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USTC Scientists Break Quantum Key Distribution Record Over 830-km Optical Fibers

“Quantum key distribution (QKD) is presently attracting immense research interest on the global level due to its revolutionary potential to enable information-theoretically secure communication. However, the wide applications of QKD are curtailed by the channel loss since the encoded photons …

USTC Finds a New Way Out for Flexible Electronics

“Flexible electronics generally refer to the electronic devices built on conformable or stretchable substrates. On account of their rapid development in the information era, flexible electronics were thought very highly of and have been applied into various fields including electronic …

Researchers Observe Enhanced Bulk Photovoltaic Effect in 2D Ferroelectric Material

“Bulk photovoltaic effect (BPVE) is widely used in generating electricity. As a process of energy transference from photons to electrons and of voltage formation within ferroelectric material, BPVE acts like a dam, raising up “water” (voltage) to generate “power” (electric …

Researchers Realize Measurement Beyond Standard Quantum Limit with Nitrogen-vacancy Centers in Diamond

“Measurement is an important means of human cognition of nature and many measurements are limited by standard quantum limit (SQL). SQL is defined as the measured noise levels set by quantum mechanics. Quantum entanglement can be used to beat SQL …

USTC Improves Anyonic Photonic Quantum Simulation

“A research team from University of Science and Technology of China (USTC) led by academician GUO Guangcan, collaborating with Prof. PACHOS Jinannis from University of Leeds, realized topological quantum computation by the braiding of parafermion zero modes and the magic …

USTC Realizes On-chip Valley-dependent Quantum Interference

“The research team led by academician GUO Guangcan from University of Science and Technology of China (USTC) of the Chinese Academy of Sciences, collaborating with the researchers from Sun Yat-sen University and Zhejiang University, realized two-photon quantum interference in the …

New Quantum Repeaters Could Enable a Scalable Quantum Internet

“Quantum repeaters that can store multiplexed signals; provide heralded signals of entanglement; and operate at telecommunications wavelengths have been developed by two independent research teams. Their work could prove to be an important step towards the creation of a scalable …

Researchers Achieve 50dB Noiseless at all Optical Isolation

“Chinese researchers achieved 51.5dB nonreciprocal isolation in the atomic ensemble, which is the highest isolation ratio in the non-magnetic nonreciprocal field. They discussed the quantum noise problem in nonreciprocal devices for the first time. The result was published on …

USTC Realizes Coherent Storage of Light over 1 Hour

“Remote quantum distribution on the ground is limited because of the loss of photon in optical fibers. One solution for remote quantum communication lies in quantum memories: photons are stored in the long-lived quantum memory (quantum flash drive) and then …

Elephant-trunk-shaped Robotic Arm Performs Daily Interactions like Human

“Skillful robots are always the pursuit of robotics research. Inspired by nature, researchers have designed soft-bodied robotic arms which can easily perform tasks, like surgery, that rigid robots require complicated computation. Yet performing interactions such as opening doors in daily …