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Physicists take step toward fault-tolerant quantum computing
量子计算 经典计算机 量子比特 纠错机制
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2023/5/17
Some classical computers have error correction built into their memories based on bits; quantum computers, to be workable in the future, will need error correction mechanisms, too, based on the vastly...
Physicists harness quantum “time reversal” to measure vibrating atoms（图）
量子 时间反转 振动原子 原子钟 量子传感器
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2023/6/9
The quantum vibrations in atoms hold a miniature world of information. If scientists can accurately measure these atomic oscillations, and how they evolve over time, they can hone the precision of ato...
Physicists see electron whirlpools for the first time（图）
电子漩涡 流体 电子行为
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2023/6/8
Though they are discrete particles, water molecules flow collectively as liquids, producing streams, waves, whirlpools, and other classic fluid phenomena.
Not so with electricity. While an electric c...
Physicists embark on a hunt for a long-sought quantum glow（图）
量子辉光 安鲁效应 加速粒子
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2023/6/9
Editor's note: This article has been updated to clarify that the new study in Physical Review Letters focuses on the detection of Unruh effect on a single accelerated particle, and to note that other ...
Vibrating atoms make robust qubits, physicists find（图）
振动原子 量子比特 量子计算机
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2023/6/9
MIT physicists have discovered a new quantum bit, or “qubit,” in the form of vibrating pairs of atoms known as fermions. They found that when pairs of fermions are chilled and trapped in an optical la...
Harvard-led physicists take big step in race to quantum computing（图）
量子计算 可编程 量子模拟器 光镊
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2023/6/21
Ateam of physicists from the Harvard-MIT Center for Ultracold Atoms and other universities has developed a special type of quantum computer known as a programmable quantum simulator capable of operati...
Physicists Discover Hidden Aspects of Electrodynamics
Physicists Hidden Aspects Electrodynamics
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2017/4/27
Radio waves, microwaves and even light itself are all made of electric and magnetic fields. The classical theory of electromagnetism was completed in the 1860s by James Clerk Maxwell. At the time, Max...
UW-Madison physicists build basic quantum computing circuit
UW-Madison physicists basic quantum computing circuit
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2010/3/4
Exerting delicate control over a pair of atoms within a mere seven-millionths-of-a-second window of opportunity, physicists at the University of Wisconsin-Madison created an atomic circuit that may he...
Universal state observed by Australian physicists（图）
"universality" magnetic field superconductors
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2007/7/6
19 June 2007，A team of Australian and Chinese scientists have found the first observed evidence for "universality" in a paper to be published in the prestigious Nature Physics journal next month.