By Paresh Dave (Reuters) – Sandbox AQ, which has long-term goals to help clients use quantum computing, announced on Tuesday that it has spun off from Alphabet Inc, raised “nine figures” of funding and signed several clients for its cybersecurity services. With the large funding and former Google Chief Executive Eric Schmidt as its chairman, Sandbox AQ is one of the highest-profile startups pursuing software that would operate at least partially on quantum computers. Though unreliable and costly now, quantum computers could within a decade boost the power of artificial intelligence and other t…