Simulating the dynamics of open quantum systems is essential in achieving practical quantum computation and understanding novel nonequilibrium behaviors. However, quantum simulation of a many-body system coupled to an engineered reservoir has yet to be fully explored in present-day experiment platforms.
In this work, scientists have introduced engineered noise into a one-dimensional ten-qubit superconducting quantum processor to emulate a generic many-body open quantum system.
This approach originates from the stochastic unravellings of the master equation.
By measuring the end-to-end correlation, they have identified multiple steady states stemmed from a strong symmetry, which is established on the modified Hamiltonian via Floquet engineering.
Furthermore, they investigated the structure of the steady-state manifold by preparing initial states as a superposition of states within different sectors on a five-qubit chain.
This work provides a manageable and hardware-efficient strategy for the open-system quantum simulation.
npj Quantum Information, Published online: 07 January 2025; doi:10.1038/s41534-025-00958-6
