HELSINKI, March 30 : IQM Quantum Computers has secured 50 million euros ($57.64 million) in venture financing from funds and accounts managed by BlackRock to accelerate its global growth, the Finnish company told Reuters, ahead of its planned dual listing on the U.S. and Helsinki stock markets. IQM said in February it was aiming to list its shares later this year on the U.S. stock market through a merger with Real Asset Acquisition Corp, a special purpose acquisition company, with an initial