Researchers from the RIKEN Center for Emergent Matter Science and collaborators have succeeded in creating a "superlattice" of semiconductor quantum dots that can behave like a metal, potentially imparting exciting new properties ...
Condensed Matter
May 26, 2023
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66
Light is a key carrier of information. It enables high-speed data transmission around the world via fiber-optic telecommunication networks. This information-carrying capability can be extended to transmitting quantum information ...
Optics & Photonics
May 25, 2023
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22
Scalable photonic quantum computing architectures require photonic processing devices. Such platforms rely on low-loss, high-speed, reconfigurable circuits and near-deterministic resource state generators. In a new report ...
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 22, 2023
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7
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.
Nanophysics
May 17, 2023
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172
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 ...
Quantum Physics
May 11, 2023
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129
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 ...
Optics & Photonics
May 9, 2023
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2
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 ...
Condensed Matter
May 8, 2023
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209
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 ...
Optics & Photonics
May 3, 2023
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239
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 ...
Quantum Physics
Mar 31, 2023
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187
A quantum dot is a semiconductor whose excitons are confined in all three spatial dimensions. As a result, they have properties that are between those of bulk semiconductors and those of discrete molecules. They were discovered by Louis E. Brus, who was then at Bell Labs. The term "Quantum Dot" was coined by Mark Reed.
Researchers have studied quantum dots in transistors, solar cells, LEDs, and diode lasers. They have also investigated quantum dots as agents for medical imaging and hope to use them as qubits.
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