This Thursday, 06.01 at 11.00 am we will have a FH seminar where Dr. Raam Uzdin from the Hebrew University will give a lecture titled "Diagnostics of quantum devices: measuring the unobservable". See the details in the file attached.
Quantum computers promise to do wonders in fields ranging from economics and logistics to
chemistry and physics. Unfortunately, validating the proper functioning of these devices can
be as expensive as solving the original problem on a classical computer. Hence there is dire
need to develop efficient diagnostics tools. We present periodic-driving methods that enable
to measure quantities that are useful for diagnostics of quantum devices. These quantities
include purity, entanglement entropy, state overlap and more. The available methods for
evaluating these quantities are non-scalable and are limited to a few qubit (spins). Our
methods is scalable and can be applied to devices that have already been built but have too
many qubits to be diagnosed in a satisfactory way by other means.