An Osaka Metropolitan University research team proposed a simple model of family unification, which is a 6D SO(20) gauge theory with a single fermion in the spinorial representation. After ...

String Theory. The heterotic string naturally produces SO (32) or E_8 x E_8 gauge symmetry in ten dimensions [4], requiring compactification on a six-dimensional manifold to recover four-dimensional ...

String compactification refers to the process of reducing the ten or eleven dimensions intrinsic to string or M-theory down to the four dimensions of observable spacetime by assuming that the extra ...

In one of the most memorable interviews of my career thus far, I was at my desk, head in my hands, talking on the phone to a physicist about extra dimensions. I was trying to understand what it means ...

We all know we live in three-dimensional space. But what does it mean when people talk about four dimensions? Is it just a bigger kind of space? Is it "space-time," the popular idea which emerged from ...

In 1998, astronomers discovered dark energy. The finding, which transformed our conception of the cosmos, came with a little-known consequence: It threw a wrench into the already daunting task of ...

In this video, we explore the relationship between string theory and quantum field theory (QFT). QFT is a mathematical framework that describes nearly all particles and forces in the universe but ...

Some string theorists predict at least 10 dimensions, most of which humans can’t perceive. | Andriy Onufriyenko/Moment/Getty Images Ask someone to name every ...

Abstract: Keypoint matching is used in a variety of tasks such as specific object recognition and panoramic image generation. Affine-SIFT (ASIFT) enables affine invariant matching by generating many ...