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arXiv 1010.0345hep-thhep-ph
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自由Wess-Zumino流体中味凝聚引起的超对称破缺

Flavour-Condensate-induced Breaking of Supersymmetry in Free Wess-Zumino Fluids

Nick E. Mavromatos, Sarben Sarkar, Walter Tarantino

摘要:

最近,我们认为,一个特定的模型弦启发量子时空泡沫(D-泡沫)可能会导致振荡和混合的味道粒子。因此,描述基本动力学的正确基态不是质量本征态真空,而是味真空,这是布拉松和维蒂洛不久前提出的,作为对具有混合的量子场论的描述。在微观层次上,我们的时空泡沫模型中的目标空间超对称性的破缺是由膜缺陷的相对横向运动引起的。受这些结果的启发,我们证明了通过正则(反)对易关系的不等价表示引入的味真空,在低能有效场论水平上提供了超对称破缺的载体;在考虑能量动量张量的味真空期望值的基础上,与理想相对论流体的形式进行比较,发现玻色子扇区贡献为暗能量,而费米子贡献类似于尘埃。这表明一个强大的和新颖的破缺超对称性,一个非微扰的性质,这可能是某些量子引力模型的低能场论的特点。

英文摘要:

Recently we argued that a particular model of string-inspired quantum space-time foam (D-foam) may induce oscillations and mixing among flavoured particles. As a result, rather than the mass-eigenstate vacuum, the correct ground state to describe the underlying dynamics is the flavour vacuum, proposed some time ago by Blasone and Vitiello as a description of quantum field theories with mixing. At the microscopic level, the breaking of target-space supersymmetry is induced in our space-time foam model by the relative transverse motion of brane defects. Motivated by these results, we show that the flavour vacuum, introduced through an inequivalent representation of the canonical (anti-) commutation relations, provides a vehicle for the breaking of supersymmetry (SUSY) at a low-energy effective field theory level; on considering the flavour-vacuum expectation value of the energy-momentum tensor and comparing with the form of a perfect relativistic fluid, it is found that the bosonic sector contributes as dark energy while the fermion contribution is like dust. This indicates a strong and novel breaking of SUSY, of a non-perturbative nature, which may characterize the low energy field theory of certain quantum gravity models.

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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