量子阱 Quantum well
（重定向自Multiple quantum well）
量子阱（英语：Quantum well）是指具有离散能量值的势阱。
为了形成量子化，可以把能够在三维空间自由运动的粒子束缚在一个平面区域。当量子阱的厚度达到载流子（电子或空穴）对应物质波的波长相同的数量级时，量子束缚效应就可以发生，造成子能带（energy subband），也就是说载流子具有离散的能量值。
Multiple quantum well
中文百科
英语百科
Quantum well 量子阱
（重定向自Multiple quantum well）
A quantum well is a potential well with only discrete energy values.
One technology to create a quantum well is to confine particles, which were originally free to move in three dimensions, to two dimensions, by forcing them to occupy a planar region. The effects of quantum confinement take place when the quantum well thickness becomes comparable to the de Broglie wavelength of the carriers (generally electrons and holes), leading to energy levels called "energy subbands", i.e., the carriers can only have discrete energy values.