相对熵与挠率耦合
Relative Entropy and Torsion Coupling
AI总结:
本文在爱因斯坦-嘉当引力微扰框架下,通过要求全息CFT中相对熵的正性,约束了轴流-挠率耦合、费米子质量及状态方程。
摘要:
我们评估了在全息共形场论中,由具有非零真空期望值的费米子算符形变后,其紫外不动点附近球状区域上的相对熵。此处所考虑的相对熵的正性,是由量子纠缠在重整化群流下预期单调递减所蕴含的。计算是在四维渐近反德西特空间中爱因斯坦-嘉当引力的微扰框架内进行的,并假设了轴矢量费米子流与挠率之间存在标准的双线性耦合。通过要求相对熵的正性,我们的结果对轴流-挠率耦合、费米子质量以及状态方程施加了约束。
英文摘要:
We evaluate the relative entropy on a ball region near the UV fixed point of a holographic conformal field theory deformed by a fermionic operator of nonzero vacuum expectation value. The positivity of the relative entropy considered here is implied by the expected monotonicity of decrease of quantum entanglement under RG flow. The calculations are done in the perturbative framework of Einstein-Cartan gravity in four-dimensional asymptotic anti-de Sitter space with a postulated standard bilinear coupling between axial fermion current and torsion. By requiring positivity of relative entropy, our result yields a constraint on axial current-torsion coupling, fermion mass and equation of state.
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。