Comments on the holographic description of Narain theories

Comments on the holographic description of Narain theories
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对Narain理论全息描述的评述

DOI:
10.1007/jhep10(2021)197
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发表时间:
2021
影响因子:
5.4
通讯作者:
Shapere, Alfred
Shapere, Alfred
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Dymarsky, Anatoly;Shapere, Alfred

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我们讨论了Narain U(1)c× U(1)c共形场论的全息描述,以及它们与传统的弱耦合引力理论在体中的潜在相似性,在这个意义上,有效的IR体描述包括了用附加的光自由度修正的“U(1)引力”。从这幅图出发,我们提出了这样的假设,即在大中心电荷极限下,任何纳拉因理论的态密度都被U(1)引力的态密度限制在下面。这直接意味着主场的谱隙的最大值是ε 1= c/(2πe)。为了测试这个建议的自洽性,我们研究了它的影响,使用手征晶格CFTs和CFTs的基础上的量子稳定子码。首先,我们注意到,该猜想产生了一个新的量子稳定子码的界限,这是与以前已知的界限在文献中兼容。我们接着讨论态密度的方差,为了一致性,它在大c极限下必须小得几乎为零。我们考虑合奏的代码和手征理论,并表明,在这两种情况下的密度方差是指数小的中心电荷。
We discuss the holographic description of Narain U (1) c× U (1) c conformal field theories, and their potential similarity to conventional weakly coupled gravitational theories in the bulk, in the sense that the effective IR bulk description includes “U (1) gravity” amended with additional light degrees of freedom. Starting from this picture, we formulate the hypothesis that in the large central charge limit the density of states of any Narain theory is bounded by below by the density of states of U (1) gravity. This immediately implies that the maximal value of the spectral gap for primary fields is∆ 1= c/(2πe). To test the self-consistency of this proposal, we study its implications using chiral lattice CFTs and CFTs based on quantum stabilizer codes. First we notice that the conjecture yields a new bound on quantum stabilizer codes, which is compatible with previously known bounds in the literature. We proceed to discuss the variance of the density of states, which for consistency must be vanishingly small in the large-c limit. We consider ensembles of code and chiral theories and show that in both cases the density variance is exponentially small in the central charge.
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