Search results
Results from the WOW.Com Content Network
The general definition of a qubit as the quantum state of a two-level quantum system.In quantum computing, a qubit (/ ˈ k juː b ɪ t /) or quantum bit is a basic unit of quantum information—the quantum version of the classic binary bit physically realized with a two-state device.
The approach of topological qubits, which takes advantage of topological effects in quantum mechanics, has been proposed as needing many fewer or even a single physical qubit per logical qubit. [10]
The number of qubits in the first register, , which determines the accuracy of the approximation, guarantees that =, given the best approximation from the superposition of | was measured [2] (which can be made arbitrarily likely by using extra bits and truncating the output).
In gate-based quantum computing, various sets of quantum logic gates are commonly used to express quantum operations. The following tables list several unitary quantum logic gates, together with their common name, how they are represented, and some of their properties.
Qubits (physical) Release date Quantum volume Alpine Quantum Technologies PINE System [2] Trapped ion: 24 [3] June 7, 2021: 128 [4] Atom Computing Phoenix Neutral atoms in optical lattices: 100 [5] August 10, 2021: Atom Computing N/A Neutral atoms in optical lattices: 35×35 lattice (with 45 vacancies) < 99.5 (2 qubits) [6] 1180 [7] [8] October ...
Book list Book table 1: Unnamed parameter. Main page for sublists that are transcluded elsewhere. Transclusion to declared page will hide summaries. — background: HEX code for row background: HEX code for table header background book_number: Book number (e.g. series numbering sequence) "No." title: Book title "Title" alt_title
First, we have end nodes on which applications are ultimately run. These end nodes are quantum processors of at least one qubit. Some applications of a quantum internet require quantum processors of several qubits as well as a quantum memory at the end nodes. Second, to transport qubits from one node to another, we need communication lines.
Time-bin qubits do not suffer from depolarization or polarization mode-dispersion, making them better suited to fiber optics applications than polarization encoding. Photon loss is easily detectable since the absence of photons does not correspond to an allowed state, making it better suited than a photon-number based encoding.