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arXiv 2308.04488hep-latcond-mat.str-elhep-phphysics.comp-phquant-ph
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(1+1)维哈密顿硬核格点QCD中的强子

Hadrons in (1+1)D Hamiltonian hardcore lattice QCD

Marco Rigobello, Giuseppe Magnifico, Pietro Silvi, Simone Montangero

AI总结:

该研究利用矩阵乘积态研究(1+1)维硬核格点QCD,提出无规范冗余的规范不变张量网络方法,发现临界相与两种相,重建粒子谱,提供最小SU(3)规范理论并再现QCD现象,含带电π介子。

摘要:

我们利用矩阵乘积态研究了(1+1)维具有硬核胶子的双味哈密顿格点QCD,在零密度和有限密度下。我们引入了一种无规范冗余的理论表述,并构建了规范不变的张量网络拟设。我们表明该模型在参数空间的扩展子区域内是临界的,并识别出至少两个不同的相,其中一个包含了连续极限位置。我们在每个相中重建了粒子谱的子集,识别出边缘和体无间隙模式。因此,我们表明所研究的模型提供了一个最小的SU(3)规范理论,同时再现了(3+1)维QCD的已知现象。最值得注意的是,它具有带电π介子。

英文摘要:

We study 2-flavor Hamiltonian lattice QCD in (1+1)D with hardcore gluons, at zero and finite density, by means of matrix product states. We introduce a formulation of the theory where gauge redundancy is absent and construct a gauge invariant tensor network ansatz. We show that the model is critical in an extended subregion of parameter space and identify at least two distinct phases, one of which embeds the continuum limit location. We reconstruct a subset of the particle spectrum in each phase, identifying edge and bulk gapless modes. We thereby show that the studied model provides a minimal SU(3) gauge theory whilst reproducing known phenomena of (3+1)D QCD. Most notably, it features charged pions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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