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A computation model in which the computation is described via circuits of various logic gates.

8 votes
1 answer
3k views

What is the decidable language in $P/poly$ but not in $P$?

Except for the undecidable unaries I have no idea if there is anything in the gap between $P/poly$ and $P$
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3 votes
1 answer
305 views

How many inputs does the Hadamard gate have?

Look at the diagram in the middle of page 6-3 here, http://stellar.mit.edu/S/course/6/fa14/6.845/courseMaterial/topics/topic3/lectureNotes/qctlec6/qctlec6.pdf I am confused as to how should one think …
user6818's user avatar
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6 votes
1 answer
323 views

Is there an intuitive proof for the existence of hard functions?

For example he proof there at one point claims with little justification that there are at most $2^{0.92^n}$ circuits of size at most $\frac{2^n}{10n}$. Why? …
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