We show how to simulate a toy model of electrodynamics in 1+1 dimensions and describe several numerical experiments. The toy model is much simpler than ordinary electrodynamics, but shares many of the same physical features. For example, there are analogs to the electric and magnetic fields, and these fields generate forces between charged particles and support freely propagating radiation. Unl...

We introduce Weinberg’s idea of asymptotic safety and pave the way towards an asymptotically safe chiral Yukawa system with a U(NL)L⊗U(1)R symmetry in a leading-order derivative expansion using nonperturbative functional RG equations. As a toy model sharing important features with the standard model we explicitely discuss NL = 10 for which we find a non-Gaußian fixed point and compute its criti...

We consider the relation between SYK-like models and vector models by studying a toy model where a tensor field is coupled with a vector field. By integrating out the tensor field, the toy model reduces to the Gross-Neveu model in 1 dimension. On the other hand, a certain perturbation can be turned on and the toy model flows to an SYK-like model at low energy. A chaotic-nonchaotic phase transit...

Regarding generality, the paper does not apply to the two examples mentioned, coins and a toy (Fig. 2 therein) by lack of the conformal contact that the theory demands (Fig. 1 therein): a coin by its raised images and generally rough edges, and the toy by its concave support bowl (Fig. 2 of the paper). One can roll almost any disk, including the toy and a coin, on a variety of nominally flat su...

Groups of guinea pigs comprising 7 animals in each group were exposed to 10, 50 or 100 exposures to fire-crackers or 10, 50 or 100 exposures to toy cap pistol shots. An additional group of 7 animals comprised the control material. The exposures were performed with 15-s intervals at 0.25 m distance for the toy cap pistol shots and at 0.8 m for the fire-crackers. The peak sound level at the ear w...

Indoor localization is challenging in terms of both the accuracy and possible using scenarios. In this paper, we introduce the design and implementation of a toy car localization and navigation system, which demonstrates that a projected light based localization technique allows multiple devices to know and exchange their fine-grained location information in an indoor environment. The projected...