Showing 20 articles starting at article 601

< Previous 20 articles        Next 20 articles >

Categories: Ecology: Sea Life, Physics: Quantum Computing

Return to the site home page

Chemistry: Thermodynamics Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Deriving the fundamental limit of heat current in quantum mechanical many-particle systems      (via sciencedaily.com) 

Researchers have mathematically derived the fundamental limit of heat current flowing into a quantum system comprising numerous quantum mechanical particles in relation to the particle count. Further, they established a clearer understanding of how the heat current rises with increasing particle count, shedding light on the performance constraints of potential future quantum thermal devices.

Chemistry: Inorganic Chemistry Computer Science: Encryption Computer Science: General Computer Science: Quantum Computers Energy: Technology Mathematics: Puzzles Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Better cybersecurity with new material      (via sciencedaily.com) 

Digital information exchange can be safer, cheaper and more environmentally friendly with the help of a new type of random number generator for encryption. The researchers behind the study believe that the new technology paves the way for a new type of quantum communication.

Biology: Biotechnology Biology: Evolutionary Biology: Genetics Biology: Marine Ecology: Animals Ecology: Sea Life Paleontology: Early Mammals and Birds Paleontology: General
Published

Mutation rates in whales are much higher than previously reported      (via sciencedaily.com)     Original source 

An international team of marine scientists has studied the DNA of family groups from four different whale species to estimate their mutation rates. Using the newly determined rates, the group found that the number of humpback whales in the North Atlantic before whaling was 86 percent lower than earlier studies suggested.

Biology: Marine Biology: Zoology Ecology: General Ecology: Nature Ecology: Research Ecology: Sea Life Environmental: Ecosystems Geoscience: Geography Geoscience: Oceanography
Published

Coastal fisheries show surprising resilience to marine heat waves      (via sciencedaily.com) 

New research found that marine heat waves -- prolonged periods of unusually warm ocean temperatures -- haven't had a lasting effect on the fish communities that feed most of the world. The finding is in stark contrast to the devastating effects seen on other marine ecosystems cataloged by scientists after similar periods of warming, including widespread coral bleaching and harmful algal blooms.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Taking photoclick chemistry to the next level      (via sciencedaily.com) 

Researchers have been able to substantially improve photoclick chemistry. They were able to boost the reactivity of the photoclick compound in the popular PQ-ERA reaction through strategic molecular substitution. They now report a superb photoreaction quantum yield, high reaction rates and notable oxygen tolerance.

Computer Science: Quantum Computers Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

A simpler way to connect quantum computers      (via sciencedaily.com) 

Researchers have developed a new approach to building quantum repeaters, devices that can link quantum computers over long distances. The new system transmits low-loss signals over optical fiber using light in the telecom band, a longstanding goal in the march toward robust quantum communication networks.

Biology: Marine Ecology: Animals Ecology: Sea Life Geoscience: Geography
Published

Rare 14-ft smalltooth sand tiger shark washes up on Irish coast      (via sciencedaily.com)     Original source 

Scientists believe a huge 14ft smalltooth sand tiger shark, which washed up at Kilmore Quay, Co. Wexford, earlier this year, represents the first of its species to have been found in Ireland's waters. Two other individuals of the same species also washed up on the UK coastline, suggesting this species' geographic range has shifted. The scientists believe these rare finds may offer a window into the future, with more and more species traditionally confined to more tropical waters expected to visit Irish and British waters.

Computer Science: Quantum Computers Offbeat: Computers and Math Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Paving the way for advanced quantum sensors      (via sciencedaily.com) 

Quantum physics has allowed for the creation of sensors far surpassing the precision of classical devices. Now, several new studies show that the precision of these quantum sensors can be significantly improved using entanglement produced by finite-range interactions. Researchers were able to demonstrate this enhancement using entangled ion-chains with up to 51 particles.

Chemistry: Thermodynamics Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics
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.

Engineering: Graphene Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Graphene: Perfection is futile      (via sciencedaily.com) 

It has long been known that graphene has excellent electronic properties. However, it was unclear until now how stable these properties are. Are they destroyed by disturbances and additional effects, which are unavoidable in practice, or do they remain intact? Scientists have now succeeded in developing a comprehensive computer model of realistic graphene structures. It turned out that the desired effects are very stable. Even graphene pieces that are not quite perfect can be used well for technological applications.

Biology: Marine Biology: Microbiology Ecology: Sea Life Geoscience: Oceanography
Published

New species of marine bacteria isolated from a deep-sea cold seep      (via sciencedaily.com)     Original source 

Researchers have isolated a new strain of marine bacteria with unique characteristics from the ocean seabed.

Engineering: Graphene Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Golden rules for building atomic blocks      (via sciencedaily.com) 

Physicists have developed a technique to precisely control the alignment of supermoiré lattices by using a set of golden rules, paving the way for the advancement of next generation moiré quantum matter.

Biology: Marine Ecology: Sea Life Geoscience: Geography Geoscience: Oceanography
Published

Historic red tide event of 2020 fueled by plankton super swimmers      (via sciencedaily.com)     Original source 

A major red tide event occurred in waters off Southern California in the spring of 2020, resulting in dazzling displays of bioluminescence along the coast. Now, for the first time, a study has pinpointed how the plankton species Lingulodinium polyedra -- a dinoflagellate -- was able to create such an exceptionally dense bloom. The answer lies in dinoflagellates' remarkable ability to swim, which lends them a competitive advantage over other species of phytoplankton.

Chemistry: Inorganic Chemistry Computer Science: General Computer Science: Quantum Computers Mathematics: General Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
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.

Biology: Marine Ecology: Sea Life Environmental: Ecosystems Geoscience: Environmental Issues Geoscience: Oceanography
Published

Due to sea-ice retreat, zooplankton could remain in the deep longer      (via sciencedaily.com)     Original source 

Due to intensifying sea-ice melting in the Arctic, sunlight is now penetrating deeper and deeper into the ocean. Since marine zooplankton respond to the available light, this is also changing their behavior -- especially how the tiny organisms rise and fall within the water column. As an international team of researchers has now shown, in the future this could lead to more frequent food shortages for the zooplankton, and to negative effects for larger species including seals and whales.

Biology: Zoology Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Which radio waves disrupt the magnetic sense in migratory birds?      (via sciencedaily.com) 

Many songbirds use the earth's magnetic field as a guide during their migrations, but radiowaves interfere with this ability. A new study has found an upper bound for the frequency that disrupts the magnetic compass.

Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Scientists use quantum device to slow down simulated chemical reaction 100 billion times      (via sciencedaily.com) 

Using a trapped-ion quantum computer, the research team witnessed the interference pattern of a single atom caused by a 'conical intersection'. Conical intersections are known throughout chemistry and are vital to rapid photo-chemical processes such as light harvesting in human vision or photosynthesis.

Anthropology: General Archaeology: General Biology: Marine Ecology: Endangered Species Ecology: Sea Life Paleontology: Fossils Paleontology: General
Published

Wastewater pipe dig reveals 'fossil treasure trove'      (via sciencedaily.com)     Original source 

A new article describes the 266 fossil species as one of the richest and most diverse groups of three-million-year-old fauna ever found in New Zealand. At least ten previously unknown species will be described and named in future research. Fossils of the world's oldest known flax snails, an extinct sawshark spine, and great white shark teeth have all been found in a mound of sand excavated from beneath Mangere Wastewater Treatment Plant in 2020.

Computer Science: Quantum Computers Engineering: Graphene Engineering: Nanotechnology Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
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.