Quantum Physics News

RSS

Supernova Dust Formation Challenged by Early Universe Observations

The most recent observations of Cassiopeia A (Cas A), a supernova remnant, obtained by the James Webb Space Telescope (JWST), were released by the SETI Institute.

16 Jul 2024

Mitigating Microwave Phase Noise in NV Sensors

Researchers submitted a paper exploring microwave phase noise's impact on nitrogen vacancy (NV) sensors. They developed numerical models and experimental methods, including two-point gradiometry, achieving significant phase noise suppression, crucial for high-precision NV-based measurements in magnetometry and spectroscopy.

15 Jul 2024

New Mechanism Produces Large Portions of Particles

Researchers at Washington University in St. Louis, led by Jian Wang, professor and director of WashU's Center for Aerosol Science and Engineering, Lu Xu, assistant professor in the department of energy, environmental and chemical engineering at WashU's McKelvey School of Engineering, and scientists from NASA, NOAA, NCA, and European universities, have reportedly discovered something new in the sky: a mechanism that generates a significant amount of the particles in Earth's atmosphere. The study was published in Science.

15 Jul 2024

Unlocking Neutrino Dynamics in Stellar Cataclysms

A new study published in Physics Letters investigated the possibility of incorporating the flavor-related quantum mechanical effects into the neutrino transport within a neutron star merger remnant through the use of a semi-classical angular moment based method.

15 Jul 2024

Harnessing Oxygen Diffusion in Niobium Cavities for Improved Accelerator Performance

Researchers at the U.S. Department of Energy's Thomas Jefferson National Accelerator Facility are exploring how adding oxygen to the surfaces of particle accelerator cavities, one of the most critical parts of an accelerator, can help scientists custom-tailor their properties for maximum efficiency and minimum cost.

15 Jul 2024

Quantum Algorithm for Photovoltaic Energy MPPT

This study explores a quantum algorithm based on Quantum Particle Swarm Optimization (QPSO) for maximizing photovoltaic energy production under varying environmental conditions. Compared to classical methods, the quantum approach shows superior performance in scenarios like partial shading and high temperatures, demonstrating potential for improved efficiency and reliability in solar energy management.

9 Jul 2024

Time-Reversal Simulator Outperforms Classical Methods

A research team led by Guangcan Guo from the University of Science and Technology of China along with Professors from the University of Hong Kong, constructed a coherent superposition of quantum evolution with two opposite directions in a photonic system and confirmed its advantage in characterizing input-output indefiniteness

8 Jul 2024

Webb Space Telescope Discovers Early Galaxy Growth Fueled by Dramatic Merger

An international research group led by the Italian National Institute for Astrophysics observed the dramatic interaction between a quasar inside the PJ308–21 system and two massive satellite galaxies in the distant universe using the Near-Infrared Spectrograph on board the James Webb Space Telescope.

8 Jul 2024

Adapting Quantum Methods for Modern Drug Discovery

Computer-aided drug design, particularly quantum mechanics (QM) methods, offers chemically accurate insights but is limited by computational efficiency, especially for large systems. Researchers summarize recent advances in the application of QM-based methods in bioactive species characterization, structure-guided hit-to-lead optimization, and the identification of molecular features of bioactivity.

2 Jul 2024

Advanced Quantum State Control in Bilayer Graphene for Quantum Computing

A group of researchers from the Pohang University of Science and Technology and the National Institute for Materials Science have successfully controlled the quantum mechanical properties of Andreev-bound states in bilayer graphene-based Josephson junctions using gate voltage.

2 Jul 2024