Equation of State and Thermometry of the 2D SU(N) Fermi-Hubbard Model

被引：15

作者：

Pasqualetti, G. ^{[1
,2
,3
]}

Bettermann, O. ^{[1
,2
,3
]}

Oppong, N. Darkwah ^{[1
,2
,3
]}

Ibarra-Garcia-Padilla, E. ^{[4
,5
,6
,7
]}

Dasgupta, S. ^{[4
,5
]}

Scalettar, R. T. ^{[6
]}

Hazzard, K. R. A. ^{[4
,5
]}

Bloch, I. ^{[1
,2
]}

Foelling, S. ^{[1
,2
,3
]}

机构：

[1] Ludwig Maximilians Univ Munchen, Schellingstr 3, D-80799 Munich, Germany

[2] Max Planck Inst Quantum Opt, Hans Kopfermann Str 1, D-85748 Garching, Germany

[3] Munich Ctr Quantum Sci & Technol MCQST, Schellingstr 4, D-80799 Munich, Germany

[4] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA

[5] Rice Univ, Rice Ctr Quantum Mat, Houston, TX 77005 USA

[6] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

[7] San Jose State Univ, Dept Phys & Astron, San Jose, CA 95192 USA

来源：

PHYSICAL REVIEW LETTERS | 2024年 / 132卷 / 08期

基金：

美国国家科学基金会;

关键词：

ANTIFERROMAGNETIC CORRELATIONS; MOTT INSULATOR; SPIN; TRANSITION; ATOMS; GAS; SIMULATION; SYSTEMS; METAL;

D O I：

10.1103/PhysRevLett.132.083401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We characterize the equation of state (EoS) of the SU(N > 2) Fermi -Hubbard Model (FHM) in a twodimensional single -layer square optical lattice. We probe the density and the site occupation probabilities as functions of interaction strength and temperature for N = 3, 4, and 6. Our measurements are used as a benchmark for state-of-the-art numerical methods including determinantal quantum Monte Carlo and numerical linked cluster expansion. By probing the density fluctuations, we compare temperatures determined in a model -independent way by fitting measurements to numerically calculated EoS results, making this a particularly interesting new step in the exploration and characterization of the SU(N) FHM.

引用

页数：8

共 91 条

[1] Interorbital interactions in an SU(2) ⊗ SU(6)-symmetric Fermi-Fermi mixture [J].