Classical computers will never be able to match the speed and power of quantum computers from "summary" of Quantum Supremacy by Michio Kaku
In the world of computation, a new era is dawning with the advent of quantum computers. These machines, utilizing the principles of quantum mechanics, possess the potential to outperform classical computers in terms of speed and power. The reason behind this lies in the fundamental differences between the two types of computers. Classical computers operate on bits, which are binary units of information represented as either 0 or 1. These bits form the basis of all computations in classical systems, allowing for a sequential processing of data. On the other hand, quantum computers utilize quantum bits, or qubits, which can exist in multiple states at once due to the phenomenon of superposition. This means that quantum computers have the ability to process vast amounts of information simultaneously, leading to exponential gains in computational power. Furthermore, quantum computers also leverage the concept of entanglement, where qubits can be correlated with each other regardless of the distance between them. This enables quantum computers to perform complex calculations with a level of parallelism that is unattainable for classical systems. As a result, quantum computers have the potential to solve problems that are currently beyond the reach of classical computers, such as cryptography, optimization, and simulation. Despite the immense promise of quantum computers, there are still challenges to overcome before they can reach their full potential. One of the major obstacles is decoherence, where the fragile quantum states of qubits are easily disrupted by external factors. Scientists are actively working to develop error-correction techniques and fault-tolerant systems to mitigate this issue and realize the true power of quantum computing.- The concept of quantum supremacy posits that classical computers will never be able to match the speed and power of quantum computers. With their ability to harness the principles of quantum mechanics, quantum computers have the potential to revolutionize the field of computation and usher in a new era of unprecedented computational capabilities.
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