4 papers
Near-Term Fermionic Simulation with Subspace Noise Tailored Quantum Error Mitigation
Miha PapiÄ, Manuel G. Algaba, Emiliano Godinez-Ramirez +4
Quantum error mitigation (QEM) has emerged as a powerful tool for the extraction of useful quantum information from quantum devices. Here, we introduce the Subspace Noise Tailoring…
Noise-Robust Estimation of Quantum Observables in Noisy Hardware
Amin Hosseinkhani, Fedor Å imkovic, Alessio Calzona +6
Error mitigation is essential for extracting reliable results from quantum computations performed on noisy intermediate-scale quantum hardware. Here we introduce Noise-Robust Estim…
A Riemannian Approach to the Lindbladian Dynamics of a Locally Purified Tensor Network
Emiliano Godinez-Ramirez, Richard Milbradt, Christian B. Mendl
Tensor networks offer a valuable framework for implementing Lindbladian dynamics in many-body open quantum systems with nearest-neighbor couplings. In particular, a tensor network…
Spectral Densities, Structured Noise and Ensemble Averaging within Open Quantum Dynamics
Yannick Marcel Holtkamp, Emiliano Godinez-Ramirez, Ulrich Kleinekathöfer
Although recent advances in simulating open quantum systems have lead to significant progress, the applicability of numerically exact methods is still restricted to rather small sy…