Emily Tyhurst
  • Member for 3 years, 10 months
  • Last seen more than a month ago
How does measurement of one qubit affect the others?
17 votes

There are a lot of different ways of looking at qubits, and the state vector formalism is just one of them. In a general linear-algebraic sense a measurement is projection onto a basis. Here I will ...

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If all quantum gates must be unitary, what about measurement?
12 votes

At risk of going off-topic from quantum computing and into physics, I'll answer what I think is a relevant subquestion of this topic, and use it to inform the discussion of unitary gates in quantum ...

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Are there problems in which quantum computers are known to provide an exponential advantage?
12 votes

Not sure if this is strictly what you're looking for; and I don't know that I'd qualify this as "exponential" (I'm also not a computer scientist so my ability to do algorithm analysis is more or less ...

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