Abstract We present a new propagation rule for CSS codes. Starting with code $$[\![n,k,d]\!]_q$$ [ n , k d ] q , we construct parameters $$[\![n-2,...

We propose a new class of error-correcting dynamic codes in two and three dimensions that has no explicit connection to any parent subsystem code. The two-dimensional code, which we call the CSS Floquet is geometrically similar honeycomb code by Hastings Haah, also dynamically embeds an instantaneous toric However, unlike it possesses structure its gauge checks do not form Nevertheless, show ou...

Over any discrete memoryless channel, we build codes such that: for one, their block error probabilities and code rates scale like random codes'; two, encoding decoding complexities polar codes'. Quantitatively, constants $\pi,\rho>0$ that $\pi+2\rho<1$, construct a sequence of correction with length $N$ approaching infinity, probability $\exp(-N^\pi)$, rate $N^{-\rho}$ less than the Shannon ca...

$clustertools$ is a Python package for analyzing star cluster simulations. The built around the $StarCluster$ class, which stores all data read in from snapshot of given model cluster. contains functions loading commonly used $N$-body codes, generic snapshots, and software generating initial conditions. All operations within are then designed to act on $StarCluster$. can be unit coordinate tran...