Physics

News

Image of quantum-circuit black hole lasers
08 Oct 2021
Researchers propose quantum circuit black hole lasers to explore Hawking radiation
City University of Hong Kong, CityU, CityUResearch
14 Sep 2021
Similar to a magnet that always has both south and north poles, a kind of special quasiparticles in condensed matter called “Weyl Fermions” always appear in pairs with opposite chirality. There had been no experimental report that unpaired Weyl points exist in condensed matter until recently, a City University of Hong Kong (CityU) physicist observed the first unpaired singular Weyl magnetic monopole in a specific kind of single crystalline solid.
02 Sep 2021
Researchers at Kanazawa University report in Proceedings of the National Academy of Sciences how a protein molecular motor can chop off a piece of cell membrane. The constrict-and-cut mechanism resembles that of a ratchet motor, and is of importance in processes mediating the entry of particles into cells.
02 Sep 2021
Researchers have developed a general quantum algorithm that can directly calculate the energy difference of an atom and molecule using a quantum computer. By avoiding the need to calculate the total molecular energies, the general algorithm is expected to be applied not only to quantum chemical calculations but also to various physical and mathematical problems, which are intractable with nowadays classical computers.
23 Aug 2021
Magnesium rechargeable batteries show immense promise for a greener future because of their energy density, safety, and cost. But the lack of high-performance cathode materials has impeded their development. Now, a research team has developed liquid-sulfur/sulfide composite cathodes that enable high-rate magnesium batteries.
19 Jul 2021
Researchers from The University of Tokyo Institute of Industrial Science report a machine learning-based model for predicting the bonding properties of materials
07 Jul 2021
A new laser that generates quantum particles can recycle lost energy for highly efficient, low threshold laser applications
Graphic image of anisotropic conductivity
05 Jul 2021
Osaka Prefecture University develops a method to design and control the path of electron flow in a polycrystalline material. Using epitaxial growth approach, researchers address the electrical conductivity problem of thin film materials by realizing a highly conductive in-plane orientation of a metal-organic framework. Furthermore, they show that it is possible to fabricate oriented thin film patterns by integration with UV lithography technology.
21 Jun 2021
By virtually reproducing physical reservoir computing, a new information processing technology, using numerical simulation, the present study reveals that vortices in fluid flow phenomena in the downstream region of a cylinder are the key to information processing capability. It is expected that this result concerning fluid flow vortices and information processing capability will be useful in enhancing the information processing capability of the physical reservoir using fluid flow.
3D printable optical setup images
17 Jun 2021
Researchers at Osaka Prefecture University have established an approach to identify the orientation of molecules and chemical bonds in crystalline organic-inorganic hybrid thin films deposited on substrates using Fourier transform infrared spectroscopy (FT-IR) and polarized infrared light with a 3D-printed attenuated total reflectance (ATR) unit. This inexpensive method with laboratory-grade equipment quickly reaches the crystal-structure model of even extremely thin films of less than 10 nm.
16 Jun 2021
Researchers from The University of Tokyo Institute of Industrial Science report colloidal spheres that can be used to determine the rotational dynamics of dense suspensions
1,3-Diradicals Embedded in Curved Paraphenylene Units: Singlet versus Triplet State
09 Jun 2021
Chemical rings of carbon and hydrogen atoms curve to form relatively stable structures capable of conducting electricity and more — but how do these curved systems change when new components are introduced? Researchers based in Japan found that, with just a few sub-atomic additions, the properties can pivot to vary system states and behaviors, as demonstrated through a new synthesized chemical compound.
axion
08 Jun 2021
No one knows what happened in the Universe for its first 400,000 years, but a new paper suggests discovering the hypothetical particle axion could shed light on the early history of the Universe. What's more, current dark matter experiments may have already detected it in its data.
02 Jun 2021
A new nanometer-scale proximity labeling system can target histidine residues quicker than conventional methods thanks to the inorganic chemical singlet oxygen. The discovery generates a new chemical tool in protein chemical modification.
19 May 2021
Researchers at the National University of Singapore and Tohoku University have demonstrated that an array of electrically connected spintronic devices can harvest a 2.4 GHz wireless signal, which can be used to power and charge small electronic devices and sensors.
14 May 2021
Researchers have observed DNA spooling and unspooling in real time using CRISPR to attach fluorescent tags to very specific DNA points in living cells.
12 May 2021
Printing electronic circuits could soon get easier and cheaper.
14 Apr 2021
Prof. June.M. Kwak, and Prof. Chang-Hee Cho are selected for the research funds granted by Samsung Science & Technology Foundation
City University of Hong Kong, CityU, CityUResearch
14 Apr 2021
In the era of Artificial Intelligence (AI), a novel optical “micro-comb” chip developed by a physicist from the City University of Hong Kong (CityU) has played a pivotal role in building the fastest optical neural network processor. An international research team has recently demonstrated the world’s fastest and most powerful optical neural network processor, which is capable of operating at faster than 10 trillion operations per second. When applied to handwritten digital recognition, a common benchmark in AI, it achieved an accuracy of nearly 90%. It represents an enormous leap forward for neural networks and neuromorphic processing.
02 Apr 2021
A study by KAIST researchers revealed that an ionized gas jet blowing onto water, also known as a ‘plasma jet’, produces a more stable interaction with the water’s surface compared to a neutral gas jet. This finding reported in the April 1 issue of Nature will help improve the scientific understanding of plasma-liquid interactions and their practical applications in a wide range of industrial fields in which fluid control technology is used, including biomedical engineering, chemical production, and agriculture and food engineering.
Human brain cancer cells forming spherical structures on the DN gel
29 Mar 2021
A hydrogel, a type of soft matter, developed at Hokkaido University successfully reverted cancer cells back to cancer stem cells within 24 hours, in six different human cancer types. This could lead to the development of anti-cancer stem cell drugs and personalized medicines.
29 Mar 2021
A paper by the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU) Director Ooguri Hirosi and Project Researcher Matthew Dodelson on the string theoretical effects outside the black hole photon sphere has been selected for the “Editors’ Suggestion” of the journal Physical Review D. Their paper was published on March 24, 2021.
The optical forces acting on a moving nanodiamond
26 Mar 2021
Scientists have developed a method to use lasers to control the movement of nanodiamonds with fluorescent centers.
17 Mar 2021
Researchers improve their newly established quantum algorithm, bringing it to one-tenth the computational cost of Quantum Phase Estimation, and use it to directly calculate the vertical ionization energies of light atoms and molecules such as CO, O2, CN, F2, H2O, NH3 within 0.1 electron volts of precision.
08 Mar 2021
Researchers at Kanazawa University report in Biosensors and Bioelectronics a successful test of a sensor for measuring hydrogen peroxide concentrations near cell membranes. The sensor has the potential to become a tool for new cancer therapies.
08 Mar 2021
What is the origin of black holes and how is that question connected with another mystery, the nature of dark matter? Dark matter comprises the majority of matter in the Universe, but its nature remains unknown.
Feedback compensation tests whether measurement results fit their physical reality
16 Feb 2021
Holger F. Hofmann, professor in the Graduate School of Advanced Science and Engineering, Hiroshima University, published a method to experimentally demonstrate the precision of quantum measurements on Feb. 3 in Physical Review Research. His work has implications for our fundamental understanding of physics at the level of individual quantum objects.
10 Feb 2021
Researchers at The University of Tokyo discover a new law about how the complex network of phase-separated structures grows with time, which may lead to more efficient batteries and industrial catalysts
18 Jan 2021
Researchers at Osaka City University use quantum superposition states and Bayesian inference to create a quantum algorithm, easily executable on quantum computers, that accurately and directly calculates energy differences between the electronic ground and excited spin states of molecular systems in polynomial time.
elasticity in microfabricated diamond
08 Jan 2021
Diamond is the hardest material in nature. But out of many expectations, it also has great potential as an excellent electronic material. A joint research team led by City University of Hong Kong (CityU) has demonstrated for the first time the large, uniform tensile elastic straining of microfabricated diamond arrays through the nanomechanical approach. Their findings have shown the potential of strained diamonds as prime candidates for advanced functional devices in microelectronics, photonics, and quantum information technologies.

Events

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. 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