Eighteen months after selling his startup to chipmaker AMD for $665 million , Finnish entrepreneur Peter Sarlin has left his role as CEO of the unit now known as AMD Silo AI. He is now chairman at two new ventures: physical AI lab NestAI , and Qutwo , an AI startup aimed at helping companies prepare for the era of quantum computing. Currently fully funded by Sarlin’s family office, PostScriptum , Qutwo describes itself as “an AI lab for the quantum era.” Rather than waiting for quantum computing to mature, however, it is already working with enterprise customers — including European fashion retailer Zalando, with which it is developing what the two companies call “ lifestyle agents, ” AI tools designed to go beyond product search and proactively suggest products and experiences. Qutwo is built on the premise that AI is hitting an efficiency wall that quantum computing may eventually help solve. But the company is not betting on when that will happen, Sarlin told TechCrunch.…