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arXiv 2112.08482hep-lathep-phquant-ph
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$S(1080)$规范理论中量子化PDKEEPAAA:胶球的谱

The spectrum of qubitized QCD: glueballs in a $S(1080)$ gauge theory

Andrei Alexandru, Paulo F. Bedaque, Ruairí Brett, Henry Lamm

摘要:

量子色动力学的量子模拟要求对无限维胶子场进行数字化。用最少数量的量子位来做这件事的方案是可取的。通过离散子群$S(1080)$给出了$SU(3)$规范理论的一种实用数字化方法。使用修改后的行动,允许经典的模拟下降到$a\approx 0.08$调频,低躺胶球光谱计算与多个晶格间距的精度,并外推到连续极限$SU(3)$的结果。这表明这种数字化方案对于QCD的精确量子模拟是足够的。

英文摘要:

Quantum simulations of QCD require digitization of the infinite-dimensional gluon field. Schemes for doing this with the minimum amount of qubits are desirable. We present a practical digitization for $SU(3)$ gauge theories via its discrete subgroup $S(1080)$. Using a modified action that allows classical simulations down to $a\approx 0.08$ fm, the low-lying glueball spectrum is computed with percent-level precision at multiple lattice spacings and shown to extrapolate to the continuum limit $SU(3)$ results. This suggests that this digitization scheme is sufficient for precision quantum simulations of QCD.

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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