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Fidelity is the quality of faithfulness or loyalty. Its original meaning regarded duty in a broader sense than the related concept of fealty . Both derive from the Latin word fidēlis , meaning "faithful or loyal".
The fidelity between two quantum states and , expressed as density matrices, is commonly defined as: [1] [2] (,) = ().The square roots in this expression are well-defined because both and are positive semidefinite matrices, and the square root of a positive semidefinite matrix is defined via the spectral theorem.
Third-party fidelity bonds protect businesses against intentionally wrongful acts committed by people working for them on a contract basis (e.g., consultants or independent contractors). In business partnerships, it is the responsibility of the business working as a contractor or subcontractor to carry third-party fidelity bond coverage, though ...
Fidelity Investments, formerly known as Fidelity Management & Research (FMR), is an American multinational financial services corporation based in Boston, Massachusetts.. Established in 1946, the company is one of the largest asset managers in the world, with $5.8 trillion in assets under management, and $15.0 trillion in assets under administration, as of September 2024
Simulation fidelity is used to describe the accuracy of a simulation and how closely it imitates the real-life counterpart. Fidelity is broadly classified as one of three categories: low, medium, and high. Specific descriptions of fidelity levels are subject to interpretation, but the following generalizations can be made:
A Roth IRA offers flexibility and tax benefits, but also contribution limits and income requirements to consider. Here’s what to know about this retirement account, including how it works and ...
In medieval Europe, an oath of fealty (German: Lehnseid) was a fundamental element of the feudal system in the Holy Roman Empire.It was sworn between two people, the feudal subject or liegeman (vassal) and his feudal superior (liege lord).
A new survey by Fidelity Investments suggests that hitting the old $1 million in assets mark isn't what it used to be. In its third, annual Millionaire Outlook, released Wednesday, Fidelity