内容: 纠错在量子信息领域起着至关重要的作用。报告以一种典型的纠错码——LDPC码——为例,介绍纠错的基本原理,包括校验矩阵的构造、译码算法以及FPGA硬件实现等。然后,重点讨论连续变量量子密钥分发系统中数据协...
内容: Entanglement and superposition are fundamental properties of quantum-mechanical states, with no classical counterparts. It is well-established that elementary particles, such as electrons and p...
内容: Quantum spin liquid states have been intensively studied over the past three decades for spin Hamiltonians on the square lattice with short-range interactions which preserve global spin rotatio...
内容: GaSb基半导体激光器凭借材料体系独特的窄带隙和天然的晶格匹配的优势,是2–4 μm中红外波段激光技术研究的前沿热点。锑化物半导体激光器体积小、效率高、电驱动直接发光,在环境工业气体检测、生物医疗、自由...
内容: 近年来,里德堡原子光镊阵列实验取得了迅速进展,其规模可达几百至几千个量子比特,是实现量子计算的重要平台。其中,碱土金属原子提供了更好的相干性、控制性和可扩展性。例如,其中的可探测擦除误差极大地降...
内容: Trapped-ion quantum computers provide a pristine one-dimensional spin system, featuring high isolation from the environment, high-fidelity measurement and preparation of individual spins, and f...