量子信息科学是物理学，工程学和计算机科学界的一个交叉学科领域。该领域的主要目标之一是找到利用自然界中的量子力学效应（例如叠加和纠缠）来执行信息处理任务的方法。一方面，该领域着眼于自然界对计算和通信的基本限制，另一方面，它研究了更实际的问题，例如如何克服退相干和构建容错量子计算机，或者如何有效地解决问题。模拟基态和多体系统的动力学。
Quantum Information Science is an interdisciplinary field at the boundary of physics, engineering, and computer science. One of the main goals of this field is finding methods for exploiting the quantum mechanical effects in nature, such as superposition and entanglement, to perform information processing tasks. On the one hand, this field looks at the fundamental limits of nature on computation and communication, and on the other hand, it studies more practical questions, such as how to overcome decoherence and build a fault-tolerant quantum computer, or how to efficiently simulate the ground state and the dynamics of a many-body system.