Fidelity of Quantum States

Fidelity Of Quantum States

In quantum information theory, fidelity is a measure of the "closeness" of two quantum states. It is not a metric on the space of density matrices, but it can be used to define the Bures metric on this space.

Read more about Fidelity Of Quantum States:  Motivation, Definition, Fidelity of Quantum Measurements

Famous quotes containing the words fidelity, quantum and/or states:

    Total loyalty is possible only when fidelity is emptied of all concrete content, from which changes of mind might naturally arise.
    Hannah Arendt (1906–1975)

    The receipt to make a speaker, and an applauded one too, is short and easy.—Take of common sense quantum sufficit, add a little application to the rules and orders of the House, throw obvious thoughts in a new light, and make up the whole with a large quantity of purity, correctness, and elegancy of style.
    Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)

    The admission of the States of Wyoming and Idaho to the Union are events full of interest and congratulation, not only to the people of those States now happily endowed with a full participation in our privileges and responsibilities, but to all our people. Another belt of States stretches from the Atlantic to the Pacific.
    Benjamin Harrison (1833–1901)