physicists Just Built The First Working Prototype Of A 'Quantum Radar' - ScienceAlert

Claude Greisler, co-founder and technical director of Armin Strom, talks resonance with watch collector Michael J. Biercuk, professor of quantum physics and technology at the University of Sydney and CEO and founder of Q-CTRL.

Quantum physics and technology laboratory at the University of Sydney

In this interesting discussion, which took place in Sydney, Greisler and Biercuk discuss what resonance is and what the advantages are. Biercuk also notes that resonance is not watchmaking specific and explains where its found in daily life as well as how its used in quantum physics.

The discussion is easy to understand and provides a light and entertaining look at Armin Stroms signature complicated element.

For more information, please visit http://www.arminstrom.com.

Armin Strom Gravity Equal Force: Invention Is No Accident, Or How To Start Fresh

Armin Strom Minute Repeater Resonance: Synchronized Oscillations Driving Sonorous Vibrations (Plus Video It Sounds Fantastic!)

Armin Strom Masterpiece 1 Dual Time Resonance: Simplifying With Complexity

Understanding Resonance, Featuring The F.P. Journe Chronomtre Rsonance, Armin Strom Mirrored Force Resonance, And Haldimann H2 Flying Resonance

A Watchmakers Technical Look At The Mirrored Force Resonance Fire By Armin Strom: A Dual-Balance Watch With A Difference

See the article here:

Armin Strom Discusses Resonance With PhD Of Quantum Physics And Watch Collector In An Easy-To-Understand Way (Video) - Quill & Pad

Artistic illustration of a carbon nanotube COVID-19 detector. Credit: Zettl Research Group/Berkeley Lab

How an atomically thin device could become a biotech breakthrough.

A technology spun from carbon nanotube sensors discovered 20 years ago by Lawrence Berkeley National Laboratory (Berkeley Lab) scientists could one day help health care providers test patients for COVID-19, the disease caused by the coronavirus SARS-CoV-2.

When Alex Zettl, Marvin Cohen, and their research teams at Berkeley Lab first demonstrated ultrasensitive oxygen sensors devised from carbon nanotubes hollow carbon wires with walls no thicker than an atom they envisioned a broad spectrum of applications, such as gas-leak detectors or air- and water-pollution detectors.

Subsequent studies out of Zettls lab revealed that carbon nanotubes or CNTs could also be used to detect proteins or carbohydrates at the level of single cells for biological and medical applications. CNTs exquisite chemical sensitivity had dramatic life-science implications that could benefit society, Zettl said.

But since Zettl normally investigates atomically thin materials known as nanomaterials for the Department of Energys Novel sp2-Bonded Materials and Related Nanostructures program, his lab is set up for launching exciting new experiments in quantum physics, not new applications for entrepreneurial startups.

So in 2000, Zettl and Cohen, who are both senior faculty scientists in Berkeley Labs Materials Sciences Division and physics professors at UC Berkeley, branched out into the world of commercial spinoffs by co-founding the Emeryville-based biotech company Nanomix Inc. They currently sit on the companys board of directors Zettl participates as an adviser, and Cohen as a member.

Today, the company is one of many U.S. companies vying for FDA Emergency Use Authorization (EUA) to deploy new diagnostic tests for COVID-19.

Last month, the company was awarded approximately $570,000 in funding from the Department of Health and Human Services Biomedical Advanced Research and Development Authority (BARDA) to develop disposable cartridges that test for protein traces of the coronavirus known as antigens in nasal swab samples, and for antibodies to the coronavirus in blood samples.

Patient samples loaded onto the cartridges are analyzed by the Nanomix eLab, a handheld testing device the company first developed more than five years ago in response to the Ebola virus epidemic.

The cartridges rely on tiny carbon biosensors modeled after the Zettl and Cohen labs groundbreaking carbon nanotube technology to detect coronavirus antigens during the early stages of a current infection. In addition, the cartridges can test for antibodies the immune system builds up as part of our bodys natural defense mechanism against a previous SARS-CoV-2 infection. The company says the eLab system can produce test results in about 15 minutes.

If granted FDA Emergency Use Authorization, the company hopes to have COVID-19-ready eLab products available for health care providers in June, and to scale up its supply and production capacity to provide hundreds of thousands of test kits, said Nanomix President and CEO David Ludvigson.

The fact that my research could help so many people is very rewarding. Im happy that I was able to contribute in that way, Zettl said.

The rest is here:

Company Hopes to Have Carbon Nanotube COVID-19 Detector Available in June - SciTechDaily