Vaire's reversible chip recovers more energy than it uses — SkimNews
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- Vaire Computing announced last year a chip breakthrough: a patent-pending resonator recovered more energy than it lost, even after accounting for the power needed to run the component—proof of life for a concept that had existed mostly in theory for over 50 years.
- Hannah Earley, Vaire's 31-year-old cofounder and CTO, designed the novel resonator from scratch after concluding that existing transistors and circuits couldn't make reversible computing practical, describing the component as "a glorified pendulum" that stores recovered energy for later reuse.
- Reversible computing aims to retain intermediate calculation data rather than erasing it, letting circuits run computations backward to recover energy instead of dissipating it as heat—contrasting with conventional chips that Earley likens to a car braking at every intersection.
- Electronic design automation researcher Igor Markov, a former University of Michigan professor, said Vaire's technology is "quite early stage" and that the company will need "a series of increasingly realistic and convincing demonstrations to attract the industry support needed for commercialization."
- Vaire has raised more than $12 million since its 2021 founding by Earley and entrepreneur Rodolfo Rosini, and hired Michael Frank—author of the 1999 PhD thesis on reversible computing that redirected Earley's Cambridge doctoral work—as senior scientist.
- Earley began programming at age 9, enrolled in a PhD program at Cambridge under computational biologist Gos Micklem, and says the next challenge is fitting Vaire's drastically different chip into familiar devices and existing manufacturing systems.
Why it matters: Vaire has raised $12 million and hired reversible computing pioneer Michael Frank, but researcher Igor Markov called the tech "quite early stage" and said commercialization will require "a series of increasingly realistic and convincing demonstrations." The next gating test: whether Earley's novel resonator can be manufactured at scale—a prerequisite for any data center energy-efficiency payoff from the approach.
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