A preprint from University of Belgrade physicists, posted to arXiv, uses a four-dimensional simplex model based on quantum Regge calculus. When only spacelike edge lengths are drawn uniformly, a local ...

ベオグラード大学の物理学者らがarXivで公開したプレプリントは、量子レッジェ計算に基づく四次元単体モデルを用い、空間的な辺長のみを一様抽出する条件下で局所ミンコフスキー計量が85.34%の頻度で生じることを数値的に示した。ただし本研究は力学的作用を省略した玩具モデルであり、時間的辺を導入すると時間2次元の構造が支配的になるなど前提への強い依存が残る。

Future research can include other dynamics, like physical laws, and various shapes, to further test "whether the spacetime signature can ultimately be understood as an emergent property of quantum ...

We study the information geometry of the probability simplex Δₙ through the lens of the Tsallis free energy functional F_β[q] = KL(q ‖ p*) − β H(q), where KL denotes the Kullback-Leibler divergence, H ...

PowerPoint to teach A Level Further Maths Decision/Discrete Maths Option: Simplex Algorithm (Edexcel Tableau). Additional PowerPoints are available for problems involving artificial variables and the ...

Researchers are tackling one of the most fundamental challenges in physics: formulating a consistent theory of quantum gravity. Eugenio Bianchi, Chaosong Chen, and Mauricio Gamonal, all from the ...

Abstract: High penetration of renewable energy generation (REG) presents severe uncertainties for power system operation. It is critical to quantify the accommodation level of REG in the nonlinear ...

The original version of this story appeared in Quanta Magazine. In 1939, upon arriving late to his statistics course at UC Berkeley, George Dantzig—a first-year graduate student—copied two problems ...

Herpes is a common infection caused by herpes simplex viruses. It can cause painful blisters that come and go, usually around the mouth and genitals. Many people who are infected don’t know it. It’s ...

Spinfoam models represent a promising approach to understanding quantum gravity, yet establishing their mathematical consistency remains a significant challenge. Wojciech Kamiński from the University ...