World News

Neuromorphic semiconductor device achieves world's highest handwriting pattern recognition rate

Tech Xplore - Scientific News Websites

A research team led by Dr. Yong-hun Kim and Dr. Jeong-Dae Kwon has successfully developed the world's first neuromorphic semiconductor device with high-density and high-reliability by developing a thin film of lithium-ion battery materials. T...

Feb 20, 2023

Engineering Silicon Nanowires to Convert Sunlight into Electricity

AZoNano - Nanotechnology Websites

Researchers from the Department of Chemistry at the University of North Carolina at Chapel Hill have developed silicon nanowires that can convert sunlight into electricity by splitting water into...

Feb 20, 2023

Magnetite Nanoclusters Covered in Carbon Could Boost Cancer Therapy

AZoNano - Nanotechnology Websites

A near-infrared (NIR)-II-responsive carbon-coated iron oxide nanocluster has been the focus of new research by Professor Hui Wang, Professor Wenchu Lin and Associate Professor Junchao Qian from...

Feb 20, 2023

Securing supply chains with quantum computing

Technology Org - Scientific News Websites

The Russo-Ukrainian conflict and the COVID-19 pandemic have shown how vulnerable global supply chains can be. International events

Feb 20, 2023

Scalable Large-Size Quantum State Generation Heralds Practical Quantum Optics

Photonics Media - Scientific News Websites

Among all quantum systems, photons are known for their weak interaction, which allows long coherence time to be achieved even at room temperature, making them suitable for transmitting qubits between distant locations. However, the weak interactio...

Feb 20, 2023

SMART Researchers Develop First Nanotube Sensors Capable of Detecting and Distinguishing Gibberellin Plant Hormones

AZoNano - Nanotechnology Websites

Researchers from the Disruptive & Sustainable Technologies for Agricultural Precision (DiSTAP) Interdisciplinary Research Group (IRG) of Singapore-MIT Alliance for Research and Technology (SMART),...

Feb 20, 2023

Researchers develop first nanotube sensors capable of detecting and distinguishing gibberellin plant hormones

Nanowerk - Nanotechnology Websites

This is the first time that nanosensors capable of detecting and distinguishing gibberellins (GAs), a type of plant hormone that regulates plant growth, have been developed and validated in living plants.

Feb 20, 2023

Industrial production of graphene commences in Kerala

Graphene Info - Scientific and Educational Websites

It was reported that industrial production of graphene recently commenced in Kerala, India, with the manufacturing beginning at Carborundum Universal Limited under the Murugappa Group. Carborundum Universal has designed a special project, Graph...

Feb 20, 2023

Global Graphene Group's Honeycomb Battery merges with a SPAC company in a deal worth over $900 million

Graphene Info - Scientific and Educational Websites

Global Graphene Group (G3) announced that its subsidiary Honeycomb Battery is set to merge with a SPAC company (Nubia Brand International Corp.) in a deal worth $925 million. Nubia's current valuation is $700 million, and following the merge...

Feb 19, 2023

Quantum Physicists Make Nanoscopic Breakthrough of Colossal Significance ",plain_text=" Illustration of two a chip comprising two entangled quantum light sources. Credit: Peter LodahlIn a new breakthrough, researchers at the University of Copenhagen, in collaboration with Ruhr University Bochum, have solved a problem that has caused quantum researchers headaches for years. The researchers can now control two quantum light sources rather than one. Trivial as it may seem to those uninitiated in quantum, this colossal breakthrough allows researchers to create a phenomenon known as quantum mechanical entanglement. This, in turn, opens new doors for companies and others to exploit the technology commercially.Going from one to two is a minor feat in most contexts. But in the world of quantum physics, doing so is crucial. For years, researchers around the world have strived to develop stable quantum light sources and achieve the phenomenon known as quantum mechanical entanglement – a phenomenon, with nearly sci-fi-like properties, where two light sources can affect each other instantly and potentially across large geographic distances. Entanglement is the very basis of quantum networks and central to the development of an efficient quantum computer.Researchers from the Niels Bohr Institute published a new result in the highly esteemed journal Science, in which they succeeded in doing just that. According to Professor Peter Lodahl, one of the researchers behind the result, it is a crucial step in the effort to take the development of quantum technology to the next level and to “quantize” society’s computers, encryption, and the internet.Part of the team behind the invention. From left:: Peter Lodahl, Anders Sørensen, Vasiliki Angelopoulou, Ying Wang, Alexey Tiranov, Cornelis van Diepen. Credit: Ola J. Joensen, NBI“We can now control two quantum light sources and connect them to each other. It might not sound like much, but it’s a major advancement and builds upon the past 20 years of work. By doing so, we’ve revealed the key to scaling up the technology, which is crucial for the most ground-breaking of quantum hardware applications,” says Professor Peter Lodahl, who has conducted research the area since 2001.The magic all happens in a so-called nanochip – which is not much larger than the diameter of a human hair – that the researchers also developed in recent years.Quantum sources overtake the world’s most powerful computerPeter Lodahl’s group is working with a type of quantum technology that uses light particles, called photons, as micro transporters to move quantum information about.While Lodahl’s group is a leader in this discipline of quantum physics, they have only been able to control one light source at a time until now. This is because light sources are extraordinarily sensitive to outside “noise,” making them very difficult to copy. In their new result, the research group succeeded in creating two identical quantum light sources rather than just one.“Entanglement means that by controlling one light source, you immediately affect the other. This makes it possible to create a whole network of entangled quantum light sources, all of which interact with one another, and which you can get to perform quantum bit operations in the same way as bits in a regular computer, only much more powerfully,” explains postdoc Alexey Tiranov, the article’s lead author.This is because a quantum bit can be both a 1 and 0 at the same time, which results in processing power that is unattainable using today’s computer technology. According to Professor Lodahl, just 100 photons emitted from a single quantum light source will contain more information than the world’s largest supercomputer can process.By using 20-30 entangled quantum light sources, there is the potential to build a universal error-corrected quantum computer – the ultimate “holy grail” for quantum technology, that large IT companies are now pumping many billions into.Other actors will build upon the researchAccording to Lodahl, the biggest challenge has been to go from controlling one to two quantum light sources. Among other things, this has made it necessary for researchers to develop extremely quiet nanochips and have precise control over each light source.With the new research breakthrough, the fundamental quantum physics research is now in place. Now it is time for other actors to take the researchers’ work and use it in their quests to deploy quantum physics in a range of technologies including computers, the internet, and encryption.“It is too expensive for a university to build a setup where we control 15-20 quantum light sources. So, now that we have contributed to understanding the fundamental quantum physics and taken the first step along the way, scaling up further is very much a technological task,” says Professor Lodahl.Reference: “Collective super- and subradiant dynamics between distant optical quantum emitters” by Alexey Tiranov, Vasiliki Angelopoulou, Cornelis Jacobus van Diepen, Björn Schrinski, Oliver August Dall’Alba Sandberg, Ying Wang, Leonardo Midolo, Sven Scholz, Andreas Dirk Wieck, Arne Ludwig, Anders Søndberg Sørensen and Peter Lodahl, 26 January 2023, Science.DOI: 10.1126/science.ade9324The research was conducted at the Danish National Research Foundation’s “Center of Excellence for Hybrid Quantum Networks (Hy-Q)” and is a collaboration between Ruhr University Bochum in Germany and the University of Copenhagen’s Niels Bohr Institute.

SciTechDaily - Scientific News Websites

In a new breakthrough, researchers at the University of Copenhagen, in collaboration with Ruhr University Bochum, have solved a problem that has caused quantum researchers...

Feb 19, 2023