arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.00003cond-mat.quant-gascond-mat.mes-hallcond-mat.str-elquant-ph
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一维格点任意子的玻色连续介质理论

Bosonic continuum theory of one-dimensional lattice anyons

M. Bonkhoff, K. Jägering, S. Eggert, A. Pelster, M. Thorwart, T. Posske

摘要:

超冷气体中任意交换相的任意子存在于一维晶格中。然而,已知的一维连续统理论并不匹配。我们利用相互作用玻色子导出了一维格点任意子的连续极限。该理论保持交换相位周期性完全类似于2D任意子。这提供了实验、格点任意子和连续统理论之间的映射,包括作为特殊情况的自然正则化的昆杜任意子。我们用数值方法估计Luttinger参数作为交换角的函数,以表征理论的远程签名,并预测左和右移动集体激发的不同速度。

英文摘要:

Anyons with arbitrary exchange phases exist on 1D lattices in ultracold gases. Yet, known continuum theories in 1D do not match. We derive the continuum limit of 1D lattice anyons via interacting bosons. The theory maintains the exchange phase periodicity fully analogous to 2D anyons. This provides a mapping between experiments, lattice anyons, and continuum theories, including Kundu anyons with a natural regularization as a special case. We numerically estimate the Luttinger parameter as a function of the exchange angle to characterize long-range signatures of the theory and predict different velocities for left- and right-moving collective excitations.

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