Dual-polarization two-dimensional valley photonic crystals

The introduction of topology in photonic systems has attracted considerable attention not only for the elaborate molding of light but also for its practical applications in novel photonic devices. Originally, the quantum ...

Statistical analysis of radio-flaring brown dwarf population

Brown dwarfs are known as "failed stars," owing to the lack of central hydrogen burning. They bridge the gap between planets and stars. Some brown dwarfs are found to maintain kilogauss magnetic fields and produce flaring ...

A four-stroke engine for atoms

If you switch a bit in the memory of a computer and then switch it back again, you have restored the original state. There are only two states that can be called "0 and 1."

Multilevel polarization switching in ferroelectric thin films

Ferroelectric materials have found widespread use in everyday technology mainly owing to their electric polarization that can be switched between two distinct states. Overcoming the binary limit of ferroelectrics in order ...

Earth's atmosphere may be source of some lunar water

Hydrogen and oxygen ions escaping from Earth's upper atmosphere and combining on the moon could be one of the sources of the known lunar water and ice, according to new research by University of Alaska Fairbanks Geophysical ...

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