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arXiv 2602.05941hep-lathep-phquant-ph
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双底四夸克束缚态和共振态的量子模拟

Quantum Simulation of Bound and Resonant Doubly-Bottom Tetraquark

Ayanendu Dutta

AI总结:

该研究利用量子模拟首次探索双底四夸克态的束缚和共振特性,通过有效四夸克哈密顿量和变分量子求解器,验证了量子模拟在研究奇异多夸克态中的可行性。

摘要:

我们首次在一种受QCD启发的 chiral夸克模型中,利用量子模拟研究了束缚态和共振态的双底四夸克态。一个有效的四夸克哈密顿量被映射到一个16个量子比特的寄存器上,编码颜色、自旋和空间自由度,并包含介子-介子和二夸克-反二夸克配置,具有完整的颜色基。使用变分量子特征求解器,我们在低能S波段中识别出束缚态和共振态。深度束缚态仅出现在标量I(J^P)=0(1^+)通道中,由主导的色单态介子-介子成分和非可忽略的隐藏色贡献组成。所得的质量和结合能与经典chiral夸克模型预测一致,确立了量子模拟作为研究超出传统方法范围的奇异多夸克态的可行框架。

英文摘要:

We present the first quantum-simulation study of bound and resonant doubly-bottom tetraquark states within a QCD-inspired chiral quark model. An effective four-quark Hamiltonian is mapped onto a 16-qubit register, encoding color, spin, and spatial degrees of freedom, and incorporating both meson-meson and diquark-antidiquark configurations with complete color bases. Using a variational quantum eigensolver, we identify bound and resonance states in the low-lying $S$-wave sector. Deeply bound states are found exclusively in the isoscalar $I(J^{P})=0(1^{+})$ channel, dominated by color-singlet meson-meson components with non-negligible hidden-color contributions. The resulting masses and binding energies are consistent with classical chiral quark model predictions, establishing quantum simulation as a viable framework for studying exotic multiquark states beyond the reach of conventional methods.

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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