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  2. 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 ...

  3. Personal unblocking key - Wikipedia

    en.wikipedia.org/wiki/Personal_unblocking_key

    A personal unblocking key ( PUK ), sometimes called personal unblocking code ( PUC ), is used in SIM cards to reset a personal identification number (PIN) that has been lost or forgotten. Most mobile phones offer the feature of PIN protection. After switching on the phone, if the PIN security function is active, the user is required to enter a ...

  4. Microsoft - Wikipedia

    en.wikipedia.org/wiki/Microsoft

    Microsoft. Microsoft Corporation is an American multinational corporation and technology company headquartered in Redmond, Washington. [2] Microsoft's best-known software products are the Windows line of operating systems, the Microsoft 365 suite of productivity applications, and the Edge web browser.

  5. Market Identifier Code - Wikipedia

    en.wikipedia.org/wiki/Market_Identifier_Code

    corporate. personal. public. v. t. e. The Market Identifier Code ( MIC) ( ISO 10383) is a unique identification code used to identify securities trading exchanges, regulated and non-regulated trading markets. The MIC is a four alphanumeric character code, and is defined in ISO 10383 [1] by the International Organization for Standardization (ISO ...

  6. VAT identification number - Wikipedia

    en.wikipedia.org/wiki/VAT_identification_number

    VAT identification number. A value-added tax identification number or VAT identification number ( VATIN [1]) is an identifier used in many countries, including the countries of the European Union, for value-added tax purposes. In the EU, a VAT identification number can be verified online at the EU's official VIES [2] website.

  7. H&R Block - Wikipedia

    en.wikipedia.org/wiki/H&R_Block

    H&R Block, Inc., or H&R Block, is an American tax preparation company operating in Canada, the United States, and Australia. The company was founded in 1955 by brothers Henry W. Bloch and Richard Bloch . As of 2018, H&R Block operates approximately 12,000 retail tax offices staffed by tax professionals worldwide.

  8. George W. Bush - Wikipedia

    en.wikipedia.org/wiki/George_W._Bush

    e. George Walker Bush (born July 6, 1946) is an American politician and businessman who served as the 43rd president of the United States from 2001 to 2009. A member of the Republican Party, he previously served as the 46th governor of Texas from 1995 to 2000.

  9. AOL Mail for Verizon Customers - AOL Help

    help.aol.com/products/aol-mail-verizon

    Learn how to update your settings to make AOL Mail look and feel exactly how you need it. Netscape Internet Service (ISP) ยท Jan 30, 2024. Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.