Google Quantum AI recently revealed a groundbreaking development: a quantum chip named Willow that promises to redefine computational limits.
Willow reportedly solves problems in under five minutes that would take classical supercomputers 10 septillion years to solve—a period far exceeding the universe's lifespan.
Quantum computing hinges on qubits, units of quantum information that utilize principles like superposition and entanglement. Unlike traditional bits limited to binary states (0 or 1), qubits can simultaneously exist in multiple states.
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However, as more qubits are incorporated, systems risk becoming error-prone due to environmental interference, a problem that Willow tackles effectively.
Willow employs advanced error correction techniques, reducing inaccuracies while scaling up its qubits. The Google Quantum AI lead Hartmut Neven described this as reaching "below threshold", a critical point where computational errors decrease as more qubits are added.
Willow's advancements align with Google's ambition to create a practical quantum computer. Such systems hold promise for diverse applications, from revolutionizing drug discovery to optimizing energy solutions. CEO Sundar Pichai highlighted the chip as a crucial step toward these objectives.
Despite the hype, quantum computing remains in its early stages. The former Google product manager Kevin Rose emphasizes that Willow is far from the millions needed to break blockchain encryption methods.
He posted on X, answering whether Google's Willow could crack Bitcoin
Estimates indicate that compromising Bitcoin's encryption would necessitate a quantum computer with approximately 13 million qubits to achieve decryption within a 24-hour period. In contrast, Google's Willow chip, while a significant advancement, comprises 105 qubits.
To illustrate Willow's capabilities, Google tested it using Random Circuit Sampling, a benchmark that evaluates quantum systems against classical computers. The results indicated its superior performance, but the next hurdle involves demonstrating its utility in solving practical problems that classical systems cannot address.
In a related development, Google's AI project AlphaQubit is making waves in next-gen computing. What groundbreaking potential does AlphaQubit hold? Read the full story.
