Many-body Hierarchy of Dissipative Timescales in a Quantum Computer
We show that current noisy quantum computers are ideal platforms for the
simulation of quantum many-body dynamics in generic open systems. We
demonstrate this using the IBM Quantum Computer as an experimental platform for
confirming the theoretical prediction from [Phys. Rev. Lett.124, 100604 (2020)]
of an emergent hierarchy of relaxation timescales of many-body observables
involving different numbers of qubits. Using different protocols, we leverage
the intrinsic dissipation of the machine responsible for gate errors, to
implement a quantum simulation of generic (i.e. structureless) local
dissipative interactions.
Oscar Emil Sommer Francesco Piazza David J. Luitz