The Capacities of Quantum Information

量子资源可以极大地增强多方执行量子信息处理（QIP）任务的能力。一个很好的例子是纠缠，这是一种量子力学现象，其中两个或多个空间分离的系统的可观察物理特性以一种没有经典模拟的方式相关。 在量子信息科学中，纠缠是实现量子隐形传态等QIP任务的关键资源，在量子通信、量子计算和量子密码等新兴技术中发挥着重要作用。

Quantum resources can dramatically enhance the capabilities of several parties to perform quantum information processing (QIP) tasks. An excellent example is entanglement, a quantum mechanical phenomenon in which observable physical properties of two or more spatially separated systems are correlated in a manner that has no classical analog. In quantum information science entanglement is a key resource for many QIP tasks, such as the experimentally realized quantum teleportation, and plays an important role in the emerging technologies of quantum communication, quantum computation and quantum cryptography.