  Quantum scrambling measured by out-of-time-ordered correlator (OTOC) has an
important role in understanding the physics of black holes and evaluating
quantum chaos. It is known that Rydberg atom has been a general interest due to
its extremely favourable properties for building a quantum simulator. Fast and
efficient quantum simulators can be developed by studying quantum scrambling in
related systems. Here we present a general quantum circuit to theoretically
implement an interferometric protocol which is a technique proposed to measure
OTOC functions. We apply this circuit to measure OTOC and hence the quantum
scrambling in a simulation of two spin Ising spin model for Rydberg atom. We
apply this method to both initial product and entangled states to compare the
scrambling of quantum information in both cases. Finally we discuss other
constructions where this technique can be applied.
