Physics

News

JWST pinpoints the ‘invisible’ engine that powers the galaxies in the middle of a collision
03 Feb 2023
Researchers used the James Webb Space Telescope to identify the precise location of a powerful energy source hidden by cosmic dust in the luminous merging galaxy IIZw096.
03 Feb 2023
Traditional hydrogen peroxide production is energy and emission intensive, and so scientists have sought to synthesize it electrochemically. But tailoring the cobalt-nitrogen-carbon (Co-N-C) catalyst has been challenging. Using a theoretical prediction, which was then experimentally verified, an international research group has designed a Co-N-C catalyst that alleviates this problem.
01 Feb 2023
Osaka University researchers investigated the physics of laser-driven neutron sources, and found the relationship between the power and the neutrons generated. They were able to decrease the exposure time needed for neutron absorption experiments, which may be employed in biomedical research.
30 Jan 2023
Everyday electronics, such as our phones, employ surface acoustic wave devices for frequency filtering and sensing. But this consumes a lot of energy, serving as a drain on battery life. Now, a team of researchers has developed a new acoustic waveguide based on the mathematical concept of topology, which will help alleviate this problem.
24 Jan 2023
Researchers from Osaka University created a bound state of a proton and a K- meson known as Λ(1405), and measured its mass. The data implied that it consisted of five quarks. This work may help scientists develop a theory of exotic matter that existed in the early Universe or in neutron stars.
Schematic illustration of the spin transport demonstration of αNPD molecular thin film
24 Jan 2023
A research group, at the Osaka Metropolitan University Graduate School of Engineering, has succeeded in measuring spin transport in a thin film of αNPD molecules—a material well-known in organic light emitting diodes—at room temperature. They found that this thin molecular film has a spin diffusion length of approximately 62 nm, a length that could have practical applications in developing spintronics technology. In addition, while electricity has been used to control spin transport in the past, the thin molecular film used in this study is photoconductive, allowing spin transport control using visible light.
Asia Research News: Editor's choice
20 Jan 2023
Overeating mechanism: why "eating just one chip"🍟 is impossible, Measuring hidden energy of gamma-ray bursts, Marine species that can adapt to ocean acidification & A rough start can lead to a strong bond, Read all in our first Editor's Choice of 2023. Plus our interview on what dengue vaccine approval in EU💉means for global dengue protection.
19 Jan 2023
Controlling a material’s thermal conductivity can help insulate our homes, improve the performance of electronic devices, conserve power consumption in cars, and generate greater power efficiency. Now, a group of researchers has unveiled a novel mechanism that leads to further suppression of thermal conductivity in thermoelectric materials, something that will help develop new guidelines for producing high-performance thermoelectric materials.
X-ray fluorescence spectra analyzed using Bayesian estimation
06 Jan 2023
A research group at Osaka Metropolitan University has succeeded in significantly reducing the measurement time of a glass standard sample by applying Bayesian estimation to X-ray fluorescence analysis. The ability to perform rapid non-contact elemental analysis in a nondestructive manner could lead to the widespread use of this technique in many fields, including the analysis of moving industrial products and waste materials while being carried on conveyor belts.
22 Dec 2022
Osaka Metropolitan University scientists discovered the principle of light-induced acceleration of antigen–antibody reaction, allowing for simple, ultrafast, and highly sensitive detection of proteins. The researchers introduced target proteins and probe particles with modified antibodies selectively binding to the target proteins into a small channel and applied irradiation with infrared laser light. They achieved, for the first time, the rapid measurement of trace amounts of attogram-level target proteins after only 3 minutes of laser irradiation. These findings will potentially contribute to breakthroughs in the development of systems for ultra-early diagnosis of various diseases.
Confounding color changing crystal!
13 Dec 2022
A research group at Osaka Metropolitan University has discovered that 2,5-distyrylpyrazine (DSP) crystals undergo a unique photoreaction. Normally, photoreactive color changes proceed uniformly throughout photomechanical molecular crystals, so that all parts of each crystal change color at the same time. However, when light shines evenly on a DSP crystal, the photoreaction propagates from edge to center, deviating from conventional photochemistry models. The group found that this phenomenon was caused by a surface effect and a cooperative effect, which make reactivity extremely high for molecules at the crystal’s edge and those adjacent to molecules that have already changed color.
12 Dec 2022
Researchers at The University of Tokyo show how including the effects of the surrounding water during the aggregation of charged particles can improve the accuracy of simulations, which may help elucidate biological self-assembly
01 Dec 2022
Precise control of quantum systems, such as quantum computers, is of great importance for modern quantum science. One way this has been done is via spin echoes. A research group has discovered a new type of echo, labelling them “energy-band echoes.”
29 Nov 2022
Using a quantum computer, Osaka Metropolitan University researchers utilized quantum logic circuits to directly calculate, in a single calculation, the energy difference between two molecular geometries. The developed method was then applied to execute the molecular geometry optimization of typical molecular systems. On a classical computer, calculations based on the finite difference method require at least two evaluations of the energy for one-dimensional systems, but previous research has shown that a quantum computer can be used to calculate the energy derivatives based on this method in a single calculation. However, quantum circuits relevant to quantum algorithms capable of performing the energy derivative calculations had not been implemented. The research group has successfully created a quantum circuit to calculate the energy derivatives by modifying the quantum circuit used in the previously developed quantum phase difference estimation algorithm.
18 Nov 2022
Exploring virtual human-agent relationships, A fly protein gives clue for human cancers, Rare earth elements formed in neutron star mergers 💥, One-stop process for hydrogen production. Read all in the November's Editor's Choice plus Upcoming event K4DM KNOWLEDGE MARKETPLACE – Bangkok 2022: Exchanging Ideas for a Democratic Myanmar.
07 Nov 2022
Osaka Metropolitan University scientists have discovered that, in the crystalline solid Ba1-xSrxAl2O4, a highly disordered atomic arrangement is formed in the AlO4 network at chemical compositions near the structural quantum critical point, resulting in characteristics of both crystalline and amorphous materials. This hybrid state, which the research team was the first to discover, can be created simply by mixing raw materials uniformly and heating them. These findings are expected to help with the development of hybrid materials for use in harsh environments, such as outer space, by applying the technique to a variety of materials.
27 Oct 2022
Giants in History: Shinichiro Tomonaga (31 March 1906 – 8 July 1979), together with Richard Feynman and Julian Schwinger, was awarded the Nobel Prize in Physics in 1965, for their contributions to advance the field of quantum electrodynamics.
25 Oct 2022
Researchers from The Institute of Scientific and Industrial Research (SANKEN) at Osaka University and collaborating partners prepared hierarchical hydrogels and moldings that consisted of anisotropic, ecofriendly cellulose nanofibers. By simply tailoring the applied voltage during fabrication, complex architectures—such as microneedles and multilayer hydrogels—were easy to prepare. The results of this work will reduce the need for petroleum-based plastics, and in so doing minimize a long-standing source of environmentally persistent waste.
20 Oct 2022
Osaka University researchers showed that the predictions of Einstein’s theory of special relativity in electromagnetism could be detected in the contraction of the electric field created by ultrafast electrons. By achieving femtosecond resolution, they were able to visualize the contracted electric field for the first time. This work can be applicable to particle accelerators and high-energy physics.
18 Oct 2022
Osaka Metropolitan University researchers have created intermetallic alloy nanoparticles of palladium and zinc with an alternating arrangement of zinc and palladium atoms. The intermetallic alloy is more corrosion-resistant than substitutional alloys while retaining the electrocatalytic properties of both metals, which could be useful for developing new non-precious metal electrocatalysts.
05 Oct 2022
Researchers from Osaka University and collaborating partners enhanced DNA detection in silicon nitride nanopores by means of a water–glycerol viscosity gradient. Use of common chemistry under electrochemical flow enabled straightforward detection of individual DNA molecules. With further development, the results of this work could dramatically speed up and lower the cost of genomic sequencing, and facilitate unprecedented integration with compact electronics.
03 Oct 2022
Supermassive black holes can launch fast-moving plasma, which emit strong radio signals known as radio jets. Despite being discovered over 40 years ago, much remains unknown about how radio jets are produced. Now, a research team, led by Tohoku University astrophysicists, has attempted to clarify how plasma gets loaded into radio jets.
30 Sep 2022
Researchers from Osaka University revealed that the surface electronic structure of topological insulators varies according to its surface atomic structure, even though it was believed to have been protected by the symmetry of the electronic structure inside the crystal and is therefore unaffected by differences in surface atomic structure. This work offers a new means of minimizing the power consumption and increasing the speed of next-generation technology.
Editor's Choice
29 Sep 2022
Linked lanthanides shine light on crystal engineering, New technique reveals hidden genome, Red, white and blue alerts for dangerous bacteria & Windows gain competitive edge over global warming. Read all in the September's Editor's Choice plus this month's Asia Research News 2022 magazine pick - Floating sensors to gather ocean data.
21 Sep 2022
Giants in History: Malaysia’s first astrophysicist, Mazlan binti Othman (born 11 December 1951) was instrumental in launching the country’s first microsatellite, and in sending Malaysia’s first astronaut, Sheikh Muszaphar Shukor, into space.
16 Sep 2022
Scientists from The University of Tokyo formulated nonlinear, nonequilibrium energy dissipation relationships using methods from geometry to better understand the kinetics of irreversible chemical processes
12 Sep 2022
Researchers at The University of Tokyo create a geometric representation of thermodynamic systems and apply it to self-replicating processes, which may help improve our understanding of the physical constraints of living organisms
01 Sep 2022
Researchers from Osaka University and collaborating partners detected unique fluorescence blinking patterns in experiments of electron transfer to single DNA molecules. They used these patterns to identify mRNA glioma point mutations in cell culture. The results of this work could help simplify surgical biopsies, enable real-time targeted therapy, and advance scientific understanding of cancer progression.
31 Aug 2022
Researchers from Osaka University and collaborating partners used common nanofabrication procedures to fabricate versatile metal semiconductor superlattices. These superlattices exhibit a long-sought physical phenomenon—the anisotropic anomalous Hall effect at room temperature. This research will help improve the density of data storage, as well as the functionality of other technologies that also depend on advances in the microelectronics industry.
29 Aug 2022
Osaka Metropolitan University scientists developed a simple, rapid method for identifying food poisoning-inducing bacteria based on color differences in the scattered light of composite structures consisting of gold, silver, and copper nanoparticles and polymer particles. Using these composites as test labels bound to specific bacteria, the researchers detected food poisoning bacteria E. coli O26, E. coli O157, and S. aureus as white, red, and blue scattered light, respectively, under the microscope. This new method enables simultaneous identification of multiple bacterial species within one hour, significantly shortening the usual 48-hour time requirement for conventional bacterial tests.

Events

19 Sep 2022 to 21 Sep 2022
The Nano Life Science Institute (WPI-NanoLSI) at Kanazawa University will hold a ‘Workshop on Computational Biophysics of Atomic Force Microscopy – A Lecture Course Approach’ 19-21 September 2022, online.
17 Jan 2022 to 21 Jan 2022
World’s brightest minds converge at virtual summit to inspire young researchers and discuss key issues
12 Jan 2021 to 15 Jan 2021
Organised by the National Research Foundation – Prime Minister’s Office, Singapore, the ninth edition of the Global Young Scientists Summit ([email protected]) will take place 12 to 15 January 2021 as a virtual event.
17 Aug 2020 to 22 Aug 2020
The Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, is calling for participants for 9th Bio-SPM Summer School (previously known as Bio-AFM Summer School)).

Researchers

Prof. Ren Yang
Professor Ren Yang is a physicist and Chair Professor at the Department of Physics at City University of Hong Kong. His research interests focus on the structure-property relationship studies of materials by utilizing synchrotron X-ray and neutron scattering and other techniques.
Robert E Simpson
Robert E Simpson is an Associate Professor at the Singapore University of Technology and Design (SUTD). Rob’s research interests are focused on designing new materials for applications in electronics, photonics, data storage, and biosensing.
Picture of Prof. Jun-Seok Oh
Prof. Jun-Seok Oh is currently working at the Graduate School of Engineering, Osaka City University, He does research in Experimental Plasma Physics and is currently interested in atmospheric pressure plasma applications, 'Plasma Medicine' and 'Plasma Agriculture'.
Prof. Shigekawa's research interest includes fabrication of heterointerfaces and advanced hybrid semiconductor devices such as multijunction solar cells and heterojunction bipolar transistors using surface activated bonding and their characterization.
Picture of Dr. Ma Junzhang
Dr. Ma’s research mainly focuses on electronic structure of topological materials, superconductivity, low-dimensional materials, and correlated materials using Angle Resolved Photoemission Spectroscopy (ARPES).
Prof Pu Jiang is currently an Assistant Professor at the Graduate School of Engineering Applied Physics 1, Nagoya University
Ken-ichi Uchida is a group leader in the Spin Caloritronics Group, Research Center for Magnetic and Spintronic Materials under the National Institute for Materials Science (NIMS), Japan
Rabin Mahat is a result-oriented and multifaceted doctoral student in Experimental Condensed Matter Physics at The University of Alabama, USA. He is currently working under the guidance of Dr. Patrick LeClair, and Dr. Arunava Gupta. He received M.Sc. in Physics in 2013 from Tribhuvan University, Nepal. He also received his second M.Sc. in experimental Condensed Matter Physics from the University of Alabama in 2019. Rabin's main research is focused on the discovery of novel half-metallic Heusler compounds for potential spintronics device applications. He excels academic and professional expertise in process engineering, research procedures and material science.
Sen Yang is a physicist at the Department of Physics, The Chinese University of Hong Kong.
I am an Assistant Professor of the Physics Department at the Institute for Advanced Studies in Basic Science (IASBS), Zanjan, Iran since Dec. 2015. I am a Junior Associate of the International Center of Theoretical Physics (ICTP), Trieste, Italy since January 2017 and a TWAS Young Affiliate member since 2018. I was a visiting researcher at ICTP-SAIFR, São Paulo, Brazil (June - Nov. 2015) under the TWAS fellowship, and also a Post-Doctoral fellow of the School of Physics in the Institute for Research in Fundamental Sciences (IPM) Tehran, Iran (Oct. 2012 - May 2015). I finished my Ph.D. in the Physics Department of Rheinische Friedrich-Wilhelms-Universität Bonn, Germany in Aug. 2012. I did also a one-year Postgraduate Diploma Programme of ICTP (2007-2008) in High Energy Physics.
Dr Anisa Qamar is a professor in Physics in the Department of Physics, University of Peshawar, Pakistan. She is also the President of Pakistan Physical Society.
Associate Professor, Disaster Science Division, International Research Institute of Disaster Science (IRIDeS), Tohoku University
Dr. Zhifeng Huang is a professor at Hong Kong Baptist University, and associate director of nanomaterials at HKBU's Golden Meditech Centre for NeuroRegeneration Sciences. He co-founded Mat-A-Cell Ltd.
Current: Deputy and Administrative Director & Principal Investigator of International Center for Materials Nanoarchitectonics (WPI-MANA) . Professor at the Graduate School of Pure and Applied Sciences, University of Tsukuba
Dr. Omachi is Associate Professor, Research Center for Materials Science, Nagoya University

Giants in history

Malaysia’s first astrophysicist, Mazlan binti Othman (born 11 December 1951) was instrumental in launching the country’s first microsatellite, and in sending Malaysia’s first astronaut, Sheikh Muszaphar Shukor, into space.
Hideki Yukawa (23 January 1907 – 8 September 1981) was awarded the Nobel Prize in Physics in 1949 for predicting the existence of the pi meson subatomic particle. Japan’s first Nobel laureate, Yakawa also expressed his support for nuclear disarmament by signing the Russell–Einstein Manifesto in 1955.
Shinichiro Tomonaga (31 March 1906 – 8 July 1979), together with Richard Feynman and Julian Schwinger, was awarded the Nobel Prize in Physics in 1965, for their contributions to advance the field of quantum electrodynamics. Tomonaga was also a strong proponent of peace, who actively campaigned against the proliferation of nuclear weapons and promoted the peaceful use of nuclear energy.
South Korean theoretical physicist Daniel Chonghan Hong (3 March 1956 – 6 July 2002) achieved fame in the public sphere through his research into the physics of popcorn.
Chinese physicist Xie Xide (19 March 1921 – 4 March 2000) was an influential educator and one of China’s pioneer researchers of solid-state physics.
Physicist Narinder Singh Kapany (31 October 1926 – 4 December 2020) pioneered the use of optical fibres to transmit images, and founded several optical technology companies. Born in Punjab, India, he worked at a local optical instruments factory before moving to London for PhD studies at Imperial College. There, he devised a flexible fibrescope to convey images along bundles of glass fibres.
Japanese physicist Ukichiro Nakaya (1900-1962) made the world’s first artificial snowflakes. He started his research on snow crystals in the early 1930s at Hokkaido University, where there is an unlimited supply of natural snow in winter. By taking over 3,000 photographs, he established a classification of natural snow crystals and described their relationship with weather conditions.
Charles Kuen Kao (Nov. 4, 1933 to Sept. 23, 2018) was an engineer who is regarded as the father of fibre optics. His work in the 1960s on long distance signal transmission using very pure glass fibres revolutionized telecommunications, enabling innovations such as the Internet.
Meghnad Saha (6 October 1893 – 16 February 1956) was an Indian astrophysicist best known for formulating the Saha ionization equation which describes the chemical and physical properties of stars.
Sir Jagadish Chandra Bose (30 November 1858 – 23 November 1937) was a scientist and inventor who contributed to a wide range of scientific fields such as physics, botany and biology.
Subrahmanyan Chandrasekhar (19 October 1910 – 21 August 1995) was an Indian astrophysicist who studied the structure and evolution of stars.
Sir Chandrasekhara Venkata Raman (7 November 1888 – 21 November 1970) was an Indian physicist who performed ground-breaking research in the field of light-scattering.
Mohammad Abdus Salam (29 January 1926 – 21 November 1996) was a theoretical physicist and the first Pakistani to receive a Nobel Prize in science.
Gopalasamudram Narayanan Ramachandran (8 October 1922 – 7 April 2001) is best known for developing the Ramachandran plot to understand the structure of short chains of amino acids, known as peptides.
Chien-Shiung Wu (31 May 1912 – 16 February 1997) was an experimental physicist who made several important contributions to nuclear physics. Wu worked on the Manhattan Project – a top-secret program for the production of nuclear weapons during World War II and helped to develop a process for separating uranium into U235 and U238.
Bibha Chowdhuri (1913 – 2 June 1991) was an Indian physicist who researched on particle physics and cosmic rays. In 1936, she was the only female to complete a M.Sc. degree at the University of Calcutta.
Lin Lanying (7 February 1918 – 4 March 2003) was a Chinese material engineer remembered for her contributions to the field of semiconductor and aerospace materials. Lanying was born into a family who did not believe in educating girls and she was not allowed to go to school.
Gregorio Y. Zara (8 March 1902 – 15 October 1978) was a Filipino engineer and physicist best remembered for inventing the first two-way video telephone. Zara’s video telephone invention enabled the caller and recipient to see each other while conversing, laying the foundation for video-conferencing