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  2. Fishing reel - Wikipedia

    en.wikipedia.org/wiki/Fishing_reel

    The Art of Angling, first published in 1651, is the first English language book to cite the use of fishing reels. 'Nottingham' and 'Scarborough' reel designs. The first English book on fishing is "A Treatise of Fishing with an Angle" in 1496 (its spelling respective to the manner of the date is The Treatyse of Fysshynge with an Angle [7] ').

  3. Quark model - Wikipedia

    en.wikipedia.org/wiki/Quark_model

    These quantum numbers are labels identifying the hadrons, and are of two kinds. One set comes from the Poincaré symmetry—J PC, where J, P and C stand for the total angular momentum, P-symmetry, and C-symmetry, respectively. The other set is the flavor quantum numbers such as the isospin, strangeness, charm, and so on. The strong interactions ...

  4. Density matrix - Wikipedia

    en.wikipedia.org/wiki/Density_matrix

    Quantum tomography is a process by which, given a set of data representing the results of quantum measurements, a density matrix consistent with those measurement results is computed. [ 25 ] [ 26 ] When analyzing a system with many electrons, such as an atom or molecule , an imperfect but useful first approximation is to treat the electrons as ...

  5. Fishing rod - Wikipedia

    en.wikipedia.org/wiki/Fishing_rod

    A collection of fishing rods A fly fishing rod Line guides on modern fishing rods Fishing with a fishing rod. A fishing rod or fishing pole is a long, thin rod used by anglers to catch fish by manipulating a line ending in a hook (formerly known as an angle, hence the term "angling").

  6. Quil (instruction set architecture) - Wikipedia

    en.wikipedia.org/wiki/Quil_(instruction_set...

    The language also supports macro-like definitions of possibly parametrized quantum circuits and their expansion, qubit measurement and recording of the outcome in classical memory, synchronization with classical computers with the WAIT instruction which pauses the execution of a Quil program until a classical program has ended its execution ...

  7. Quantum programming - Wikipedia

    en.wikipedia.org/wiki/Quantum_programming

    Quantum lambda calculi are extensions of the classical lambda calculus introduced by Alonzo Church and Stephen Cole Kleene in the 1930s. The purpose of quantum lambda calculi is to extend quantum programming languages with a theory of higher-order functions. The first attempt to define a quantum lambda calculus was made by Philip Maymin in 1996 ...

  8. Quantum contextuality - Wikipedia

    en.wikipedia.org/wiki/Quantum_contextuality

    Quantum contextuality is a feature of the phenomenology of quantum mechanics whereby measurements of quantum observables cannot simply be thought of as revealing pre-existing values. Any attempt to do so in a realistic hidden-variable theory leads to values that are dependent upon the choice of the other (compatible) observables which are ...

  9. Quantum circuit - Wikipedia

    en.wikipedia.org/wiki/Quantum_circuit

    In a quantum circuit, the vectors are used to represent the state of the qubits and different matrices are used to represent the gate that is applied on the qubits. Since linear algebra is a major component of the quantum simulation, Field Programmable Gate Arrays could be used to accelerate the simulation of quantum computing. FPGA is a kind ...