Stabilizer ground states for simulating quantum many-body physics: theory, algorithms, and applications

Jiace Sun1, Lixue Cheng1,2, and Shi-Xin Zhang3

1Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA
2Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong (SAR) 999077, China
3Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

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Abstract

Stabilizer states, which are also known as the Clifford states, have been commonly utilized in quantum information, quantum error correction, and quantum circuit simulation due to their simple mathematical structure. In this work, we apply stabilizer states to tackle quantum many-body ground state problems and introduce the concept of stabilizer ground states. We establish an equivalence formalism for identifying stabilizer ground states of general Pauli Hamiltonians. Moreover, we develop an exact and linear-scaled algorithm to obtain stabilizer ground states of 1D local Hamiltonians and thus free from discrete optimization. This proposed equivalence formalism and linear-scaled algorithm are not only applicable to finite-size systems, but also adaptable to infinite periodic systems. The scalability and efficiency of the algorithms are numerically benchmarked on different Hamiltonians. Finally, we demonstrate that stabilizer ground states are promising tools for not only qualitative understanding of quantum systems, but also cornerstones of more advanced classical or quantum algorithms.

Stabilizer states represent a unique category of quantum states featured by their simple mathematical structure. Compared with most of the quantum states whose descriptions require exponentially scaled classical resources, stabilizer states can be classically represented with polynomial-scaled resources. Due to their classical representability and abilities to capture long-range entanglements, they have been commonly used in quantum information, quantum error corrections, and simulating quantum circuits.

In this work, we expanded the application of stabilizer states to tackle quantum many-body problems, a challenging area due to the exponential growth of the Hilbert space dimension. We introduced the concept of stabilizer ground states and developed both theoretical formalisms and efficient algorithms to find stabilizer ground states of different types of Hamiltonians, including both finite systems and infinite periodic Hamiltonians. We demonstrate that stabilizer ground states are promising tools for not only qualitative understanding of quantum systems, but also cornerstones of more advanced classical or quantum algorithms.

This work offers a fresh perspective on quantum many-body problems, showcasing the broader applicability of stabilizer states by bridging quantum many-body physics with the quantum information toolbox. This work could be fundamental in developing novel tools for studying many-body physics problems.

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[9] Andi Gu, Salvatore F. E. Oliviero, and Lorenzo Leone, "Doped stabilizer states in many-body physics and where to find them", Physical Review A 110 6, 062427 (2024).

[10] Caroline E. P. Robin and Martin J. Savage, "Quantum Complexity and New Directions in Nuclear Physics and High-Energy Physics Phenomenology", arXiv:2604.26376, (2026).

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[12] James W. T. Keeble, Alessandro Lovato, and Caroline E. P. Robin, "Neural Quantum States in Non-Stabilizer Regimes: Benchmarks with Atomic Nuclei", arXiv:2603.28646, (2026).

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The above citations are from Crossref's cited-by service (last updated successfully 2026-08-08 03:36:39) and SAO/NASA ADS (last updated successfully 2026-08-08 03:36:40). The list may be incomplete as not all publishers provide suitable and complete citation data.