Theoretical physicists have long discussed the possibility of “time mirrors,” where signals reverse direction in time. A team led by Dr. Hussein Moussa has now confirmed that these mysterious events exist, achieving a successful test in a lab setting.
Researchers used an engineered metamaterial to control electromagnetic wave behavior and introduced a sudden jump that reversed the direction of incoming signals. The outcome was a time-reversed copy of the original wave, appearing just as predicted but never before seen with clarity.
The team’s achievement signals a leap for people studying wave manipulation, proving that energy hurdles can be overcome when conditions are precisely controlled. This discovery could lead to new possibilities for data transmission and sensor design, as well as exploring time boundaries in photonic devices.
Physicists worldwide are eager to probe the limits of these time mirrors and see whether larger-scale applications might emerge. Experiments will follow to push frequencies higher or adapt the technique to different wave types. The study’s findings were published in Nature Physics.
Source: https://www.earth.com/news/physicists-confirm-the-incredible-existence-of-time-mirrors