Presently, how much information can a quantum computer store, in how many qubits? What restrictions are there and how does it vary across realizations (efficiency of data storage, ease of reading and writing, etc)?
I'm interested in the model of quantum computation by magic state injection, that is where we have access to the Clifford gates, a cheap supply of ancilla qubits in the computational basis, and a few expensive-to-distill magic states (usually those that implement S, T gates). I've found that the ...
Because "pixel" isn't a unit of measurement: it's an object. So, just like a wall that's 30 bricks wide by 10 bricks tall contains 300 bricks (not bricks-squared), an image that's 30 pixels wide by 10 pixels tall contains 300 pixels (not pixels-squared).
In March 2010, we rebalanced our reputation system to favor answers.
While we value good questions (and asking a great question is absolutely an art), we want to explicitly encourage people to provide the best possible answers. Without people interested in providing good answers, the questions are moot. We know that answers have more intrinsic value than questions, and the reputation balance should reflect that.
The question asker already enjoys a substantial benefit beyond reputation gain from upvotes on their question — namely, they get great answers to their question! Thus, the asker shouldn’t need as much reputation gain. …
