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ScienceDaily: Computers & Math News |
| Photon pairs are more sensitive to rotations than single photons Posted: 12 Jan 2022 07:56 AM PST Quantum states of light have enabled novel optical sensing schemes, e.g., for measuring distance or position, with precisions impossible to achieve with classical light sources such as lasers. The field of quantum metrology has now been pushed even further as a team of researchers showed that photons that are engineered to be entangled in complex spatial structures have, due to quantum phenomena, an advantage for sensing the smallest rotations. The new method allows for more precise measurement than what could be achieved by conventional means. |
| Computer model seeks to explain the spread of misinformation, and suggest counter measures Posted: 11 Jan 2022 12:37 PM PST Researchers have come up with a computer model that mirrors the way misinformation spreads in real life. The work might provide insight on how to protect people from the current contagion of misinformation that threatens public health and the health of democracy. |
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