Newswise Feature Channel: Quantum Mechanics

Quantum Leap: NIST Selects FAU for New Generation of Encryption Standards

Florida Atlantic University — Wed, 26 Mar 2025 08:30:18 EST

The National Institute of Standards and Technology (NIST) has selected FAU's Hamming Quasi-Cyclic (HQC) algorithm for standardization in its Post-Quantum Cryptography project. HQC was chosen for its security, efficiency and practical implementation in secure key exchange, which protects digital communications and ensures safe encryption against future quantum computing threats. FAU is the only U.S. university involved among all the authors of the two, winning key-encapsulation mechanism schemes selected by NIST, highlighting its prominent role in the field of post-quantum cryptography.

Researchers Test New Type of Quantum Computing Protocol Using Qudits, Not Qubits.

Perimeter Institute for Theoretical Physics — Tue, 25 Mar 2025 17:25:04 EST

Higher dimension 'qudits' may offer advantages over qubits in quantum computing, according to new research published in Nature Physics.

Breakthrough in Quantum Sensing Could Revolutionise High-Precision Measurement Technologies

University of Portsmouth — Thu, 20 Mar 2025 17:35:01 EST

Breakthrough in quantum sensing could revolutionise high-precision measurement technologies

Nuclear Physicists Create Scalable Quantum Circuits to Simulate Fundamental Physics

Department of Energy, Office of Science — Fri, 14 Mar 2025 21:05:50 EST

Simulations of equations from the Standard Model of particle physics are too difficult for classical supercomputers. In this research, scientists for the first time created scalable quantum circuits to prepare a simulation of the starting state for a particle accelerator collision to test aspects of strong interactions. The researchers first determined these circuits for small systems using classical computers, then scaled the quantum circuits to a large system on more than 100 qubits of IBM's quantum computers.

Quantum Spin Model Made From Nanographene Molecules

Empa, Swiss Federal Laboratories for Materials Science and Technology — Fri, 14 Mar 2025 09:00:20 EST

Empa researchers from the nanotech@surfaces laboratory have experimentally recreated another fundamental theoretical model from quantum physics, which goes back to the Nobel Prize laureate Werner Heisenberg. The basis for the successful experiment was a kind of "quantum Lego" made of tiny carbon molecules known as nanographenes.

'Nanodot' Control Could Fine-Tune Light for Sharper Displays, Quantum Computing

Penn State Materials Research Institute — Thu, 13 Mar 2025 21:05:37 EST

Newly achieved precise control over light emitted from incredibly tiny sources, a few nanometers in size, embedded in two-dimensional (2D) materials could lead to remarkably high-resolution monitors and advances in ultra-fast quantum computing, according to an international team led by researchers at Penn State and Universite Paris-Saclay.

Topological Beaming of Light: A New Approach to Precision Beam Shaping

Chinese Academy of Sciences — Thu, 13 Mar 2025 09:05:56 EST

A novel approach to optical beam shaping based on topological physics effect experimentally demonstrated for the first time. By fabricating thin-film dielectric structures with precisely engineered properties, this new technique allows systematic control over beam profiles as opposed to conventional approaches involving tedious numerical optimization procedures.

Scientists Take an Important Step Toward Mitigating Errors in Analog Quantum Simulations of Many-Body Problems

Department of Energy, Office of Science — Tue, 11 Mar 2025 09:10:40 EST

Simulations of quantum many-body problems are a challenge for even the most powerful conventional computers. Quantum computing has the potential to solve this challenge using an approach called an analog quantum simulation. To succeed, these simulations need theoretical approximations of how quantum computers represent many-body systems. In this research, nuclear physicists developed a new framework to analyze these approximations and minimize their effects.

New Empa Laboratory to Unlock the Quantum Potential of Carbon

Empa, Swiss Federal Laboratories for Materials Science and Technology — Thu, 06 Mar 2025 06:50:33 EST

At the end of January, Empa opened a new laboratory that aims to harness quantum effects from carbon. This could pave the way for sustainable quantum technologies, including quantum computers. The project is supported by the Werner Siemens Foundation.

Single-Qubit Sensing Puts New Spin on Quantum Materials Discovery

Oak Ridge National Laboratory — Wed, 05 Mar 2025 07:00:06 EST

Working at nanoscale dimensions, billionths of a meter in size, a team of scientists led by the Department of Energy's Oak Ridge National Laboratory revealed a new way to measure high-speed fluctuations in magnetic materials.

QSA Quantum Technologies Advance Insights into Materials Physics

Lawrence Berkeley National Laboratory — Mon, 03 Mar 2025 20:05:10 EST

QSA plays a critical role in supporting the missions of the DOE's Advanced Scientific Computing Research (ASCR) program.

New Measurement Technique Sheds Light on Bonding Properties of Actinides

Karlsruhe Institute of Technology (KIT) — Fri, 28 Feb 2025 07:30:05 EST

An international team of researchers at the Karlsruhe Institute of Technology (KIT) has developed a new method for analyzing actinides. The method provides unique insights into the electronic structures and bonding properties of these heavy, radioactive elements in the bottom row of the periodic table.

Quantum Career Fair Celebrates 100 years of Quantum Mechanics

Brookhaven National Laboratory — Tue, 25 Feb 2025 09:15:33 EST

The U.S. Department of Energy's (DOE) National Quantum Information Science (QIS) Research Centers hosted the fourth annual QIS Career Fair on Jan. 22, 2025. The virtual event, led by the Co-design Center for Quantum Advantage (C2QA), a National QIS Research Center led by DOE's Brookhaven National Laboratory, kicked off the centers' celebration of the International Year of Quantum Science and Technology (IYQ).

Illuminating the Proton's Inner Workings

University of Adelaide — Thu, 20 Feb 2025 21:50:18 EST

Scientists have now mapped the forces acting inside a proton, showing in unprecedented detail how quarks--the tiny particles within--respond when hit by high-energy photons. The international team includes experts from the University of Adelaide who are exploring the structure of sub-atomic matter to try and provide further insight into the forces that underpin the natural world.

What Is Quantum Coherence?

Argonne National Laboratory — Wed, 19 Feb 2025 19:40:49 EST

What is of quantum coherence and how it is used for quantum sensing and quantum computing applications?

Magnetic Switch Traps Quantum Information Carriers in One Dimension

University of Michigan — Wed, 19 Feb 2025 05:00:26 EST

A quantum "miracle material" could support magnetic switching, a team of researchers at the University of Regensburg and University of Michigan has shown.

ETRI has Challenged of Commercializing Global Startups at CES 2025

National Research Council of Science and Technology — Mon, 17 Feb 2025 09:00:09 EST

Electronics and Telecommunications Research Institute (ETRI) participated in CES 2025 with Daejeon Metropolitan City to explore opportunities for ETRI-startups and ETRI Laboratory Enterprises to expand overseas and support their global growth.

Homing in on Spinning Gluons: New Study Nearly Nixes the Negative

Thomas Jefferson National Accelerator Facility — Wed, 12 Feb 2025 20:30:12 EST

Researchers have been working for decades to understand the details of where the proton gets its intrinsic angular momentum, otherwise referred to as its spin. Recently, there have been indications that the spin contribution of the gluons could either be positive or negative. Now, a new approach that avoids assumptions and re-analyzes observational data with lattice quantum chromodynamics points strongly toward a positive gluon spin contribution, (delta)g, to the proton spin.

UdeM, AI and physics: the French connection

Universite de Montreal — Tue, 11 Feb 2025 18:20:04 EST

In Paris this week and next, Catherine Regis and Yoshua Bengio will discuss the risks posed to society by artificial intelligence, and Gilles Brassard will discuss quantum theory with Alain Aspect.

Gilles Brassard Wants to Keep Us Safe

Universite de Montreal — Thu, 06 Feb 2025 19:05:59 EST

A pioneer in quantum information theory, the UdeM professor is spreading the word internationally on the threats of quantum computing and how quantum cryptography can help mitigate them.