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America's Secretive X-37B Space Plane Will Test a Quantum Alternative to GPS for the US Space Force
The mysterious X-37B space-plane — the U.S. military's orbital test vehicle — "serves partly as a platform for cutting-edge experiments," writes Space.com And "one of these experiments is a potential alternative to GPS that makes use of quantum science as a tool for navigation: a quan...
Using fine-tuned lasers, each atom is split into what's called a superposition state, similar to Schrödinger's cat, so that it simultaneously travels along two paths, which are then recombined. Since the atom behaves like a wave in quantum mechanics, these two paths interfere with each other, creating a pattern similar to overlapping ripples on water. Compared to classical inertial navigation systems, quantum sensors offer orders of magnitude greater sensitivity.
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