Phenotype bias determines how natural RNA structures occupy the morphospace of all possible shapes
Pole skipping from universal hydrodynamics of (1+1)d QFTs
https://arxiv.org/abs/2512.11024
Abstract:
(1+1)d QFTs provide a tractable arena for understanding the emergence of hydrodynamics in thermal states. At high temperatures this process is governed by the weak breaking of conformal symmetry, and so in this limit many features of the hydrodynamic theory that emerges have been argued to be universal. In this paper we study aspects of the stress tensor thermal two-point function in holographic QFTs of this kind and show that they are consistent with the universal hydrodynamic theory proposed to apply at late times. Specifically, we identify the locations of the `pole skipping' points in momentum space at which there is an intersection of poles and zeroes of this two-point function in holographic QFTs. Although these points lie outside the regime where the hydrodynamic theory is controlled, we show that their locations are consistent with those found by resumming the hydrodynamic derivative expansion near the lightcone. For example, this resummation of the universal hydrodynamics correctly predicts the butterfly velocity of holographic theories.
Predicting phenotype transition probabilities via conditional algorithmic probability approximations
Predicting the topography of fitness landscapes from the structure of genotype-phenotype maps
Quantum oscillations in the zeroth Landau Level and the serpentine Landau fan
Physical Review Letters American Physical Society