arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0912.0906hep-thgr-qcmath-phmath.MP
收藏

Moyal平面上的光谱距离

The spectral distance on the Moyal plane

Eric Cagnache, Francesco D'Andrea, Pierre Martinetti, Jean-Christophe Wallet

摘要:

我们从度量的角度研究了Moyal平面的非对易几何。从基于R ^2上Schwartz函数代数的Moyal变形A的非紧谱三元组出发,我们显式地计算了对应于量子谐振子本征函数的A的纯态之间的Connes谱距离。对于其他纯态,我们提供了一个下界的光谱距离,并表明,最新的并不总是有限的。因此,我们证明了谱三元组[20]不是[5]意义下的谱度量空间。这激发了对谱三元组的截断的研究,基于M_n(C),其中n是任意整数,这是Rieffel意义下的紧量子度量空间。最后,对于n=2,明确计算距离。

英文摘要:

We study the noncommutative geometry of the Moyal plane from a metric point of view. Starting from a non compact spectral triple based on the Moyal deformation A of the algebra of Schwartz functions on R^2, we explicitly compute Connes' spectral distance between the pure states of A corresponding to eigenfunctions of the quantum harmonic oscillator. For other pure states, we provide a lower bound to the spectral distance, and show that the latest is not always finite. As a consequence, we show that the spectral triple [20] is not a spectral metric space in the sense of [5]. This motivates the study of truncations of the spectral triple, based on M_n(C) with arbitrary integer n, which turn out to be compact quantum metric spaces in the sense of Rieffel. Finally the distance is explicitly computed for n=2.

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。

↑