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Researchers Identify Fundamental Limits on Quantum Battery Reliability and Power Delivery

Researchers Identify Fundamental Limits on Quantum Battery Reliability and Power Delivery

New research has established fundamental limits on the reliability of quantum batteries, specifically concerning fluctuations in both the energy delivered and the rate of delivery. Published in PRX Quantum, the study highlights that quantum mechanics imposes inherent trade-offs, preventing quantum batteries from simultaneously achieving arbitrarily small fluctuations in delivered energy and stable power. This limitation arises because work and power are represented by non-commuting operators in closed quantum batteries, similar to position and momentum in quantum mechanics. The research also investigated how different charging strategies, such as parallel, collective, and hybrid charging, influence this trade-off. Stronger collective charging was found to increase power but also led to greater power fluctuations, thereby reducing reliability. This suggests that maximum power alone is an insufficient metric for evaluating quantum battery performance. The findings are a significant step towards developing pr...

NIST Researchers Enhance Nuclear Material Monitoring with Quantum Sensors

NIST Researchers Enhance Nuclear Material Monitoring with Quantum Sensors

Researchers at the U.S. National Institute of Standards and Technology (NIST), in collaboration with institutions including the University of Colorado Boulder and Los Alamos National Laboratory, have developed and utilized ultrasensitive quantum sensors to more accurately measure X-ray emissions from radioactive elements. This breakthrough allows for improved monitoring of nuclear materials at power plants and weapons facilities. Traditionally, the unique gamma-ray patterns used to identify and quantify nuclear materials are obscured by X-ray emissions in the same energy range. The new quantum sensors, specifically transition edge sensors (TESs), function as miniature, highly sensitive thermometers. When an X-ray photon strikes a TES, it causes a minuscule but measurable increase in the superconducting film's resistance, which is directly proportional to the photon's energy. This enables high-resolution energy measurements, reducing the uncertainty of X-ray energy measurements by one-third to one-eighth co...

University at Buffalo Physicists Uncover Mathematical Link Between Quantum Magnetism and Black Hole Physics

University at Buffalo Physicists Uncover Mathematical Link Between Quantum Magnetism and Black Hole Physics

Physicists at the University at Buffalo have discovered a mathematical solution that connects ultraslow quantum magnetism to ultrafast black hole physics. The research, led by Jamir Marino, an assistant professor in the Department of Physics, College of Arts and Sciences, and published in Physical Review Letters, establishes a link between spin glasses and the Sachdev-Ye-Kitaev (SYK) model. Spin glasses are states of matter where atomic magnets are disordered and effectively frozen. The SYK model describes fast, entangled states of matter relevant to black hole physics and quantum chaos. The team's findings reveal how matter can transition from some of the slowest quantum dynamics to some of the fastest. This breakthrough occurred as Marino and his team investigated the behavior of spin glasses under stronger quantum fluctuations, particularly at extremely low temperatures where mathematical descriptions have been challenging. Using quantum field theory techniques, they observed that instead of simply free...

U.S. Department of Energy Launches $215 Million Competition for Error-Corrected Quantum Computers by 2028

U.S. Department of Energy Launches $215 Million Competition for Error-Corrected Quantum Computers by 2028

The U.S. Department of Energy (DOE) has initiated a $215 million competition aimed at accelerating the development of fault-tolerant quantum computers. The challenge calls for private companies to build a scientifically useful quantum machine with at least 100 logical qubits by 2028. This initiative, known as the Quantum Genesis Q Competition, seeks to overcome the current limitations of quantum computers, which are prone to errors despite their potential to solve problems beyond the scope of conventional supercomputers. The competition will be structured in phases, with initial awards of up to $1.5 million for early milestones, and larger sums, including a $100 million pool, for teams demonstrating first-generation machines meeting the logical qubit target. Additional bonus pools of $50 million each are available for reaching 150 and 200 logical qubits.

Inter-American Development Bank and IAEA Partner on Nuclear Technologies for Latin America and the Caribbean

Inter-American Development Bank and IAEA Partner on Nuclear Technologies for Latin America and the Caribbean

The Inter-American Development Bank (IDB) and the International Atomic Energy Agency (IAEA) have signed a memorandum of understanding (MoU) to enhance cooperation on nuclear energy and development in Latin America and the Caribbean. This agreement aims to explore technical, institutional, and economic aspects of nuclear technologies, including large-scale reactors, small modular reactors (SMRs), and other emerging technologies. The MoU provides a framework for dialogue, knowledge sharing, technical assistance, capacity building, energy-system planning, and infrastructure development. This collaboration reflects a growing recognition among international institutions, including the World Bank and Asian Development Bank, that nuclear energy can play a significant role in sustainable development, energy security, and economic growth. Currently, nuclear power accounts for 1.8% of electricity generation in the region, with only Brazil, Argentina, and Mexico utilizing it. IAEA projections suggest a potential 2.5-...

No Definitive Information on DNA-Origami Nanorobots Found in Provided Sources

No Definitive Information on DNA-Origami Nanorobots Found in Provided Sources

The provided sources do not contain information confirming the existence or development of a DNA-origami nanorobot. One source discusses 'Blades' in a video game context, stating they possess human DNA and a functionally human body, but this is within the fictional realm of 'Xenoblade' and does not refer to real-world nanorobotics. The other source details research on the 'Impact of Plasma Ashing on Mixed Monolayer Doping of Silicon,' focusing on controlling dopant concentration for ultra-shallow junctions and nanoscale devices. This research involves chemical processes like O2 plasma ashing and X-ray photoelectron spectroscopy to preserve phosphorus while removing carbon, and Kelvin probe force microscopy to measure silicon work function. Neither of these sources provides any information or evidence regarding DNA-origami nanorobots.

Sandia National Laboratories Proposes 10x Larger Z Machine for Nuclear Weapons Research

Sandia National Laboratories Proposes 10x Larger Z Machine for Nuclear Weapons Research

Sandia National Laboratories in Albuquerque, New Mexico, is publicly discussing plans to build a successor to its Z machine, which would be approximately 10 times larger than the current facility. The Z machine is described as the most powerful pulsed-power machine and X-ray source on Earth, firing around 200 times a year. Each firing generates 26 million amps of electricity in about 100 nanoseconds, creating an X-ray flash peaking at 350 terawatts. This process is so intense that it causes a 'mini little earthquake' around the facility, detectable in the nearby Sandia Mountains. The current Z machine uses 2,160 capacitors to store and release 20 megajoules of electrical energy, which is then focused onto a target no bigger than a spool of thread, vaporizing tungsten wires into plasma. The lab is currently pitching this concept to the National Nuclear Security Administration (NNSA).

Sofab Inks Receives NSF Grant to Advance Scalable Tin Oxide Layers for Perovskite Solar Cells

Sofab Inks Receives NSF Grant to Advance Scalable Tin Oxide Layers for Perovskite Solar Cells

Sofab Inks Receives NSF Grant to Advance Scalable Tin Oxide Layers for Perovskite Solar Cells

IAEA and Inter-American Development Bank Partner to Advance Nuclear Energy in Latin America and the Caribbean

IAEA and Inter-American Development Bank Partner to Advance Nuclear Energy in Latin America and the Caribbean

The International Atomic Energy Agency (IAEA) and the Inter-American Development Bank (IDB) have signed a memorandum of understanding (MoU) to foster cooperation on nuclear technologies in Latin America and the Caribbean. This agreement, signed on the sidelines of the UN General Assembly, aims to explore the technical, institutional, and economic aspects of nuclear energy, including large-scale reactors, small modular reactors (SMRs), and other emerging technologies. The MoU provides a framework for dialogue, knowledge sharing, technical assistance, capacity building, energy-system planning, and infrastructure development. This collaboration reflects a shift in attitude among international institutions, which were previously hesitant to fund new nuclear energy projects. IAEA Director General Rafael Mariano Grossi emphasized that this partnership combines the IAEA's technical expertise with the IDB's development experience and regional reach to help countries in the region make informed decisions about thei...

UCLA Secures $75 Million in National Science Foundation Grants for Quantum Technology Research

UCLA Secures $75 Million in National Science Foundation Grants for Quantum Technology Research

Two quantum computing institutes at UCLA have collectively received $75 million in grants from the National Science Foundation (NSF). The institutes, named Fault-Tolerant Quantum Systems, Architectures and Applications and Challenge Institute for Quantum Computation, each secured $37.5 million over a five-year period. These funds are earmarked to advance quantum technologies, which are designed to operate at speeds significantly faster than conventional digital devices. Jens Palsberg, a professor of computer science and co-principal investigator for one of the institutes, emphasized that these grants will create substantial opportunities for students and enhance UCLA's standing in the field of quantum computing research. The Fault-Tolerant Quantum Systems institute, co-led by the UCLA Henry Samueli School of Engineering, Massachusetts Institute of Technology, and Harvard University, focuses on developing reliable and accessible quantum systems.

QuEra Computing Predicts Useful Quantum Computers Within Two Years, Challenging Industry Timelines

QuEra Computing Predicts Useful Quantum Computers Within Two Years, Challenging Industry Timelines

QuEra Computing Predicts Useful Quantum Computers Within Two Years, Challenging Industry Timelines

Nuclear Transmutation Offers Theoretical Path to Lead-to-Gold Conversion, Remains Impractical

Nuclear Transmutation Offers Theoretical Path to Lead-to-Gold Conversion, Remains Impractical

Modern physics confirms that the theoretical conversion of lead to gold is possible through nuclear transmutation. This process involves altering an atom's nucleus by bombarding elements like platinum or mercury with high-energy subatomic particles in particle accelerators or nuclear reactors. While medieval alchemists attempted to achieve this through chemical reactions, which are fundamentally incapable of changing the number of protons in an atom's nucleus, modern science has found a nuclear pathway. Gold has 79 protons, mercury 80, and lead 82. Chemical reactions only involve the sharing or transfer of valence electrons, leaving the nucleus untouched. However, nuclear physics allows for the alteration of the atomic nucleus, making the alchemical dream of transmuting elements physically possible, albeit through nuclear means rather than chemical ones.