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What if time were reversed? Physicists show how time could flow backward on a quantum scale
Researchers have developed a way to flip time to move backward in a quantum system. This level of control could lead to bizarre real-world applications
Theoretical physicists have figured out how to reverse the arrow of time in a quantum system.
The arrow of time marches forward. Eggs don’t uncrack; milk doesn’t unspill. But now new research has found a way that this arrow could be reversed in a quantum system, flip-flopping events as if time were flowing backward.
The findings are currently theoretical but could be tested experimentally, says Luis Pedro García-Pintos, a physicist at Los Alamos National Laboratory and first author of the new study, published February 19 in the journal Physical Review X.
