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arXiv 1205.2091cond-mat.str-el
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Luttinger液体在相互作用淬灭后时间演化中的普适性

Luttinger liquid universality in the time evolution after an interaction quench

C. Karrasch, J. Rentrop, D. Schuricht, V. Meden

摘要:

我们提供了强有力的证据表明,一维,金属费米系统的弛豫动力学的两粒子相互作用的突然振幅变化的方面是普遍的Luttinger液体意义上的:领先的长期行为的某些可观的平衡Luttinger液体参数和重整化速度的通用函数描述。我们解析推导出这些功能的Tomonaga-Luttinger模型和验证我们的假设的普遍性,考虑无自旋晶格费米子的密度矩阵重整化群的框架内。

英文摘要:

We provide strong evidence that the relaxation dynamics of one-dimensional, metallic Fermi systems resulting out of an abrupt amplitude change of the two-particle interaction has aspects which are universal in the Luttinger liquid sense: The leading long-time behavior of certain observables is described by universal functions of the equilibrium Luttinger liquid parameter and the renormalized velocity. We analytically derive those functions for the Tomonaga-Luttinger model and verify our hypothesis of universality by considering spinless lattice fermions within the framework of the density matrix renormalization group.

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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