Can we actually test whether the multiverse is real? Not just philosophicallybut scientifically?

Quantum physicist Maria Violaris presents five remarkable experiments, from Schrödinger’s cat to Google’s Willow quantum chip, that put the multiverse to the test. Along the way, she untangles two of the strangest phenomena in all of physics — quantum measurement and entanglement — and reveals how a thought experiment designed to test the multiverse in 1985 accidentally launched today’s billion-dollar quantum computing race.

Maria also shares a puzzling thought experiment of her own that overturns a long-held assumption: that you can never communicate across branches of the multiverse.

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Maria Violaris is a quantum physicist and prize-winning science communicator with a PhD in the foundations of quantum information from the University of Oxford. She works on quantum theory research at Oxford Quantum Circuits, runs a YouTube channel and the Quantum Foundations Podcast, and pioneered the use of quantum thought experiments for quantum computing education through her Quantum Paradoxes series at IBM Quantum.
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