Modeling dynamics of entangled physical systems with superconducting quantum computer

Understand

We implement several quantum algorithms in real five-qubit superconducting quantum processor IBMqx4 to perform quantum computation of the dynamics of spin-1/2 particles interacting directly and indirectly through the boson field.

• Particularly, we focus on effects arising due to the presence of entanglement in the initial state of the system.
• The dynamics is implemented in a digital way using Trotter expansion of evolution operator.
• Our results demonstrate that dynamics in our modeling based on real device is governed by quantum interference effects being highly sensitive to phase parameters of the initial state.