科学与环境

Quantum chip holds multiple photons at once, opening path to scalable memory

来源: Phys.org - latest science and technology news stories · 发布于

Quantum chip holds multiple photons at once, opening path to scalable memory
来源: Phys.org - latest science and technology news stories

For highly fragile quantum information systems, the ability to store quantum information is vital—but also challenging. Quantum information is transported in particles of light called photons, which often must be temporarily paused (or "stored") while other, slower quantum operat

For highly fragile quantum information systems, the ability to store quantum information is vital—but also challenging. Quantum information is transported in particles of light called photons, which often must be temporarily paused (or "stored") while other, slower quantum operations catch up. This storage must be performed on microchips as small as 1 centimeter (0.4 inches)—a distance covered by light in a few trillionths of a second.

Storing photons for a microsecond would represent a massive leap forward for the capabilities of quantum chips.

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A quantum prediction from 1931 just came to life
科学与环境

A quantum prediction from 1931 just came to life

Nearly a century after physicist Hans Bethe predicted them, scientists have created and directly observed unusual quantum states known as “Bethe strings” in an ultracold gas. By cooling cesium atoms to near absolute zero and trapping them in thousands of tiny one-dimensional tube

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