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Nanophysics May 22, 2023

Scientists discover nonlocal effects of biexciton emission in large semiconductor nanocrystals

In a new paper published in eLight, a team of scientists led by Professors Haizheng Zhong and Yongyou Zhang from the Beijing Institute of Technology and Professor Haiyan Qin from Zhejiang University have discovered nonlocal ...

Nanophysics May 17, 2023

Using nanofaceting to manipulate quantum dots into nanocrystals

A new method of controlling the shape of tiny particles about one tenth of the width of human hair could make the technology that powers our daily lives more stable and more efficient, scientists claim.

Quantum Âé¶¹ÒùÔºics May 11, 2023

Jellybeans: A sweet solution for overcrowded circuitry in quantum computer chips

The silicon microchips of future quantum computers will be packed with millions, if not billions of qubits—the basic units of quantum information—to solve the greatest problems facing humanity. And with millions of qubits ...

Optics & Photonics May 9, 2023

Breakthrough in dynamical localization transitions and Berry curvature-induced transport

The way light moves around inside an optical microcavity provides an exciting opportunity to explore the connection between classical and quantum physics. This field of research is known as quantum chaos, and it has the potential ...

Condensed Matter May 8, 2023

Symmetric graphene quantum dots for future qubits

Quantum dots in semiconductors such as silicon or gallium arsenide have long been considered hot candidates for hosting quantum bits in future quantum processors. Scientists at Forschungszentrum Jülich and RWTH Aachen University ...

Optics & Photonics May 3, 2023

Light amplification by stimulated emission from electrically driven colloidal quantum dots finally achieved

In a result decades in the making, Los Alamos scientists have achieved light amplification with electrically driven devices based on solution-cast semiconductor nanocrystals—tiny specs of semiconductor matter made via chemical ...

Quantum Âé¶¹ÒùÔºics Mar 31, 2023

Connecting distant silicon qubits for scaling up quantum computers

In a demonstration that promises to help scale up quantum computers based on tiny dots of silicon, RIKEN physicists have succeeded in connecting two qubits—the basic unit for quantum information—that are physically distant ...

Optics & Photonics Mar 28, 2023

Improved chip-scale color conversion lasers could enable many next-generation quantum devices

In two new studies, researchers at the National Institute of Standards and Technology (NIST) have greatly improved the efficiency and power output of a series of chip-scale devices that generate laser light at different colors ...

Optics & Photonics Mar 27, 2023

Engineers develop dual-purpose laser and LED device based on colloidal quantum dot technology

A Los Alamos National Laboratory team has overcome key challenges toward technologically viable high-intensity light emitters based on colloidal quantum dot technology, resulting in dual-function devices that operate as both ...

Optics & Photonics Mar 20, 2023

Ultrafast beam-steering breakthrough

In a major breakthrough in the fields of nanophotonics and ultrafast optics, a Sandia National Laboratories research team has demonstrated the ability to dynamically steer light pulses from conventional, so-called incoherent ...

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