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  2. High fidelity - Wikipedia

    en.wikipedia.org/wiki/High_fidelity

    High fidelity (often shortened to Hi-Fi or HiFi) is the high-quality reproduction of sound. It is popular with audiophiles and home audio enthusiasts. Ideally, high-fidelity equipment has inaudible noise and distortion , and a flat (neutral, uncolored) frequency response within the human hearing range .

  3. Fidelity of quantum states - Wikipedia

    en.wikipedia.org/wiki/Fidelity_of_quantum_states

    Fidelity of quantum states. In quantum mechanics, notably in quantum information theory, fidelity is a measure of the "closeness" of two quantum states. It expresses the probability that one state will pass a test to identify as the other. The fidelity is not a metric on the space of density matrices, but it can be used to define the Bures ...

  4. F&G - Wikipedia

    en.wikipedia.org/wiki/F&G

    F&G Annuities & Life, Inc. is a public company headquartered in Des Moines, Iowa. It primarily provides annuities, life insurance, and pension buyout services. The company was founded in 1959. Known as Fidelity & Guaranty Life until a 2019 rebrand, [3] the company has been a subsidiary of Fidelity National Financial, a previously unrelated ...

  5. Fidelity (art and symbolism) - Wikipedia

    en.wikipedia.org/wiki/Fidelity_(art_and_symbolism)

    Fidelity when personified in Western art stands for the secular aspect of Faith, or the trust that exists between a master and servant, or in family relationships. Fidelity is often represented as a woman, shown holding a golden seal and a key, but may also be represented by a dog. Fidelity may be shown alone, or may be accompanied by a dog, a ...

  6. Fidelity bond - Wikipedia

    en.wikipedia.org/wiki/Fidelity_bond

    Fidelity bond. A fidelity bond or fidelity guarantee is a form of insurance protection that covers policyholders for losses that they incur as a result of fraudulent acts by specified individuals. It usually insures a business for losses caused by the dishonest acts of its employees. While called bonds, these obligations to protect an employer ...

  7. Actors' Fidelity League - Wikipedia

    en.wikipedia.org/wiki/Actors'_Fidelity_League

    The Actors' Fidelity League (Fidelity) was a short-lived unaffiliated American craft union [1] representing actors who worked in live theatrical performances. It split off from Actors' Equity Association (Equity) in August 1919 when the parent organization affiliated with the American Federation of Labor (AFL) and adopted strike tactics.

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