Quantum computing could be the next big thing in tech after artificial intelligence (AI). If you want ideas about which stocks to buy now and hold for the long haul, here are two companies where quantum computing could eventually move the needle.

The company said in a blog post that the new chip "paves the way to a useful, large-scale quantum computer," and Alphabet noted that Willow was made in the company's state-of-the-art fabrication facility in Santa Barbara, California, which is one of only a handful in the world.

While investors are still getting used to the artificial intelligence (AI) era, the market is intrigued by the next technological evolution, quantum computing. Many emerging pure-play quantum computing stocks,