Regge Calculus: Discretizing Curved Spacetime

Regge calculus is a method in theoretical physics that approximates curved spacetime by using a lattice of flat, geometric elements.

Causal Dynamical Triangulations: Building Spacetime from Quantum Lego Bricks

Causal Dynamical Triangulations (CDT) is a theoretical approach to quantum gravity that models the geometry of spacetime using simple, discrete

Loop Quantum Gravity: A Discrete Fabric of Spacetime

Loop quantum gravity (LQG) is a leading approach to quantum gravity that attempts to reconcile general relativity with quantum mechanics

Quantum Gravity: Bridging the Gap Between the Very Small and the Very Large

Quantum gravity is a field of theoretical physics that seeks to unify quantum mechanics and general relativity into a single,

Holographic Universe: A 3D Reality from 2D Information

The holographic universe theory proposes that everything we perceive in our three-dimensional (3D) reality—including space and time—might actually be a

Time Crystals: Matter in Motion Without Energy Loss

Time crystals are a novel and exotic phase of matter in which the system’s structure repeats not only in space,

Alcubierre Drive: A Warp Concept for Faster-Than-Light Travel

The Alcubierre drive is a speculative concept proposed in 1994 by physicist Miguel Alcubierre, based on the equations of general

Closed Timelike Curves: Theoretical Loops in Time

Closed timelike curves (CTCs) are peculiar solutions to Einstein’s field equations in general relativity that allow for time travel—at least

Einstein–Rosen Bridges: The Original Wormhole Idea

Einstein–Rosen bridges are the earliest theoretical models of wormholes, proposed in 1935 by Albert Einstein and Nathan Rosen. They attempted

Wormholes: Hypothetical Shortcuts Through Spacetime

Wormholes are theoretical tunnels in spacetime that could connect two distant regions—either within the same universe or possibly between different