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# Ben's Planet Posts

One way of solving a differential equation is to discretize it on a lattice and approximate the derivatives using the finite difference method. The method derives directly from the mathematical definition of a derivative. Say you start for example with…

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The central limit theorem is a cornerstone of statistics, stating that the sum of many random variables will be approximately normally distributed, and thereby explaining the ubiquity of the normal distribution. An example is the normal approximation of the Binomial…

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Usually, we are not only interested in the outcomes of a random experiment or combinations thereof, but also the implications they might have – which might be quantified by a value and brings us to the concept of a random…

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Originally introduced by A. M. Lyapunov in 1892, Lyapunov exponents are a tool to quantify the characteristic sensitive dependence on initial conditions for chaotic dynamical systems. Let $\vec{x}(0)$ be the initial state of a chaotic dynamical system in phase space…

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Notes on a talk by Guiseppe Carleo given at the SCQM 2020 winter school. Describing a single spin-$\frac{1}{2}$ particle can be achieved by the simple ansatz $$| \psi \rangle = C_{\uparrow} |\uparrow\rangle + C_{\downarrow} | \downarrow\rangle$$ and the normalization condition…

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