Recent content by rrtucci

Check out my blog post about weak measurements. It's intended to be a pedagogical introduction to the subject. http://qbnets.wordpress.com/2012/09/14/dull-measurements-aka-weak-measurements/

Sorry I didn't answer sooner but I didn't see your latest post until today. I think what is confusing you is that people often use for the Grover oracle a subroutine (i.e. quantum circuit) from which it is obvious by looking at it what the target state is. For Grover's algorithm to be REALLY...

The "fixed-point" algorithm converges exactly to the target instead of "flying" close to it but not hitting it. It's all explained in the paper

I'll give you an analogy that might help you. Suppose you know a series that converges to a constant pi whose value you don't know a priori. Think of the Grover oracle as a subroutine that gives you only partial information about the series each time you call the subroutine. Your goal is to find...

I've written a blog post that tries to answer this question. http://qbnets.wordpress.com/2010/01/06/grovers-algorithm-for-dummies/"

Can it be used to search an unalphabetized phone book for a phone number, faster than classical? I don't see how, as it requires that you know the answer a priori to construct the quantum circuit. However, it is a useful technique. Note that it consists of a product of sqrt(N) identical...