Physics

Scientists pump up chances for quantum computing

New research has moved the world one step closer to reliable, high-performance quantum computing. A ground-breaking single-electron "pump" device developed by researchers can produce one billion electrons per second and uses quantum mechanics to control them one by one.

Second skyrmion phase found in Cu2OSeO3

A team of researchers affiliated with several institutions in Germany has found a second skyrmion phase in a sample of Cu2OSeO3. In their paper published in the journal Nature Physics, the group describes how they found the second phase and the implications of their results.

Putting a quantum gas through its phases

Physicists have developed an experimental platform for studying the complex phases of a quantum gas characterized by two order parameters. With unprecedented control over the underlying microscopic interactions, the approach should lead to novel insight into the properties of a broad range of fundamentally and technologically important materials.

Machine learning can improve catalytic design

Chemical engineers have shown that combining machine learning and quantum chemistry can save time and expense in designing new catalysts.

NASA Invites Media to View Launch of Mission to “Touch” Sun

Media accreditation is open for the launch of NASA’s Parker Solar Probe, a historic mission that will revolutionize our understanding of the Sun.

Is the Bitcoin network an oligarchy?

Cryptocurrencies like Bitcoin can be analysed because every transaction is traceable. This means that they are an attractive system for physicists to study.

Making opaque materials totally transparent

Most naturally occurring materials have a disordered atomic structure that interferes with the propagation of both sound and electromagnetic waves. When the waves come into contact with these materials, they bounce around and disperse—and their energy dissipates according to a highly complex interference pattern, diminishing in intensity. That means it's virtually impossible to transmit data or energy intact across wave-scattering media and fully leverage the potential of wave technology.

Quantum-enhanced sensing of magnetic fields

An international team of physicists has demonstrated that algorithms and hardware developed originally in the context of quantum computation can be harnessed for quantum-enhanced sensing of magnetic fields.

Sound-waves: Making opaque materials totally transparent

Researchers have found a way to make materials that are normally opaque to sound waves completely transparent. Their system involves placing acoustic relays at strategic locations so that sound waves can propagate at a constant amplitude -- regardless of what may lie in their path. This method could eventually be used to make it possible to hide objects like submarines.

How polymers relax after stressful processing

The polymers that make up synthetic materials need time to de-stress after processing, researchers said. A new study has found that entangled, long-chain polymers in solutions relax at two different rates, marking an advancement in fundamental polymer physics. The findings will provide a better understanding of the physical properties of polymeric materials and critical new insight to how individual polymer molecules respond to high-stress processing conditions.

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