Unverified50% confidenceFactExact time
Grover算法要求量子计算机执行串行量子操作，无法像经典计算那样简单横向扩展并行
1
Sources
50%
Confidence
Long-term
Relevance
7/11/2026
First Seen
Sources
Can Quantum Computers Break 128-bit Symmetric Keys? Analyzing the Real Threat
redditr/programming7/10/2026
Related Claims
UnverifiedAchieving fault-tolerant quantum computing requires encoding one logical qubit using hundreds to thousands of physical qubits through quantum error-correcting codes such as the surface code.69% similarUnverifiedGrover's algorithm was proposed by Lov Grover in 1996 and is a quantum search algorithm capable of finding a target item in an unordered database with O(√N) time complexity.65% similarUnverifiedIndustry estimates suggest that running practically valuable fusion simulations may require millions of high-quality physical qubits, while the most advanced systems today have reached the scale of hundreds of qubits.64% similarUnverifiedQuantum Fourier Transform requires only O(n²) quantum gate operations to process N=2^n amplitudes on a quantum computer, achieving exponential speedup64% similarUnverifiedGoogle的Sycamore处理器在特定采样任务上声称实现量子优势63% similar
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