Although quantum nonlocality has attracted a lot of attention recently, there are a lot of open questions in the nonlocality of d-dimensional quantum system, especially in a mixed state.

• 近年来量子非定域性虽然引起了广泛的关注,但是关注的焦点集中在低维纯量子体系,高维量子体系尤其是混合态的非定域性还有很多没有解决的问题。