Speeding Up State Preparation with Dynamic Quantum Circuits

Explore a technical talk that delves into accelerating Matrix Product States (MPS) preparation using dynamic quantum circuits. Learn how combining unitary evolution with non-unitary resources can achieve significant speed improvements in quantum state preparation, particularly relevant for condensed matter physics, quantum chemistry, and quantum machine learning applications. Discover a novel approach that utilizes unitary gates, mid-circuit measurements, classical feedforward, and state symmetries to create a deterministic, constant-depth protocol - something impossible with purely unitary resources. Examine experimental results from IBM Quantum processors demonstrating the superior performance of this hybrid approach compared to traditional unitary methods. Understand how this framework unifies the constant-depth preparation of various short-range and long-range entangled MPS, from practical resource states to those with exotic symmetries. Gain insights into the potential applications of dynamic circuits on near-term devices and explore a depth-reduction strategy leveraging non-unitary resources and tensor network representations.