Researchers achieved groundbreaking results in intercity quantum key distribution using semiconductor quantum dots. They demonstrated high secret key rates and low error ratios over a 79 km link, showcasing the potential for robust quantum communication networks.
By Samudrapom Dam
10 Jul 2024
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.
By Samudrapom Dam
9 Jul 2024
Recent research carried out by physicists associated with the LHCb Collaboration and published in the journal Physical Review Letters reveals that the density of the environment affects how quarks form protons and neutrons, suggesting new factors were at play in the early universe.
Researchers published in Entropy revealed that quantum coherence in the initial state of a quantum thermometer enhances its precision using a nonequilibrium approach. By optimizing quantum Fisher information, they demonstrated that transient thermalization dynamics and initial state coherence significantly improve thermometry accuracy.
By Samudrapom Dam
8 Jul 2024
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
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.
Conventional encryption methods rely on complex mathematical algorithms and the limits of current computing power.
Researchers explored the connection between the quantum speed limit (QSL) and time resolution in quantum sensing, particularly through Ramsey interferometry. They established that the best possible time resolution is intrinsically tied to the QSL, offering practical insights for optimizing quantum sensor applications.
By Samudrapom Dam
4 Jul 2024
Researchers have successfully developed the first white light-emitting electrochemical cell (LEC) using carbon dots, enhancing sustainability in lighting devices. By employing a novel water-based synthesis and green solvents, the study showcases improved device stability and performance, marking a significant advancement in optoelectronic materials.
By Samudrapom Dam
3 Jul 2024
Researchers from the University of São Paulo and Kiel University offered a novel approach to the monitoring of QD creation.
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.
By Silpaja Chandrasekar
2 Jul 2024
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.
Researchers in the journal Light: Science & Applications demonstrated chiral behavior in a quantum system without encircling its Liouvillian exceptional points (LEPs). Using a Paul-trapped ion setup, they showed asymmetric mode conversion crucial for quantum thermodynamic cycles, highlighting the role of non-adiabatic processes like the Landau-Zener-Stückelberg phase in chiral state transfer dynamics.
By Samudrapom Dam
1 Jul 2024
A team of researchers has used machine learning approaches to effectively show automatic charge state detection in quantum dot devices.
Quantum materials, especially quantum dots, have significantly enhanced solar cell efficiency, contributing to clean energy advancements. This review explores the application of various quantum dots, including InP, CdS, Au, Ga, and carbon-based quantum dots, in solar cell development, highlighting their substantial impact on power conversion efficiency.
By Samudrapom Dam
27 Jun 2024