Quantum Money that Uses The Mathematics of Knots could be unforgeable

Physicist Stephen Wiesner first proposed the idea of quantum money in 1969 but there were details still to be worked out. One of them was a system by which people could check that quantum money stored on a quantum computer was actually created by the official authorities. Mark Zhandry at NTT Research, a computing and cryptography start-up in California, and his colleagues have now worked out how using a branch of mathematics called knot theory can help. One thing mathematicians look at in knot theory is if one knot can be rearranged to match another – a surprisingly difficult problem, even for quantum computers. Once two knots are found to be equivalent, mathematicians assign them the same value called an invariant. Zhandry and his colleagues examined a quantum monetary system where calculating these invariants, for knots and similar classification problems, is the basis for checking the money is genuine. Quantum money that uses the mathematics of knots could be unforgeable | New Scientist

My 13 Favorite AI Stories of 2022 | The AI Beat

As I rev up for all things AI in 2023, I wanted to take a quick look back at my favorite stories, large and small, that I covered in 2022 — starting with my first few weeks at VentureBeat back in April. In August, I enjoyed getting a look at a possible AI hardware future. That’s what Logan Wright and Tatsuhiro Onodera, research scientists at NTT Research and Cornell University, envision: a future where machine learning (ML) will be performed with novel physical hardware, perhaps based on photonics or nanomechanics. These unconventional devices, they say, could be applied in both edge and server settings. My 13 favorite AI stories of 2022 | The AI Beat | VentureBeat

NTT is Developing the ‘World’s Fastest Wireless Communication Technology’

Tokyo-based telecommunications giant NTT Corporation announced today it’s developing a technology to power the world’s fastest radio wave propagation—to provide devices with lightning-fast wireless communication. NTT’s innovation—done in collaboration with Tokyo Denki University—is spurred in part by the increasing demands for high-speed, low-latency network connections between communication endpoints, as well as the continued rise in data usage and information flow. NTT developing ‘world’s fastest wireless communication technology’ (

NTT Research and Harvard Collaborate on Cardiovascular Bio Digital Twin

NTT Research, Inc., a division of NTT announced that its Medical & Health Informatics (MEI) Lab has entered a three-year joint research agreement with the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS). NTT Research scientists will work with the Disease Biophysics Group (DBG) at SEAS to engineer a model of the human heart, elucidate fundamental laws of muscular pumps, and apply lessons learned to a cardiovascular (CV) bio digital twin model. The agreement commenced on July 1, 2022. The principal investigator of the research project is Harvard Professor Kevin Kit Parker, who leads DBG, an interdisciplinary team with significant experience building micro-physiological systems to approximate the physiology and pathophysiology of the human heart. NTT Research and Harvard Collaborate on Cardiovascular Bio Digital Twin (

NTT Research, Harvard partner on digital cardiovascular research

NTT Research, a global technology startup, has entered into a three-year research partnership with the Cambridge, Mass.-based Harvard John A. Paulson School of Engineering and Applied Sciences to engineer a digital model of the human heart. The research agreement began July 1, and the researchers aim for the partnership to help them understand cardiovascular structure-function relationships, according to a Nov. 16 NTT news release. Kevin Kit Parker, PhD, will lead Harvard’s research and will work with NTT researcher Joe Alexander, MD, PhD, on the project.  NTT Research, Harvard partner on digital cardiovascular research (

Researchers Build Disposable Sensors With Organic Circuitry

Researchers at NTT Corp. and the University of Tokyo have developed the first combined battery-and-sensor circuitry from environmentally friendly materials that can transmit a communications signal. The proof-of-concept device is composed of carbon electrodes and wiring and other benign materials, including magnesium and cellulose, in place of metals such as lithium, copper, cobalt, and nickel that are potentially hazardous when carelessly discarded. Kazuhiro Gomi, CEO of NTT Research in Sunnyvale, Calif., notes that the device is still in an early stage of development and there is much work to be done. “But now we have all the elements in place for an environmentally friendly battery and sensor, and we’ve proved the concept works.” Researchers Build Disposable Sensors With Organic Circuitry – IEEE Spectrum

NTT Scientists Demonstrate New Way to Verify Quantum Advantage

NTT Research, Inc., a division of NTT, announced that a scientist from its Cryptography and Information Security (CIS) Lab and a colleague from the NTT Social Informatics Laboratories (SIL) have written a pathbreaking paper on quantum advantage. The paper was selected to be presented at the annual IEEE Symposium on Foundations of Computer Science (FOCS), which is taking place Oct. 31–Nov. 3 in Denver. The co-authors of the paper, titled “Verifiable Quantum Advantage without Structure,” are Dr. Takashi Yamakawa, distinguished researcher at NTT SIL and Dr. Mark Zhandry, senior scientist in the NTT Research CIS Lab. The work was done in part at Princeton University, where Dr. Yamakawa was a visiting research scholar and Dr. Zhandry also serves as an assistant professor of computer science. NTT Scientists Demonstrate New Way to Verify Quantum Advantage (

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