Description: Fidelity estimation is the process of determining the fidelity of a quantum state, often used in quantum computing experiments. This concept refers to the measure of how close a quantum state is to another ideal or desired quantum state. Fidelity can be understood as a way to quantify the similarity between two quantum states, which is crucial in the context of quantum computing, where errors and decoherence can significantly affect the performance of algorithms. Fidelity is typically expressed as a value between 0 and 1, where 1 indicates that the states are identical and 0 indicates that they are completely different. This process is fundamental for assessing the quality of quantum states generated in experiments and for optimizing quantum systems, as it allows researchers to identify and correct errors in qubit manipulation. Fidelity estimation also plays an important role in validating quantum algorithms, ensuring that the results obtained are reliable and useful in practical applications. In summary, fidelity estimation is an essential tool in quantum computing, as it provides a metric for evaluating and improving the accuracy of quantum states used in various applications.
