Strings & branes is a research area within theoretical high-energy physics and quantum gravity that studies extended fundamental objects—one-dimensional strings and higher-dimensional branes—in frameworks such as string theory and M-theory. It analyzes their dynamics, interactions, and spectra using tools from quantum field theory, conformal field theory, and differential geometry, and explores their role in unifying gauge interactions and gravity. The field includes investigation of D-branes, worldsheet and worldvolume theories, dualities (e.g., T- and S-duality), holographic correspondences like AdS/CFT, and the non-perturbative structure of underlying theories, with implications for black hole physics, compactifications, and effective low-energy models.
Modern physics theories highlight the key role of horizons—boundaries beyond which information cannot reach an observer—in a variety of cosmological and gravitational phenomena. Two renowned examples of these boundaries are ...
A researcher at Kyushu University and his collaborators have shown that continuous parameters in quantum gravity may not be freely adjustable "dials" from outside the theory, but rather arise from operators within the theory ...
General Physics
Jun 20, 2026
5
140
If you could take an apple and break it into smaller and smaller parts, you would find molecules, then atoms, followed by subatomic particles like protons and the quarks and gluons that make them up. You might think you hit ...
General Physics
May 14, 2026
7
287
Researchers Shinjiro Takano, Yuya Hamasaki, and Tatsuya Tsukuda of the University of Tokyo have successfully visualized the geometric structure of growing gold nanoclusters in their earliest stages. During this process, they ...
Nanomaterials
Sep 5, 2025
0
75
In physics, there are two great pillars of thought that don't quite fit together. The Standard Model of particle physics describes all known fundamental particles and three forces: electromagnetism, the strong nuclear force, ...
Quantum Physics
Jul 11, 2025
9
243
String theory has long been touted as physicists' best candidate for describing the fundamental nature of the universe, with elementary particles and forces described as vibrations of tiny threads of energy. But in the early ...
General Physics
Jun 9, 2025
1
304
During the latter part of the 20th century, string theory was put forward as a unifying theory of physics foundations. String theory has not, however, fulfilled expectations. That is why we are of the view that the scientific ...
String theory, conceptualized more than 50 years ago as a framework to explain the formation of matter, remains elusive as a "provable" phenomenon. But a team of physicists has now taken a significant step forward in validating ...
General Physics
Dec 17, 2024
0
170
In a continuous pursuit to understand the fundamental laws that govern the universe, researchers have ventured deep into the realms of string theory, loop quantum gravity, and quantum geometry. These advanced theoretical ...
Gravity is one of four fundamental interactions. The most precise description of this force is still provided by Einstein's General Theory of Relativity, published in 1915, an entirely classical theory. This description sets ...
General Physics
May 7, 2024
3
254
