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University of Washington physicist (and science-fiction author) John Cramer is moving forward with his experiment in backward causality, thanks in part to tens of thousands of dollars in contributions sent in by his fans. Although Cramer emphasizes that his lab is looking at “nonlocal quantum communication” rather than backward time travel per se, the gadgetry he’s assembling could settle a controversy surrounding a seemingly faster-than-light effect that Albert Einstein thought was downright spooky.
Boiled down to its basics, the experiment involves splitting laser light into two beams, so that characteristics of one beam are reflected in the other beam as well. That's an example of what physicists call quantum entanglement. Specifically, Cramer has been planning to fiddle with one of the entangled laser beams such that it takes on the property of waves or particles. If one beam behaves like particles, the entangled photons of light in the other beam should behave like particles, too.
www.nbcnews.com
Boiled down to its basics, the experiment involves splitting laser light into two beams, so that characteristics of one beam are reflected in the other beam as well. That's an example of what physicists call quantum entanglement. Specifically, Cramer has been planning to fiddle with one of the entangled laser beams such that it takes on the property of waves or particles. If one beam behaves like particles, the entangled photons of light in the other beam should behave like particles, too.
Backward research goes forward
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