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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

Researchers achieve nanometer resolution measurement of the flow of electrons in graphene

Graphene Info - Scientific and Educational Websites

Scientists at the University of Wisconsin-Madison and Japan's National Institute for Materials Science have directly measured, for the first time at nanometer resolution, the fluid-like flow of electrons in graphene. The results could have a...

Feb 19, 2023

Making nanoparticle building blocks for new materials

Nanowerk - Nanotechnology Websites

Scientists are uncovering design principles that allow researchers to fine-tune materials at many size scales.

Feb 18, 2023

Using carbon-coated magnetite nanoclusters for synergistic cancer therapy

Nanowerk - Nanotechnology Websites

Researchers report a near infrared-II responsive carbon-coated iron oxide nanocluster, which was guided by magnetic resonance image and capable of combined photothermal and chemodynamic therapy, for synergistic cancer therapy.

Feb 18, 2023

Former Berkeley Dean of Engineering David A. Hodges Dies at 85 ",plain_text=" David A. HodgesFormer dean of engineering Life Fellow, 85; died 13 November Hodges, who was dean of engineering at the University of California, Berkeley, conducted pioneering research in IC design and semiconductor manufacturing. He coauthored the Analysis and Design of Digital Integrated Circuits textbook, which was used by universities around the world.An active IEEE volunteer, Hodges served in several leadership roles including 2007 vice chair of the IEEE Awards Board and 2011–2012 vice president of the IEEE Publication Services and Products Board. Under his leadership, the latter board celebrated milestones including the launch of IEEE’s first multidisciplinary open-access publication, IEEE Access; the creation of a Chinese-language edition of IEEE Spectrum; and the 100th anniversary of Proceedings of the IEEE. Hodges was the founding editor of IEEE Transactions on Semiconductor Manufacturing, and he served as editor of the IEEE Journal of Solid-State Circuits.He was largely responsible for moving the International Solid-State Circuits Conference in 1978 from Philadelphia to San Francisco. After earning his bachelor’s degree in electrical engineering in 1960 from Cornell, Hodges joined Bell Labs in Holmdel, N.J. There he conducted research on ICs for communications and saw the potential of metal-oxide semiconductors. He predicted that the technology would ensure the continuation of Moore’s Law. Compared with bipolar junction transistors, which were predominant in ICs then, MOS transistors are easier to scale and consume less power. Hodges and his colleagues pioneered the use of MOS technology in ICs.Hodges continued that line of research at UC Berkeley, which he joined in 1970 as a professor of engineering. He helped develop MOS analog-to-digital converters, expanding the use of the technology to industries including communications, signal processing, environmental sensing, and semiconductors.In 1983 he helped found the university’s Microfabrication Research Facility, known as Microfab. The facility was renamed the Marvell Nanofabrication Laboratory in 2010.Hodges became dean of UC Berkeley’s engineering college in 1990. In the six years he worked in the position, he established a team to better manage external relations and completed fundraising for the engineering department’s Soda Hall, a classroom building. He also laid the groundwork for the university’s bioengineering department. He retired as professor emeritus in 1998.Known as a committed educator, Hodges supervised 27 doctoral students during his time at Berkeley.In 1988 he helped write Analysis and Design of Digital Integrated Circuits.He was inducted into the Silicon Valley Hall of Fame in 2013. He received several IEEE awards including the IEEE Education Society’s 1997 IEEE James H. Mulligan Jr. Education Medal and the 1983 IEEE Morris N. Liebmann Memorial Award for pioneering work on switched-capacitor circuits. Hodges, a member of the National Academy of Engineering, earned master’s and doctoral degrees in EE from Berkeley in 1961 and 1966, respectively. Peter Bao-Sen LuhProfessor emeritus at the University of ConnecticutLife Fellow, 71; died 28 NovemberLuh was a professor of electrical and systems engineering at the University of Connecticut in Storrs from 1980 to 2020.He was an active IEEE volunteer and served as editor-in-chief of IEEE Transactions on Robotics and Automation from 1999 to 2003 and of IEEE Transactions on Automation Science and Engineering from 2003 to 2007. He helped found the IEEE Conference on Automation Science and Engineering. He also served as the 2018–2019 chair of the IEEE Technical Activities Board periodicals committee. In addition, he served on The Institute’s Editorial Advisory Board. Luh was the head of UConn’s engineering department from 2006 to 2009. He also served as director of the university’s Booth Engineering Center for Advanced Technology, which assists faculty and students conducting interdisciplinary research.He retired in 2020 as professor emeritus. He received the IEEE Robotics and Automation Society’s 2013 Pioneer Award for “contributions to the development of near-optimal and efficient planning, scheduling, and coordination methodologies for manufacturing and power systems.” Luh enjoyed spending time with his family, traveling, and attending UConn Huskies basketball games. He was an active member of UConn’s Chinese bible study group for more than 40 years. He received a bachelor’s degree in electrical engineering in 1973 from National Taiwan University in New Taipei. He earned a master’s degree in aeronautics and astronautics in 1977 from MIT and a Ph.D. in applied mathematics in 1980 from Harvard.Raymond KowalchukElectrical engineerLife member, 87; died 8 NovemberKowalchuk was a senior staff consultant at AEL Industries (now part of BAE Systems), in Colmar, Pa., for 37 years. During his time at AEL, he helped develop biomedical electronics, cable TV systems, antimissile warning receivers, emergency beacons for NASA, and surveillance systems for U.S. intelligence agencies and law enforcement.Later in his career, he consulted for the General Instruments Consortium and Motorola in the development and testing of two-way cable equipment for pay-per-view and on-demand television. He supervised the installation of the equipment by more than 150 cable systems in the United States. In his free time, he was a musician and a tinkerer. He played the trumpet and the French horn, and he enjoyed repairing radios, televisions, and other electronics. He was a member of the IEEE Microwave Theory and Technology Society and the Audio Engineering Society.Donald Norton EwartPower systems engineerLife Fellow, 92; died 7 NovemberEwart was a registered professional engineer in New York and Massachusetts who specialized in interconnected power systems. He consulted on large-scale power generation and delivery, helping bring electricity to neighborhoods in more than 60 countries during his career. After serving as first lieutenant at Wright-Patterson Air Force Base, in Greene County, Ohio, in the 1950s, Ewart joined General Electric in Pittsfield, Mass., as an engineer. He transferred in 1960 to GE’s utility systems engineering department in Schenectady, N.Y. In 1969 he was promoted to manager of systems dynamics and control. Eight years later, he became manager of systems engineering.In that latter role, he made several contributions to the advancement of large interconnected power systems. Ewart left GE in 1980 and joined the Electric Power Research Institute’s High Voltage Transmission Research Center, in Lenox, Mass., as manager of transmission and distribution. In 1987 he left to become manager of consulting services at Power Technology Inc. (now part of Siemens), in Schenectady, where he spent the remainder of his career. He was a member of the IEEE Power & Energy Society.After receiving a bachelor’s degree in electrical engineering in 1954 from Cornell, he earned a master’s degree in electrical engineering from Union College, in Schenectady.Turgut MeydanMagnetics researcherMember, 65; died 22 AugustAt Cardiff University’s Wolfson Centre for Magnetics research group, in Wales, Meydan was a reader: a senior academic with a distinguished international reputation.He joined Cardiff in 1984 and spent his entire career there, researching, teaching, and advising graduate students. “Turgut was always keen to help others, especially his students when they were going through difficult times,” said Jianzhong Wu, head of Cardiff’s engineering school. “Over the past 10 years, he organized the magnetics group Christmas dinner, which helped strengthen social bonds between academic staff and students. He also built a strong relationship between the magnetics group at Cardiff and other such groups worldwide. He was an asset to the magnetics community and will be sorely missed.”Meydan served as chair of the 2003 Seminar on Sensors and Actuators, held by the IEEE United Kingdom and Ireland Section’s chapter of the IEEE Magnetics Society. The next year he chaired the 2004 European Magnetic Sensors and Actuators Conference.“Turgut loved his job as a researcher and teacher, and devoted his life to it,” said his wife, Gamze Meydan. “I hope he will be remembered fondly as a magnetics scientist, IEEE member, and a diligent academic.” Ian MacfarlaneLife senior member, 85; died 20 MayMacfarlane died unexpectedly in his sleep from cardiac arrest. He was interested in politics, conservation, animal welfare, new technologies, and music. He is greatly missed by his family and friends, said Jennifer Macfarlane, his daughter.

IEEE Spectrum - Scientific and Educational Websites

David A. HodgesFormer dean of engineering Life Fellow, 85; died 13 November Hodges, who was dean of engineering at the University of California, Berkeley, conducted pioneering research in IC design and semiconductor manufacturing. He coauthored t...

Feb 17, 2023

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