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Categories: Computer Science: Quantum Computers, Energy: Technology
Published Hotter quantum systems can cool faster than initially colder equivalents
(via sciencedaily.com) The Mpemba effect is originally referred to the non-monotonic initial temperature dependence of the freezing start time, but it has been observed in various systems -- including colloids -- and has also become known as a mysterious relaxation phenomenon that depends on initial conditions. However, very few have previously investigated the effect in quantum systems. Now, the temperature quantum Mpemba effect can be realized over a wide range of initial conditions.
Published Direct power generation from methylcyclohexane using solid oxide fuel cells
(via sciencedaily.com) Original source Methylcyclohexane is very promising as a hydrogen carrier that can safely and efficiently transport and store hydrogen. However, the dehydrogenation process using catalysts has issues due to its durability and large energy loss. Recently, researchers have succeeded in using solid oxide fuel cells to generate electricity directly from methylcyclohexane and recover toluene for reuse. This research is expected to not only reduce energy requirements but also explore new chemical synthesis by fuel cells.
Published Quantum computer unveils atomic dynamics of light-sensitive molecules
(via sciencedaily.com) Researchers have implemented a quantum-based method to observe a quantum effect in the way light-absorbing molecules interact with incoming photons. Known as a conical intersection, the effect puts limitations on the paths molecules can take to change between different configurations. The observation method makes use of a quantum simulator, developed from research in quantum computing, and offers an example of how advances in quantum computing are being used to investigate fundamental science.
Published Making the invisible, visible: New method makes mid-infrared light detectable at room temperature
(via sciencedaily.com) Scientists have developed a new method for detecting mid-infrared (MIR) light at room temperature using quantum systems.
Published Researcher finds inspiration from spider webs and beetles to harvest fresh water from thin air
(via sciencedaily.com) A team of researchers is designing novel systems to capture water vapor in the air and turn it into liquid. They have developed sponges or membranes with a large surface area that continually capture moisture from their surrounding environment.
Published New quantum device generates single photons and encodes information
(via sciencedaily.com) A new approach to quantum light emitters generates a stream of circularly polarized single photons, or particles of light, that may be useful for a range of quantum information and communication applications. A team stacked two different, atomically thin materials to realize this chiral quantum light source.
Published Math enables blending hydrogen in natural gas pipelines
(via sciencedaily.com) Mathematical modeling can show how to safely blend hydrogen with natural gas for transport in existing pipeline systems. A secure and reliable transition to hydrogen is one of the proposed solutions for the shift to a net-zero-carbon economy.
Published Scientists invent micrometers-thin battery charged by saline solution that could power smart contact lenses
(via sciencedaily.com) Scientists have developed a flexible battery as thin as a human cornea, which stores electricity when it is immersed in saline solution, and which could one day power smart contact lenses.
Published New study finds ways to suppress lithium plating in automotive batteries for faster charging electric vehicles
(via sciencedaily.com) A new study has found a way to prevent lithium plating in electric vehicle batteries, which could lead to faster charging times.
Published Do measurements produce the reality they show us?
(via sciencedaily.com) The measurement values determined in sufficiently precise measurements of physical systems will vary based on the relation between the past and the future of a system determined by its interactions with the meter. This finding may explain why quantum experiments often produce paradoxical results that can contradict our common-sense idea of physical reality.
Published Research group detects a quantum entanglement wave for the first time using real-space measurements
(via sciencedaily.com) A team has created an artificial quantum magnet featuring a quasiparticle made of entangled electrons, the triplon.
Published Scientists develop fermionic quantum processor
(via sciencedaily.com) Researchers have designed a new type of quantum computer that uses fermionic atoms to simulate complex physical systems. The processor uses programmable neutral atom arrays and is capable of simulating fermionic models in a hardware-efficient manner using fermionic gates. The team demonstrated how the new quantum processor can efficiently simulate fermionic models from quantum chemistry and particle physics.
Published Steam condenser coating could save 460M tons of CO2 annually
(via sciencedaily.com) If coal and natural gas power generation were 2% more efficient, then, every year, there could be 460 million fewer tons of carbon dioxide released and 2 trillion fewer gallons of water used. A recent innovation to the steam cycle used in fossil fuel power generation could achieve this.
Published 'Topological gardening' to achieve unexpected spin transport
(via sciencedaily.com) 'Trimming' the edge-states of a topological insulator yields a new class of material featuring unconventional 'two way' edge transport in a new theoretical study. The new material, a topological crystalline insulator (TCI) forms a promising addition to the family of topological materials and significantly broadens the scope of materials with topologically nontrivial properties, paving the way for novel techniques to manipulate edge transport in future electronics. For example, 'switching' the TCI via an electric field breaking the symmetry supporting the nontrivial band topology, thus suppressing the edge current.
Published New approach shows hydrogen can be combined with electricity to make pharmaceutical drugs
(via sciencedaily.com) The world needs greener ways to make chemicals. In a new study, researchers demonstrate one potential path toward this goal by adapting hydrogen fuel cell technologies.
Published Move over lithium-ion: Zinc-air batteries a cheaper and safer alternative
(via sciencedaily.com) Zinc-air batteries have emerged as a better alternative to lithium in a recent study into the advancement of sustainable battery systems.
Published Groundbreaking green propane production method
(via sciencedaily.com) New research reveals a promising breakthrough in green energy: an electrolyzer device capable of converting carbon dioxide into propane in a manner that is both scalable and economically viable.
Published Demon hunting: Physicists confirm 67-year-old prediction of massless, neutral composite particle
(via sciencedaily.com) In 1956, theoretical physicist David Pines predicted that electrons in a solid can do something strange. While they normally have a mass and an electric charge, Pines asserted that they can combine to form a composite particle that is massless, neutral, and does not interact with light. He called this particle a 'demon.' Now, researchers have finally found Pines' demon 67 years after it was predicted.
Published Quantum physicists simulate super diffusion on a quantum computer
(via sciencedaily.com) Quantum physicists have successfully simulated super diffusion in a system of interacting quantum particles on a quantum computer. This is the first step in doing highly challenging quantum transport calculations on quantum hardware and, as the hardware improves over time, such work promises to shed new light in condensed matter physics and materials science.
Published Switching 'spin' on and off (and up and down) in quantum materials at room temperature
(via sciencedaily.com) Researchers have found a way to control the interaction of light and quantum 'spin' in organic semiconductors, that works even at room temperature.