The stock market roared higher last year, and some of the biggest gainers operate in one specific field: artificial intelligence (AI). The technology promises to revolutionize many industries -- from healthcare to automobiles -- with innovations such as AI-powered medical devices and autonomous driving systems.

Investors looking to buy into a company that will likely play a huge part in quantum computing's future need to look no further than Alphabet ( GOOGL 1.13%) ( GOOG 1.16%). Here are two reasons why it might be the best quantum computing stock to buy right now.

Quantum computing stocks were red-hot recently, but Jensen Huang just offered optimistic investors a reality check.

Last year, investors poured into artificial intelligence (AI) stocks, and the biggest players -- from Nvidia (NASDAQ: NVDA) to Amazon -- helped the general market soar. Quantum computing harnesses the principles of quantum mechanics to solve problems that classical computers can't handle.

International Business Machines (NYSE: IBM) has redefined itself as a cloud and artificial intelligence (AI) company. A part of IBM that may have received less coverage is its role in quantum computing.

Following tech giants such as Amazon (AMZN) and Nvidia (NVDA), enterprise software major SAP (SAP) has also joined the voices making a case for quantum computing. Sounding bullish about the technology,

Alphabet subsidiary Google recently announced two major technical achievements with its Willow quantum computing chip. In response to the news, shares of Rigetti Computing (NASDAQ: RGTI) and D-Wave Quantum (NYSE: QBTS) during the next three weeks advanced 280% and 110%,