Scientists Rewrite 180 Years of Physics With New Light-Magnetism Discovery
Scientists have uncovered a surprising detail about how light interacts with matter. They discovered that the magnetic part of light plays a much stronger role than previously believed. As a result, this insight reshapes a long-standing idea in physics.For nearly 180 years, experts thought the Faraday Effect depended mainly on light’s electric field. However, new research shows that its magnetic field also drives this rotation in a major way.
A Fresh Look at the Faraday Effect
A team from the Hebrew University of Jerusalem led this breakthrough. They found that the magnetic field inside light can twist materials as the light passes through them. This twisting happens in addition to the well-known electric influence.Their work reveals that the magnetic component can create real magnetic torque. Therefore, it plays a direct part in changing the polarization of light. This discovery challenges the traditional explanation first proposed in 1845.
Strong Magnetic ContributionThe researchers used advanced calculations to test their idea. They applied their theory to Terbium Gallium Garnet, a crystal often used to study the Faraday Effect. The results were strikingFor example, the magnetic field of light accounted for around 17% of the rotation in visible light. In addition, it contributed up to 70% of the rotation in the infrared range. These numbers show that the magnetic field of light matters far more than scientists believed.
New Paths for Future Technology
This discovery opens exciting possibilities. It may inspire progress in optics, spintronics, and magnetic data technologies. It could also support future work in spin-based quantum computing.Researchers believe this finding will encourage a fresh look at how light “talks” to materials. Therefore, it may reshape several fields in the years ahead.
