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arXiv 2603.04522hep-th
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从矩阵量子力学的伴随领域出发的Regge轨迹

Regge trajectories from the adjoint sector of Matrix Quantum Mechanics

Princeton University(普林斯顿大学)

Igor R. Klebanov, Henry W. Lin, Pavel Meshcheriakov

AI总结:

研究大N极限下SU(N)对称Hermitian矩阵的单态领域,发现临界行为与二维弦理论相关。通过解析和数值方法解Marchesini-Onofri方程,发现伴随领域中能量本征值随Δ²~n/α'增长,对应Regge轨迹。

摘要:

我们重新考察SU(N)对称的Hermitian矩阵量子力学在大N极限下的单态领域,该领域已知可通过自由费米子精确求解。当费米能级接近势能最大值时,会出现对应于二维弦理论的临界行为。通过解析和数值方法解Marchesini-Onofri方程,发现伴随领域中能量本征值随Δ²~n/α'增长,对应Regge轨迹。在双生的二维弦理论中,我们将这些状态解释为``短''折叠开放弦的振荡激发。在次主导修正范围内,这种Regge行为本质上是普遍的,并且对所选择的势能无关。略微偏离临界点时,高能激发态过渡为``长弦'',它们延伸至Liouville方向很远。

英文摘要:

We reexamine the large $N$ limit of SU$(N)$ symmetric quantum mechanics of a Hermitian matrix whose singlet sector is well known to be exactly solvable via free fermions. When the Fermi level approaches a maximum of the potential, there is critical behavior corresponding to string theory in two dimensions. We uncover new phenomena in the adjoint sector by solving the Marchesini-Onofri equation both numerically and analytically using semiclassical approximations: at criticality, the spectrum is governed by Regge trajectories with energy eigenvalues growing according to $Δ^2 \sim n/ α'$. In the dual 2D string theory, we interpret these states as oscillatory excitations of a ``short'' folded open string. Up to sub-leading corrections, this Regge behavior is essentially universal and is insensitive to the particular potential we choose to approach criticality. Slightly away from criticality, the highly excited states transition into ``long strings'' that extend far into the Liouville direction.

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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