Find out which of the followings are pure states and mixed states? (a) p1= ¥(100)(00이 + 101) (11||11>(00| + |11>(11|) (b) p2 =D ¥100) (00| + 1101>(01| + ¥|10) (1이| + 1|11>(11| (c) p3 =D 글(100)(0이 + |11><11|) (d) p4=p × I +(1 – p) × p1
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