SAN FRANCISCO :New Mexico, site of the world's first atomic bomb tests, on Tuesday plans to invest $315 million in a bid to become a leader in another potentially era-defining technology: quantum computing. Quantum computing, which leverages the behavior of matter and energy at the atomic and sub-atomic scale, holds the promise of solving in minutes some problems that would take conventional computers thousands of years. Companies such as Alphabet's Google, Microsoft and IBM, along with dozens