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arXiv 1111.3634cond-mat.str-elquant-ph
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大系统实空间秩和粒子纠缠谱的计算

Evaluation of ranks of real space and particle entanglement spectra for large systems

Ivan D. Rodriguez, Steven H. Simon, J. K. Slingerland

摘要:

本文提出了一种由实空间波函数计算多粒子系统的粒子纠缠谱(PES)和实空间纠缠谱(RSES)中对称扇区维数的方法。我们首先注意到,纠缠谱中的这些秩等于波函数空间的维数,其中粒子数是固定的。这也产生PES和RSES中的多重性相等。我们的技术允许更大的系统比以前可行的数值计算。对于较小的系统,我们可以找到近似的纠缠能量以及多重性。我们说明的方法与结果上的RSES和PES多重性整数量子霍尔态,劳克林和Jain复合费米子状态和摩尔-里德状态填充$ν=5/2$,系统大小高达70个粒子。

英文摘要:

We devise a way to calculate the dimensions of symmetry sectors appearing in the Particle Entanglement Spectrum (PES) and Real Space Entanglement Spectrum (RSES) of multi-particle systems from their real space wave functions. We first note that these ranks in the entanglement spectra equal the dimensions of spaces of wave functions with a number of particles fixed. This also yields equality of the multiplicities in the PES and the RSES. Our technique allows numerical calculations for much larger systems than were previously feasible. For somewhat smaller systems, we can find approximate entanglement energies as well as multiplicities. We illustrate the method with results on the RSES and PES multiplicities for integer quantum Hall states, Laughlin and Jain composite fermion states and for the Moore-Read state at filling $ν=5/2$, for system sizes up to 70 particles.

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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