Paper: Quantum localization bounds Trotter errors in digital quantum simulation_拉斯维加斯赌城

Theoretische Physik III
2019-04-12T15:51:51+00:00
Universit?t Augsburg

A fundamental challenge in digital quantum simulation (DQS) is the control of an inherent error, which appears when discretizing the time evolution of a quantum many-body system as a sequence of quantum gates, called Trotterization. Here, we show that quantum localization-by constraining the time evolution through quantum interference-strongly bounds these errors for local observables, leading to an error independent of system size and simulation time.