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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.
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
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 ...
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 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
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 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 ...