As part of the Center for Quantum Leaps, a signature initiative of the Arts & Sciences strategic plan, physicist Kater Murch and his research group use nano-fabrication techniques to construct superconducting quantum circuits that allow them to probe fundamental questions in quantum mechanics. Qubits are promising systems for realizing quantum schemes for computation, simulation and data encryption.

Military surveillance and communication can be hampered by adverse conditions such as fog, extreme temperatures or long distances. An engineer in the McKelvey School of Engineering at Washington University in St. Louis is implementing quantum technology to develop ways that lasers can operate effectively in these challenging environments.

Research groups of Prof. LI Chuanfeng, Prof. XIANG Guoyong and Prof. HOU Zhibo, led by Academician GUO Guangchan from University of Science and Technology of China (USTC) of Chinese Academy of Science (CAS), in collaboration with Professor ZHU Huangjun from Fudan University, demonstrated for the first time that inequivalent mutually unbiased bases (MUBs) have different information extraction capabilities for quantum information processing.

Precisely measuring the energy states of individual atoms has been a historical challenge for physicists due to atomic recoil. When an atom interacts with a photon, the atom “recoils” in the opposite direction, making it difficult to measure the position and momentum of the atom precisely. This recoil can have big implications for quantum sensing, which detects minute changes in parameters, for example, using changes in gravitational waves to determine the shape of the Earth or even detect dark matter.

Researchers using QuiX Quantum's technology have successfully demonstrated the on-chip generation of Greenberger-Horne-Zeilinger (GHZ) states, a critical component for the advancement of photonic quantum computing. This breakthrough establishes QuiX Quantum’s integrated technology as the leading platform for photonic quantum computing, and further validates QuiX Quantum’s roadmap to deliver a scalable universal quantum computer.

Prof. YU Sixia, Associate Researcher SUN Liangliang and ZHOU Xiang from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS), in collaboration with Prof. XU Zhenpeng from Anhui University (AHU) and Armin Tavakoli from Lund University, proposed an approach to quantify entanglement using the standard entanglement witness procedure under three common experimental scenarios. Their work was published in Physical Review Letters on March 12th.

Prof. YU Sixia, Associate Researcher SUN Liangliang and ZHOU Xiang from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS), in collaboration with Prof. XU Zhenpeng from Anhui University (AHU) and Armin Tavakoli from Lund University, proposed an approach to quantify entanglement using the standard entanglement witness procedure under three common experimental scenarios. Their work was published in Physical Review Letters on March 12th.

Prof. YU Sixia, Associate Researcher SUN Liangliang and ZHOU Xiang from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS), in collaboration with Prof. XU Zhenpeng from Anhui University (AHU) and Armin Tavakoli from Lund University, proposed an approach to quantify entanglement using the standard entanglement witness procedure under three common experimental scenarios. Their work was published in Physical Review Letters.

In a significant milestone for quantum communication technology, an experiment has demonstrated how networks can be leveraged to combat disruptive ‘noise’ in quantum communications. The international effort led by researchers from Griffith University’s Centre for Quantum Dynamics highlights the potential of quantum networks in revolutionising communication technologies on a quantum level.

Qunnect, a leader in quantum-secure networking technology, today announced that GothamQ, its quantum network utilizing existing commercial fiber optic cable, surpassed previous performance metrics in enabling the distribution of polarization-based quantum entanglement while delivering exceptionally high rates of preservation and fidelity. This technical achievement signifies the viability of Qunnect's quantum networking components to perform entanglement-based protocols over prolonged durations in real-world environments.