Polaronic correlations from optimized ancilla wave functions for the Fermi-Hubbard model
成果类型：
Article
署名作者：
Mueller, Tobias; Thomale, Ronny; Sachdev, Subir; Iqbal, Yasir
署名单位：
University of Wurzburg; University of Zurich; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Madras; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Madras; Harvard University
刊物名称：
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN/ISSBN：
0027-8480
DOI：
10.1073/pnas.2504261122
发表日期：
2025-05-16
关键词：
摘要：
We employ a family of ancilla qubit variational wave functions [Y.-H. Zhang and Sachdev, Phys. Rev. Res. 2, 023172 (2020)] to describe the polaronic correlations the pseudogap metal phase of a hole-doped 2D Fermi-Hubbard model. Comparison to ultracold atom quantum simulator data [J. Koepsell etal., Science 374, 82 (2021)] reveals both qualitative and quantitative agreement with the numerical analysis from half-filling up to 80% hole-doping, capturing the crossover from the polaronic regime to the Fermi liquid observed around 40% doping.
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