凝聚态物质与光学；量子信息与量子计算；量子力学。
Condensed Matter and Optics; Quantum Information and Computation; Quantum Mechanics.
退相干是现代量子信息与量子计算中普遍存在的本质问题，对于研究它是当今物理界的一个重点和难点。
Decoherence is a universal essential problem in modern quantum information and quantum computation. It is significant and difficult to study this problem in modern physical field.
与量子通信相对应地，量子计算目前也是量子信息科学的重点研究对象。
In contrast to quantum communication, quantum computing is also the focus of quantum information science.
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