Tootfinder

#NowPlaying some rip-roaring raw, fast wake up music -- the fantastic new 7" 'Mignon' by Jean Mignon. Straight outta NYC, baby
https://jeanmignon.bandcamp.com/album/mignon-7

This https://arxiv.org/abs/2503.11052 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qu…

Preparing magnonic non-Gaussian states by adding a single magnon onto Gaussian states
Quantum magnonics based on YIG spheres provides a new arena for observing macroscopic quantum states. Here we propose to prepare two kinds of non-Gaussian magnonic states by adding a single magnon onto two Gaussian states, namely, coherent and thermal states. We adopt an optomagnonic system of a YIG sphere and use fast optical pulses to weakly activate the magnon-induced Stokes scattering. Conditioned on the detection of a polarized single photon, a single magnon can be added onto an initial Ga…

On the maximum number of edges of outer k-planar graphs
Maximilian Pfister
https://arxiv.org/abs/2505.24490 https://arxiv.org/pdf/250…

On the maximum number of edges of outer k-planar graphs
We study the maximum number of straight-line segments connecting $n$ points in convex position in the plane, so that each segment intersects at most $k$ others. This question can also be framed as the maximum number of edges of an outer $k$-planar graph on $n$ vertices. We outline several approaches to tackle the problem with the best approach yielding an upper bound of $(\sqrt{2}+\varepsilon)\sqrt{k}n$ edges (with $\varepsilon \rightarrow 0$ for sufficiently large $k$). We further investigate …

Bring Back Racist Mascots or New York’s Education Funding Gets It | The Nation
https://www.thenation.com/article/society/linda-mcmahon-trump-massapequa-chiefs/

Macroscopic entanglement of three magnon modes in three cavities via optical parametric amplifier
Ying Zhou, Guo-Qiang Zhang
https://arxiv.org/abs/2506.01721

Macroscopic entanglement of three magnon modes in three cavities via optical parametric amplifier
We propose a scheme to generate bipartite and tripartite entanglements of three magnon modes in a three-cavity system using a nonlinear optical parametric amplifier (OPA). The three magnon modes in three YIG spheres are respectively placed inside three cavities near the maximum magnetic fields of the cavities and coupled to cavity modes via linear magnetic dipole interaction. Additionally, linear coupling interaction exists between two cavities. Using experimentally feasible parameters, we demo…

A 0.51-Approximation of Maximum Matching in Sublinear $n^{1.5}$ Time
Sepideh Mahabadi, Mohammad Roghani, Jakub Tarnawski
https://arxiv.org/abs/2506.01669 h…

A 0.51-Approximation of Maximum Matching in Sublinear $n^{1.5}$ Time
We study the problem of estimating the size of a maximum matching in sublinear time. The problem has been studied extensively in the literature and various algorithms and lower bounds are known for it. Our result is a $0.5109$-approximation algorithm with a running time of $\tilde{O}(n\sqrt{n})$. All previous algorithms either provide only a marginal improvement (e.g., $2^{-280}$) over the $0.5$-approximation that arises from estimating a \emph{maximal} matching, or have a running time that i…

Joint space-time modelling for upper daily maximum and minimum temperature record-breaking
Jorge Castillo-Mateo (University of Zaragoza), Zeus Gracia-Tabuenca (University of Zaragoza), Jes\'us As\'in (University of Zaragoza), Ana C. Cebri\'an (University of Zaragoza), Alan E. Gelfand (Duke University)
https://arxiv.o…

Joint space-time modelling for upper daily maximum and minimum temperature record-breaking
Record-breaking temperature events are now frequently in the news, proffered as evidence of climate change, and often bring significant economic and human impacts. Our previous work undertook the first substantial spatial modelling investigation of temperature record-breaking across years for any given day within the year, employing a dataset consisting of over sixty years of daily maximum temperatures across peninsular Spain. That dataset also supplies daily minimum temperatures (which, in fac…

Texas Pushes Redistricting Into an Era of 'Maximum Warfare' (New York Times)
https://www.nytimes.com/2025/08/02/us/politics/texas-redistricting-democrats-republicans-midterms.html
http://www.memeorandum.com/250802/p50#a250802p50

Maximum entropy principle for quantum processes
Siddhartha Das, Ujjwal Sen
https://arxiv.org/abs/2506.24079 https://arxiv.org/pdf/250…

Maximum entropy principle for quantum processes
The maximum entropy principle states that the maximum entropy among all quantum states with a fixed mean energy is achieved only by the thermal state of given mean energy. In this notes, we prove the maximum entropy principle for quantum processes -- the entropy of a quantum channel with fixed mean energy is maximum if and only if the channel is absolutely thermalizing channel with the fixed output thermal state of that mean energy. This allows for an alternate approach to describe emergence of…

Towards the classification of maximum scattered linear sets of $\mathrm{PG}(1,q^5)$
Stefano Lia, Giovanni Longobardi, Corrado Zanella
https://arxiv.org/abs/2507.23409 https://…

Towards the classification of maximum scattered linear sets of $\mathrm{PG}(1,q^5)$
Every maximum scattered linear set in $\mathrm{PG}(1,q^5)$ is the projection of an $\mathbb{F}_q$-subgeometry $Σ$ of $\mathrm{PG}(4,q^5)$ from a plane $Γ$ external to the secant variety to $Σ$. The pair $(Γ,Σ)$ will be called a projecting configuration for the linear set. The projecting configurations for the only known maximum scattered linear sets in $\mathrm{PG}(1,q^5)$, namely those of pseudoregulus and LP type, have been characterized in the literature by B. Csajbók, C. Zanella in 20…