enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Qubit - Wikipedia

    en.wikipedia.org/wiki/Qubit

    The so-called T 1 lifetime and T 2 dephasing time are a time to characterize the physical implementation and represent their sensitivity to noise. A higher time does not necessarily mean that one or the other qubit is better suited for quantum computing because gate times and fidelities need to be considered, too.

  3. One-way quantum computer - Wikipedia

    en.wikipedia.org/wiki/One-way_quantum_computer

    The purpose of quantum computing focuses on building an information theory with the features of quantum mechanics: instead of encoding a binary unit of information (), which can be switched to 1 or 0, a quantum binary unit of information (qubit) can simultaneously turn to be 0 and 1 at the same time, thanks to the phenomenon called superposition.

  4. Cubit - Wikipedia

    en.wikipedia.org/wiki/Cubit

    [17] [18] This puts the handbreadth at roughly 9 cm (3 + 12 in), and 6 handbreadths (1 cubit) at 54 cm (21 + 12 in). Epiphanius of Salamis, in his treatise On Weights and Measures, describes how it was customary, in his day, to take the measurement of the biblical cubit: "The cubit is a measure, but it is taken from the measure of the ...

  5. Quantum computing - Wikipedia

    en.wikipedia.org/wiki/Quantum_computing

    For many years, the fields of quantum mechanics and computer science formed distinct academic communities. [1] Modern quantum theory developed in the 1920s to explain perplexing physical phenomena observed at atomic scales, [2] [3] and digital computers emerged in the following decades to replace human computers for tedious calculations. [4]

  6. Quantum register - Wikipedia

    en.wikipedia.org/wiki/Quantum_register

    [3] The number of dimensions of the Hilbert spaces depends on what kind of quantum systems the register is composed of. Qubits are 2-dimensional complex spaces ( C 2 {\displaystyle \mathbb {C} ^{2}} ), while qutrits are 3-dimensional complex spaces ( C 3 {\displaystyle \mathbb {C} ^{3}} ), etc.

  7. Physical and logical qubits - Wikipedia

    en.wikipedia.org/wiki/Physical_and_logical_qubits

    [1] [2] A logical qubit is a physical or abstract qubit that performs as specified in a quantum algorithm or quantum circuit [3] subject to unitary transformations, has a long enough coherence time to be usable by quantum logic gates (c.f. propagation delay for classical logic gates). [1] [4] [5]

  8. Quantum volume - Wikipedia

    en.wikipedia.org/wiki/Quantum_volume

    [1] [2] [3] IBM defined its Quantum Volume metric [ 4 ] because a classical computer's transistor count and a quantum computer's quantum bit count aren't the same. Qubits decohere with a resulting loss of performance so a few fault tolerant bits are more valuable as a performance measure than a larger number of noisy, error-prone qubits.

  9. Deferred measurement principle - Wikipedia

    en.wikipedia.org/wiki/Deferred_measurement_principle

    The classical bits control if the 1-qubit X and Z gates are executed, allowing teleportation. [ 1 ] By moving the measurement to the end, the 2-qubit controlled -X and -Z gates need to be applied, which requires both qubits to be near (i.e. at a distance where 2-qubit quantum effects can be controlled), and thus limits the distance of the ...