Toward the real-time evolution of gauge-invariant Z 2 and U ð 1 Þ quantum link models on noisy intermediate-scale quantum hardware with error mitigation
This article benchmark the real-time dynamics of Z 2 and U ð 1 Þ gauge-invariant plaquette models using noisy intermediate-scale quantum (NISQ) hardware, specifically the superconducting-qubit-based quantum IBM Q computers.
Accurate real-time simulation of correlated quantum systems remains challenging for both classical methods and near-term quantum hardware. We introduce operator-projected variational quantum real-time evolution (OVQRTE), which updates a parameterized circuit by enforcing the Ehrenfest equations for a selected set of ob...
Aeishah Ameera Anuar, P. Sriluckshmy, Riccardo Rossi et al.· 1 citation
Understanding real-time flux-tube dynamics in more than one spatial dimension is key to unlocking the non-perturbative physics of confinement, and is now actively pursued by quantum computing and simulation experiments. However, describing such dynamics has proven to be extremely challenging with both experiments and s...
Zeno Bacciconi, M. Frau, L. Tagliacozzo et al.· 1 citation
Quantum Monte Carlo (QMC) methods are among the central numerical tools for studying strongly correlated quantum many-body systems, particularly in higher dimensions. As quantum information has introduced new information-theoretic perspectives and diagnostics into many-body physics, QMC methods have accordingly been ex...
Estimating the properties of quantum states is a fundamental task in both theoretical and experimental quantum physics. While numerous Pauli-based measurement strategies have been proposed, none explicitly exploit prior knowledge of structural features such as symmetry. Here, we introduce a compact measurement scheme t...
Hu Chen, Bu-Jiao Wu, Qian-Xi Zhang et al.· Physical Review Letters· 0 citations
Quantum error mitigation (QEM) is at the very heart of near-term quantum simulations and lattice gauge theories are no exceptions, rather their physical symmetries provide natural consistency checks on noise quantum states. In this work, we exploit the parity and fermion-number symmetries of a gauge theory, the (1+1)-d...
Alexander Tomlinson, Graham Van Goffrier, Bipasha Chakraborty et al.· 0 citations
The results provide a rigorous complexity-theoretic demonstration that non-Abelian Yang--Mills theories can be simulated efficiently on quantum computers, paving the way toward first-principles quantum simulations of non-perturbative QCD dynamics.
Tian-Yin Li, Ying-Ying Li, Xiao-Yang Wang et al.· 1 citation
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