Tag

Arrow Of Time

All articles tagged with #arrow of time

physics2 years ago

Unveiling the Time-Forward Nature of Accelerating Waves and Relativity

Researchers at Tampere University and the University of Eastern Finland have derived a new wave equation that connects wave mechanics with the general theory of relativity and the arrow of time. This breakthrough offers solutions to long-standing physics debates and introduces applications for novel materials. The researchers discovered that the accelerating wave equation only allows solutions where time flows forward, establishing a well-defined direction of time. Additionally, the framework can be used to model continuous waves across interfaces, resolving the Abraham-Minkowski controversy regarding the conservation of momentum in light. The research has implications for everyday optical effects, laboratory tests of relativity, and the understanding of time's preferred direction.

physics2 years ago

Time's Unidirectional Flow Proven by Complex Light Solution

Scientists have discovered a new equation that explains the behavior of light passing through an interface, such as glass or water. The equation, derived in a universe with one space dimension and one time dimension, shows that the speed of light is not always constant and that time can only move forward. This suggests that the arrow of time, which is important in physics, might be an intrinsic property of nature that even light obeys. The equation also resolves the long-standing controversy regarding the momentum of light when it enters a medium, providing a solution that conserves momentum through relativistic effects.