自旋电子学和相干态

自旋电子学是近年来发展起来的一个新研究领域，它研究固体，特别是半导体中的电子自旋相干态，实验发现，自旋相干态能够保持足够长的时间（几百ps量级），因此有可能用来制造一个固态的量子计算机，但是制造实际的自旋电子器件，首先需要解决的是将自旋极化电子（或穴穴）注入半导体中的方法和如何检测它们。

SPINTRONICS AND COHERENT STATES

Spintronics, a new research field developed in recent years, studies electron spin coherent states in solids, especially in semiconductors. Experiments reveal that the spin coherent state can persevere for a rather long time (a few hundred ps), thus it can be used to construct a solid quantum computer. However, the biggest obstacle to making practical spintronic devices so far has been finding a way of injecting spin-polarized electrons or holes into the semiconductor and then detecting them.