Physics

Ultracold atoms could provide 2D window to exotic 1D physics

Physicists propose a new vantage point to observe quantum fractionalization.

Step right up for bigger 2D sheets

Small steps make a big difference in the growth of 2D crystals. A new theory demonstrates why.

The force is with us, always? Tuning quantum vacuum forces from attractive to repulsive

Scientists can put two uncharged metal plates close together in a vacuum, and 'voila!' -- they will attract each other. In 1948, Dutch theoretical physicist Hendrick Casimir first predicted an attractive force responsible for this effect. Scientists have wondered, can there be an equal yet opposite kind of Casimir force? Physicists have shown for the first time that the Casimir force can be reversed and made repulsive, tunable or enhanced, based on the material inserted in between the plates.

Magnonic devices can replace electronics without much noise

Electronic devices such as transistors are getting smaller and will soon hit the limits of conventional performance based on electrical currents.

Transforming magnetic storage

A new frontier in the study of magnetic materials, femtomagnetism, could lead to ultrafast magnetic storage devices that would transform information processing technologies. Now, researchers report a tabletop method to characterize such a faster magnetic storage using high-harmonic generation of laser light in iron thin films.

How to catch a magnetic monopole in the act

A research team led by the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) has created a nanoscale "playground" on a chip that simulates the formation of exotic magnetic particles called monopoles. The study—published recently in Science Advances - could unlock the secrets to ever-smaller, more powerful memory devices, microelectronics, and next-generation hard drives that employ the power of magnetic spin to store data.

Transforming magnetic storage might stem from the vision of quantum

Magnetic materials have a worldwide market share of some $50 billion per year. A new frontier in the study of these materials, femtomagnetism, could lead to ultrafast magnetic storage devices that would transform information processing technologies with storage devices several orders of magnitude faster.

Opening door to smaller memory devices, microelectronics, and spintronics

A research team has created a nanoscale 'playground' on a chip that simulates the formation of exotic magnetic particles called 'monopoles.' The study could unlock the secrets to ever-smaller, more powerful memory devices, microelectronics, and next-generation hard drives that employ the power of magnetic spin to store data.

A new approach to an old question: How do we actually cooperate?

In the animal kingdom, birds band together to ward off predators, and honeybees work collectively to benefit the entire hive. Animals of the human persuasion can act cooperatively too, at times, though this behavior is not completely understood.

Researchers use machine learning to more quickly analyze key capacitor materials

Capacitors, given their high energy output and recharging speed, could play a major role in powering the machines of the future, from electric cars to cell phones.

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