Building ‘time-traveling’ quantum sensors | Mirage News

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The idea of ​​time travel has been dazzling science fiction fans for years. Science tells us that traveling into the future is technically possible, at least if you’re willing to travel at close to the speed of light, but going back in time is impossible.

What if scientists could harness the power of quantum physics to uncover data about complex systems that occurred in the past? New research from Washington University in St. Louis suggests that this hypothesis may not be so far-fetched.

In an article published in Physical Review Letters, Kater MurchCharles M. Hohenberg Professor of Physics in Arts & Sciences and Chair of the University’s Department of Physics Quantum Leap Centerand colleagues demonstrate a new type of quantum sensor that exploits quantum entanglement to create time-traveling detectors.

In this video, Kater Murch of WashU describes how her team exploited “hindsight,” a property of entangled quantum sensors, to create detectors that can travel through time. Her related study is published in Physical Review Letters.

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