Schrödinger's Chat
A pun on Schrödinger's Cat. It has more to do with Quantum Mechanics in general than just Quantum Computing, but I wanted to throw it out there.
Is a dilution refrigerator the only way to cool superconducting qubits down to 10 millikelvin? If not, what other methods are there, and why is dilution refrigeration the primary method?
Over the last 2.5 years, we’ve identified a few problematic classes of questions that tend to get asked on our sites. Many of these are documented in our standard set of close reasons: exact duplicate, off-topic, subjective and argumentative, not a real question, and too localized.
However, as we launched the great Super User experiment, a new, previously unknown class of problematic questions emerged — the shopping recommendation.
That is, on Super User we began encountering questions like: …
Quantum pairs (if that is the right name) is 2 atoms that are paired together and when you stop one from spinning the other also stops with the same spin. Can you use these pairs to have FTL communication between 2 computers?
Similar to the question Could a Turing Machine simulate a quantum computer?: given a 'classical' algorithm, is it always possible to formulate an equivalent algorithm which can be performed on a quantum computer? If yes, is there some kind of procedure we can follow for this? The resulting algori...
The title pretty much sums it up – How are quantum computers different from normal ones? i.e. Do all quantum computers need to be supercooled, whereas normal computers just need fans? and similar.
I am aware that these things are documented on other sites too (e.g. Wikipedia), but I think these ...
At a very basic level, reading or measuring a qubit forces it to be in one state or the other, so operation of a QC to gain a result collapses the state into one of many possibilities.
But as the state of each qubit is probabilistic, surely this means the result can actually be any of those poss...
by Turing Machine, I mean this as a theoretical concept, not as a physical machine, in case it's not clear.
I know that a TM can theoretically simulate anything, but I don't know whether it could simulate something as fundamentally different as a quantum-based computer. Are there any attempts t...
Thrilled to see this site start.
Could we please have math notation (mathjax) enabled? Quantum gates, states and many other things are represented by matrices and vectors. So We'll need it.
