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Demonstration of the universal quantum error correcting code with superconducting qubits

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IMAGE: (a) Encoding quantum circuit of the five-qubit code. (b) Expectation values of 31 stabilizers for the encoded logical state |T> L. (c) Expectation values of logical Pauli operators and state fidelity.
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Credit: @Science China Press
Universal fault-tolerant quantum computing relies on the implementation of quantum error correction. An essential milestone is the achievement of error-corrected logical qubits that genuinely benefit from error correction, outperforming simple physical qubits. Although tremendous efforts have been devoted to demonstrate quantum error correcting codes with different quantum hardware, previous realizations are limited to be against certain types of errors or to prepare special logical states. It remains one of the greatest and also notoriously difficult challenges to realize a universal quantum error correcting code for more than a decade. ....

Shao Rong , Ming Gong , Xyu Xu , Jian Wei Pan , Shaowei Li , Cheng Zhi Peng , Yulin Wu , Xiongfeng Ma , Zhen Zhang , Futian Liang , Xiaobo Zhu , Jin Lin , Chui Deng , Youwei Zhao , Yunchao Liu , Shiyu Wang , Chen Zha , Simonc Benjamin , Qi Zhao , Anhui Initiative In Quantum Information Technologies , National Natural Science Foundation Of China , University Of Oxford , University Of Science , Chinese Academy Of Science , Technology Committee Of Shanghai Municipality , National Science ,

Energy-efficient design for mmWave-enabled NOMA-UAV networks

Credit: @Science China Press
Non-orthogonal multiple access (NOMA) and millimeter-wave (mmWave) are two crucial techniques of 5G to meet the explosive capacity demands. On the other hand, UAVs deployed as aerial base stations are potential to provide ubiquitous coverage and satisfy users multifarious requirements due to their flexibility and mobility. Nevertheless, the finite onboard energy is a fundamental limit of UAVs, which can deter the performance of UAV communication networks. Therefore, the researchers Xiaowei PANG and Nan ZHAO from Dalian University of Technology, Jie TANG and Xiuyin ZHANG from South China University of Technology, and Yi QIAN from University of Nebraska-Lincoln have focused on designing energy-efficient transmission schemes for mmWave-enabled NOMA-UAV networks. The network model is illustrated in Fig. 1, where the UAV equipped with multiple antennas serves K single-antenna ground users who are grouped into M clusters in the downlink. ....

United States , Dalian University Of Technology , Information Sciences , University Of Nebraska , China University Of Technology , Dalian University , South China University , Technology Engineering Computer Science , ஒன்றுபட்டது மாநிலங்களில் , டேலியன் பல்கலைக்கழகம் ஆஃப் தொழில்நுட்பம் , தகவல் அறிவியல் , பல்கலைக்கழகம் ஆஃப் நெப்ராஸ்கா , சீனா பல்கலைக்கழகம் ஆஃப் தொழில்நுட்பம் , டேலியன் பல்கலைக்கழகம் , தெற்கு சீனா பல்கலைக்கழகம் , தொழில்நுட்பம் பொறியியல் கணினி அறிவியல் ,

Machine learning can identify cancerous cells by their acidity

Researchers have developed a method, described in APL Bioengineering, that uses machine learning to determine whether a single cell is cancerous by detecting its pH. Their approach can discriminate cells originating from normal tissues from cells originating from cancerous tissues, as well as among different types of cancer, while keeping the cells alive. The method relies on treating the cells with bromothymol blue, a pH-sensitive dye that changes color depending on acidity. ....

United States , National University Of Singapore , National University , Chwee Teck Lim , Biomechanics Biophysics , Chemistry Physics Materials Sciences , Medicine Health , Technology Engineering Computer Science , Biomedical Environmental Chemical Engineering , ஒன்றுபட்டது மாநிலங்களில் , தேசிய பல்கலைக்கழகம் ஆஃப் சிங்கப்பூர் , தேசிய பல்கலைக்கழகம் , பயோமெக்கானிக்ஸ் உயிர் இயற்பியல் , வேதியியல் இயற்பியல் பொருட்கள் அறிவியல் , மருந்து ஆரோக்கியம் , தொழில்நுட்பம் பொறியியல் கணினி அறிவியல் , உயிர் மருத்துவ சுற்றுச்சூழல் இரசாயன பொறியியல் ,

Quadruple fusion imaging via transparent ultrasound transducer

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IMAGE: A schematic diagram of a quadruple fusion imaging system developed by coaxially combining a laser and a transparent ultrasound transducer. 1) Ultrasound image, 2) Photoacoustic image, 3) Optical coherence tomography.
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Credit: POSTECH
A quadruple fusion optical and ultrasound imaging system has been developed that allows diagnosis of eye conditions or tumors or to see the environment inside the body using a transparent ultrasound transducer.
Professor Chulhong Kim of POSTECH s Department of Electrical Engineering, Convergence IT Engineering, and Mechanical Engineering, Dr. Byullee Park of Department of Convergence IT Engineering, Ph.D. candidate Jeongwoo Park of School of Interdisciplinary Bioscience and Bioengineering, Professor Hyung Ham Kim of Department of Convergence IT Engineering, and Professor Unyong Jeong of Department of Materials Science and Engineering, in joint research with Professor Hong Kyun Kim of Kyungpook Nat ....

United States , Unyong Jeong , Chulhong Kim , Hong Kyun Kim , Department Of Convergence It Engineering , Department Of Electrical Engineering , National Rd Program , Science Research Program , National Research Foundation , Department Of Materials Science , Kyungpook National University School Of Medicine , Jeongwoo Park Of School Interdisciplinary Bioscience , Ministry Of Education , Ministry Of Science , Electrical Engineering , Mechanical Engineering , Byullee Park , Jeongwoo Park , Interdisciplinary Bioscience , Professor Hyung Ham Kim , Professor Unyong Jeong , Materials Science , Professor Hong Kyun Kim , Kyungpook National University School , National Academy , Basic Science Research Program ,

How hummingbirds hum

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IMAGE: Anna s hummingbird flying in the experimental setup, drinking sugar water from a fake flower.
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Credit: Photo: Lentink Lab / Stanford University.
The hummingbird is named after its pleasant humming sound when it hovers in front of flowers to feed. But only now has it become clear how the wing generates the hummingbird s namesake sound when it is beating rapidly at 40 beats per second. Researchers from Eindhoven University of Technology, Sorama, a TU/e spin-off company, and Stanford University meticulously observed hummingbirds using 12 high-speed cameras, 6 pressure plates and 2176 microphones. They discovered that the soft and complex feathered wings of hummingbirds generate sound in a fashion similar to how the simpler wings of insect do. The new insights could help make devices like fans and drones quieter. ....

Patrick Wijnings , David Lentink , Henk Corporaal , Daniel Shorr , Ben Hightower , Rick Scholte , Diana Chin , Sander Stuijk , Eindhoven University Of Technology , Lentink Lab , National Science Foundation , Stanford University , Eindhoven University , Oscillating Aerodynamic Forces Explain , Flapping Flight , Rivers Ingersoll , Jade Nguyen , Science Foundation , Ecology Environment , Technology Engineering Computer Science , Biomedical Environmental Chemical Engineering , Electrical Engineering Electronics , Research Development , Robotry Artificial Intelligence , டேனியல் குறுகிய , பென் ஹைட்டவர் ,