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Search results for phonons

Superconductivity Aug 29, 2025

Uncovering the mysteries of high-temperature cuprate superconductors

In their quest to explore and characterize high-temperature superconductors, physicists have mostly focused on a material that is not the absolute highest. That's because that crystal is much easier to split into uniform, ...

Quantum Âé¶¹ÒùÔºics Aug 23, 2025

Âé¶¹ÒùÔºics-inspired computer architecture solves complex optimization problems

A line of engineering research seeks to develop computers that can tackle a class of challenges called combinatorial optimization problems. These are common in real-world applications such as arranging telecommunications, ...

Condensed Matter Aug 21, 2025

Defect engineering accelerates carrier relaxation in GaN-based LEDs

A study conducted by researchers from the Changchun Institute of Optics, Fine Mechanics and Âé¶¹ÒùÔºics (CIOMP) of the Chinese Academy of Sciences has demonstrated how nitrogen vacancies (VN) resolve asymmetric carrier injection ...

Condensed Matter Aug 15, 2025

Unified theory may reveal more superconducting materials

Electricity flows through wires to deliver power, but it loses energy as it moves, delivering less than it started with. But that energy loss isn't a given. Scientists at Penn State have found a new way to identify types ...

Optics & Photonics Aug 15, 2025

Using lasers to bring crystal vibrations to their quantum ground state

Using new techniques, Yale researchers have demonstrated the ability to use lasers to cool quantized vibrations of sound within massive objects to their quantum ground state, the lowest energy allowable by quantum mechanics. ...

Condensed Matter Aug 14, 2025

Scientists achieve first observation of phonon angular momentum in chiral crystals

In a new study published in Nature Âé¶¹ÒùÔºics, scientists have achieved the first experimental observation of phonon angular momentum in chiral crystals.

Quantum Âé¶¹ÒùÔºics Aug 13, 2025

Using sound to remember quantum information 30 times longer

While conventional computers store information in the form of bits, fundamental pieces of logic that take a value of either 0 or 1, quantum computers are based on qubits. These can have a state that is simultaneously both ...

Condensed Matter Aug 11, 2025

Powerful form of quantum interference paves the way for phonon-based technologies

Just as overlapping ripples on a pond can amplify or cancel each other out, waves of many kinds—including light, sound and atomic vibrations—can interfere with one another. At the quantum level, this kind of interference ...

General Âé¶¹ÒùÔºics Aug 7, 2025

Scientists discover way to pause ultrafast melting in silicon using precisely timed laser pulses

A team of physicists has discovered a method to temporarily halt the ultrafast melting of silicon using a carefully timed sequence of laser pulses. This finding opens new possibilities for controlling material behavior under ...

General Âé¶¹ÒùÔºics Jul 25, 2025

Researchers demonstrate first bidirectional asymmetric frequency conversion in a single system

A research team in Korea has experimentally demonstrated, for the first time in the world, a nonlinear wave phenomenon that changes its frequency—either rising or falling—depending on which direction the waves come from.

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