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Bidirectional holographic codes form a new class of lossless tensor networks that probe the properties of the sub-AdS scale

Tensor networks provide toy models which explicitly realize many puzzling features of AdS/CFT correspondence, and are sometimes treated as the lossy descriptions of the skeleton (in the AdS scale) of the space geometry along with the low energy physics attached on.

This paper on Bidirectional Holographic Codes (BHC) aim to provide the lossless descriptions, which not only encapsulate all the previously realized properties in the large scale, giving us an understanding of the emergence of the classical geometry, but also provide the possibilities to probe the properties in the sub-AdS scale.