Recent content by LLSM

Thank you for your explanations. The whole subject is much more clear to me now.

Thank you for the answer which I find very helpful (I was unaware of how gates are actually implemented). I gather that somehow (although may be not in a literal sense) there are physical devices that can be configured (even on the fly) to act as different gates as needed. Is there a reference...

Hi! I have studied Grover's algorithm for quantum search and I just want to make sure that I understood it correctly: to make a number k of calls to the oracle one needs to have k physical copies of the gate producing the oracle. In quantum circuits there are no loops, hence a physical gate...

This is related to classical Hamiltonian mechanics. There is something wrong in the following argument but I cannot pinpoint where exactly the pitfall is: Consider an arbitrary (smooth) Hamiltonian (let us assume conservative) and 2n phase space coordinates (q,p). The Hamiltonian flow gives...

The free energy has two types of components, one without Levi-Civita pseudotensor (normal parity) and another with the epsilon tensor (abnormal parity). In Euclidean field theory the normal parity component is always real, and the abnormal parity component is imaginary (see e.g., L...