Quantum information is a powerful technology for increasing the amount of information that can be processed and communicated securely. Using quantum entanglement to securely distribute a secret quantum state among multiple ...
Optics & Photonics
Apr 12, 2023
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179
Over the past forty years, physicists have learned to cool increasingly large objects down to temperatures close to the absolute zero: atoms, molecules and, more recently, also nanoparticles consisting of billions of atoms. ...
Nanophysics
Nov 21, 2022
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73
Research into quantum engineering may provide a number of significant advancements in sensor technology, but optical loss and signal noise have—until recently—held these applications back. In "Realistic model of entanglement-enhanced ...
Optics & Photonics
Nov 2, 2022
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205
Researchers from Arizona State University and Zhejiang University in China, along with two theorists from the United Kingdom, have been able to demonstrate for the first time that large numbers of quantum bits, or qubits, ...
Superconductivity
Oct 13, 2022
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2225
Tiny particles are interconnected despite sometimes being thousands of kilometers apart—Albert Einstein called this "spooky action at a distance." Something that would be inexplicable by the laws of classical physics is ...
Optics & Photonics
Oct 6, 2022
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877
American physicist John Clauser won the 2022 Nobel Prize for a groundbreaking experiment vindicating quantum mechanics—a fundamental theory governing the subatomic world that is today the foundation for an emerging class ...
General Physics
Oct 5, 2022
6
1775
A team of researchers at Tsinghua University in China, has broken the distance record for quantum secure direct communication (QSDC) by sending information using their protocol a distance of 102.2 km. In their paper published ...
Trapped ions excited with a laser beam can be used to create entangled qubits in quantum information systems, but addressing several stationary pairs of ions in a trap requires multiple optical switches and complex controls. ...
Quantum Physics
Jan 28, 2022
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334
Researchers for the first time have demonstrated a quantum light source based on a meta-lens array. The approach offers a promising platform for both high-dimensional photon entanglement and the coherent control of multiple ...
Optics & Photonics
Jul 27, 2021
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213
In a breakthrough for quantum computing, University of Chicago researchers have sent entangled qubit states through a communication cable linking one quantum network node to a second node.
Quantum Physics
Feb 25, 2021
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2624
