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Gates in quantum computing 
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#1
Jan1710, 12:03 AM

P: 26

1. The problem statement, all variables and given/known data
I'm trying to show that controllednot gate can not be used to make toffolit gate(controlledcontrolled not gate) 2. Relevant equations 3. The attempt at a solution i'm thinking that controlled not only has +(addition modulo 2) of the inputs, it cant make X and Y for input X,Y hence cannot make function XY+Z but I'm not sure if this is right, and I don't know how else to go about this problem. thanks 


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