The physical concept of quantum entanglement is brought to the biological domain. We simulate the cooperation of two insects by hypothesizing that they share a large number of quantum entangled spin-1/2 particles. Each of them makes measurements on these particles to decide whether to execute certain actions. In the first example, two ants must push a pebble, which may be too heavy for one ant. In the second example, two distant butterflies must find each other. In both examples the individuals make odour-guided random choices of possible directions, followed by a quantum decision whether to push/fly or to wait. With quantum entanglement the two ants can push the pebble up to twice as far as independent ants, and the two butterflies may need as little as half of the flight path of independent butterflies to find each other.
QNN-VRCS: A Quantum Neural Network for Vehicle Road Cooperation Systems
Hassan II University of Casablanca(哈桑二世卡萨布兰卡大学);NYUAD Research Institute(NYUAD研究院);Bikash’s Quantum (OPC) Pvt. Ltd.(Bikash量子(OPC)私人有限公司);Hamad Bin Khalifa University, Qatar Foundation(哈马德·本·哈利法大学,卡塔尔基金会);South Valley University(南谷大学)
Enhancing Sum Capacity via Quantum and No-Signaling Cooperation Between Transmitters
Information & Electronics Research Institute, Korea Advanced Institute of Science and Technology (KAIST)(韩国科学技术院信息与电子研究所);School of Electrical Engineering, KAIST(韩国科学技术院电气工程学院)
Controlled and combined remote implementations of partially unknown quantum operations of multiqubits using GHZ states
我们提出并证明了利用GHZ态的部分未知量子操作的受控和组合远程实现协议[An Min Wang:PRA,\textbf{74},032317(2006)].详细描述了单量子比特、单控制器和双控制器情况下的协议。然后,我们将协议扩展到多个控制器和两个控制器的多量子比特的情况。由于我们的协议必须要求控制器的启动和授权或两个控制器一起工作和合作,量子操作的受控和组合的远程实现肯定可以提高远程量子信息处理的安全性,并有可能有更多的应用。此外,我们的协议与两个代理是有助于最大限度地达到量子操作的远程实现的功率在理论上,因为不同的代理可能有不同的操作资源和不同的操作权限在实践中。
Entirely nonlocal quantum magic without entanglement
Yau Mathematical Sciences Center, Tsinghua University(清华大学丘成桐数学科学中心);Beijing Key Laboratory of Fault-Tolerant Quantum Computing, Beijing Academy of Quantum Information Sciences(北京容错量子计算北京市重点实验室,北京量子信息科学研究院)
Demonstrating multipartite entanglement of single-particle W states: linear optical schemes
我们提出了两种利用非理想光探测器的线性光学方案,证明了只含一个光子的W型N体纠缠态的不可分离性。首先,我们证明了可以使用Nha和Kim [Phys. Rev. A 74,012317(2006)]提出的方法检测从N个光学模式中选择的任意两个模式的成对纠缠,从而表明N方之间完全不可分离。特别是,这个计划被发现是成功的任何非零量子效率的光电探测器。其次,我们考虑了一个利用线性光学的无辅助模式的量子隐形传态网络。在贝尔测量中,通过选择合适的分束器透射率,可以优化条件隐形传态。具体来说,我们确定的条件下,最大保真度大于经典界2/3是只有在与其他各方合作。我们还调查的情况下,开-关光电探测器,不能区分探测到的光子的数量。