Quantum computers may reach practical applications in five years

Julian Kelly, the director of hardware at Google Quantum AI, recently discussed the future of quantum computing. He believes that practical applications for quantum computers may be just five years away. These applications could perform complex calculations that are impossible for current computers. In an interview with CNBC, Kelly emphasized the potential of quantum computers to revolutionize fields like cutting-edge physics. He mentioned that Google's most advanced quantum computer has 105 qubits, but experts suggest that a million or more will be necessary for meaningful use. Quantum computers differ from traditional computers. Traditional computers use bits that are either 0 or 1, while quantum computers use qubits that can represent both at once based on probability. This allows them to access fundamental principles of the universe. Kelly indicated that initial uses of quantum computing might include simulating complex physical systems. He also noted that quantum computers could potentially generate new data for training artificial intelligence, although he described this as speculative. Recently, interest in quantum technology has grown alongside advancements in AI chips from companies like Nvidia. While Nvidia doesn’t produce quantum processors, they recently hosted an event featuring discussions about quantum technology with major players in the field. Nvidia's CEO, Jensen Huang, had previously expressed doubt about the timeline for functional quantum computers. However, he later softened his stance, acknowledging that while challenging, quantum technology holds significant potential for the future.