Computer Science: Quantum Computers Physics: Acoustics and Ultrasound
Published

An exotic interplay of electrons      (via sciencedaily.com) 

Water that simply will not freeze, no matter how cold it gets -- a research group has discovered a quantum state that could be described in this way. Experts have managed to cool a special material to near absolute zero temperature. They found that a central property of atoms -- their alignment -- did not 'freeze', as usual, but remained in a 'liquid' state. The new quantum material could serve as a model system to develop novel, highly sensitive quantum sensors.

Computer Science: Quantum Computers Space: Cosmology
Published

Physicists observe wormhole dynamics using a quantum computer      (via sciencedaily.com)     Original source 

Scientists have developed a quantum experiment that allows them to study the dynamics, or behavior, of a special kind of theoretical wormhole.

Computer Science: Artificial Intelligence (AI) Computer Science: Quantum Computers Engineering: Robotics Research
Published

Pulses driven by artificial intelligence tame quantum systems      (via sciencedaily.com)     Original source 

Machine learning drives self-discovery of pulses that stabilize quantum systems in the face of environmental noise.

Computer Science: Quantum Computers Offbeat: Paleontology and Archeology
Published

New quantum computing feat is a modern twist on a 150-year-old thought experiment      (via sciencedaily.com) 

New research demonstrates a 20x improvement in resetting a quantum bit to its '0' state, using a modern version of the 'Maxwell's demon'.

Computer Science: Quantum Computers Energy: Nuclear
Published

Quantum algorithm of the direct calculation of energy derivatives developed for molecular geometry optimization      (via sciencedaily.com) 

Researchers have successfully extended the quantum phase difference estimation algorithm, a general quantum algorithm for the direct calculations of energy gaps, to enable the direct calculation of energy differences between two different molecular geometries. This allows for the computation, based on the finite difference method, of energy derivatives with respect to nuclear coordinates in a single calculation.

Computer Science: Quantum Computers
Published

The entanglement advantage      (via sciencedaily.com) 

Researchers have demonstrated a way to entangle atoms to create a network of atomic clocks and accelerometers. The method has resulted in greater precision in measuring time and acceleration.

Computer Science: Quantum Computers
Published

Achieving a quantum fiber      (via sciencedaily.com) 

Researchers have successfully demonstrated the transport of two-photon quantum states of light through a phase-separated Anderson localization optical fiber.

Computer Science: Quantum Computers
Published

Spin correlation between paired electrons demonstrated      (via sciencedaily.com)     Original source 

Physicists have experimentally demonstrated for the first time that there is a negative correlation between the two spins of an entangled pair of electrons from a superconductor. For their study, the researchers used spin filters made of nanomagnets and quantum dots.

Computer Science: Artificial Intelligence (AI) Computer Science: Quantum Computers
Published

Quantum algorithms save time in the calculation of electron dynamics      (via sciencedaily.com) 

Quantum computers promise significantly shorter computing times for complex problems. But there are still only a few quantum computers worldwide with a limited number of so-called qubits. However, quantum computer algorithms can already run on conventional servers that simulate a quantum computer. A team has succeeded in calculating the electron orbitals and their dynamic development using an example of a small molecule after a laser pulse excitation. In principle, the method is also suitable for investigating larger molecules that cannot be calculated using conventional methods.

Computer Science: Encryption Computer Science: Quantum Computers Mathematics: Puzzles
Published

Microlaser chip adds new dimensions to quantum communication      (via sciencedaily.com) 

With only two levels of superposition, the qubits used in today's quantum communication technologies have limited storage space and low tolerance for interference. Engineering's hyperdimensional microlaser generates 'qudits,' photons with four simultaneous levels of information. The increase in dimension makes for robust quantum communication technology better suited for real-world applications.

Computer Science: Quantum Computers
Published

Grid of quantum islands could reveal secrets for powerful technologies      (via sciencedaily.com)     Original source 

Researchers have created grids of tiny clumps of atoms known as quantum dots and studied what happens when electrons dive into these archipelagos of atomic islands. Measuring the behavior of electrons in these relatively simple setups promises deep insights into how electrons behave in complex real-world materials and could help researchers engineer devices that make possible powerful quantum computers and other innovative technologies.

Geoscience: Severe Weather
Published

Warming oceans likely to shrink the viable habitat of many marine animals -- but not all      (via sciencedaily.com) 

A new article adds a new chapter to the story of how some animals may respond to the warming oceans.

Geoscience: Severe Weather
Published

Researchers investigate development of coastal peatland in Indonesia over thousands of years      (via sciencedaily.com) 

Tropical peatlands are one of the most efficient carbon sinks. The flipside is that they can become massive emitters of carbon if they are damaged, for instance by land use change, degradation or fire. This can lead to faster climate warming. Researchers now show how peatland in the coastal areas in Sumatra and Borneo in Indonesia developed over thousands of years and how climate and sea level influenced their dynamics throughout.

Geoscience: Severe Weather
Published

Past eight years: Warmest since modern recordkeeping began      (via sciencedaily.com) 

Earth's global average surface temperature in 2021 tied with 2018 as the sixth warmest on record, according to independent analyses done by NASA and NOAA. Collectively, the past eight years are the warmest years since modern recordkeeping began in 1880.

Geoscience: Severe Weather
Published

New insights into sea ice and climate change      (via sciencedaily.com) 

A 170 m record of marine sediment cores extracted from Adélie Land in Antarctica is yielding new insights into the complicated relationship between sea ice and climate change.

Geoscience: Geomagnetic Storms Geoscience: Severe Weather Space: The Solar System
Published

New study ties solar variability to the onset of decadal La Nina events      (via sciencedaily.com) 

A new study shows a correlation between the end of solar cycles and a switch from El Nino to La Nina conditions in the Pacific Ocean, suggesting that solar variability can drive seasonal weather variability on Earth.

Geoscience: Severe Weather
Published

Antarctic seals reveal worrying threats to disappearing glaciers      (via sciencedaily.com) 

More Antarctic meltwater is surfacing than was previously known, modifying the climate, preventing sea ice from forming and boosting marine productivity- according to new research. For the first time, researchers have been able to obtain full-depth glacial meltwater observations in winter, using instruments attached to the heads of seals living near the Pine Island Glacier, in the remote Amundsen Sea in the west of Antarctica.

Geoscience: Severe Weather
Published

Researchers use car collisions with deer to study mysterious animal-population phenomena      (via sciencedaily.com) 

By parsing data on weather, deer populations and deer-vehicle collisions in Wisconsin, investigators show spatial synchrony could be driving population cycles, rather than the reverse.

Geoscience: Severe Weather
Published

2020 tied for warmest year on record, NASA analysis shows      (via sciencedaily.com) 

Earth's global average surface temperature in 2020 tied with 2016 as the warmest year on record, according to an analysis by NASA.

Geoscience: Severe Weather
Published

Largest study of Asia's rivers unearths 800 years of paleoclimate patterns      (via sciencedaily.com) 

The SUTD study will be crucial for assessing future climatic changes and making more informed water management decisions.