• Thumbnail for Flux qubit
    specifically in superconducting quantum computing, flux qubits (also known as persistent current qubits) are micrometer sized loops of superconducting metal...
    16 KB (2,244 words) - 17:52, 4 December 2024
  • phase qubits allow the most of Cooper pairs to tunnel through the junction, followed by flux qubits, and charge qubits allow the fewest. The phase qubit possesses...
    80 KB (8,883 words) - 05:08, 25 May 2025
  • operate as a quantum bit, or qubit. The phase qubit is closely related, yet distinct from, the flux qubit and the charge qubit, which are also quantum bits...
    15 KB (2,335 words) - 14:35, 10 December 2024
  • Thumbnail for Qubit
    In quantum computing, a qubit (/ˈkjuːbɪt/) or quantum bit is a basic unit of quantum information—the quantum version of the classic binary bit physically...
    42 KB (4,916 words) - 09:59, 5 June 2025
  • Thumbnail for Transmon
    Transmon (redirect from Transmon qubit)
    superconducting quantum computing, a transmon is a type of superconducting charge qubit designed to have reduced sensitivity to charge noise. The transmon was developed...
    15 KB (1,553 words) - 22:57, 17 May 2025
  • Thumbnail for D-Wave Systems
    to 128 pair-wise coupled superconducting flux qubits. The 128-qubit processor was superseded by a 512-qubit processor in 2013. The processor is designed...
    41 KB (3,882 words) - 05:06, 3 June 2025
  • In quantum computing, a qubit is a unit of information analogous to a bit (binary digit) in classical computing, but it is affected by quantum mechanical...
    16 KB (1,712 words) - 08:14, 5 May 2025
  • logical qubit from any arbitrary single qubit error. In this code, 5 physical qubits are used to encode the logical qubit. With X {\displaystyle X} and Z {\displaystyle...
    10 KB (1,262 words) - 01:24, 25 May 2025
  • Thumbnail for Charge qubit
    In quantum computing, a charge qubit (also known as Cooper-pair box) is a qubit whose basis states are charge states (i.e. states which represent the presence...
    11 KB (1,461 words) - 08:53, 5 November 2024
  • Thumbnail for Trapped-ion quantum computer
    applied to induce coupling between the qubit states (for single qubit operations) or coupling between the internal qubit states and the external motional states...
    31 KB (3,589 words) - 14:07, 24 May 2025
  • Thumbnail for Topological quantum computer
    Chetan Nayak proposed a quantum Hall device that would realize a topological qubit. In 2005 Vladimir J. Goldman, Fernando E. Camino, and Wei Zhou claimed to...
    24 KB (2,979 words) - 22:17, 5 June 2025
  • Thumbnail for Quantum computing
    states. When measuring a qubit, the result is a probabilistic output of a classical bit. If a quantum computer manipulates the qubit in a particular way,...
    113 KB (12,431 words) - 10:15, 3 June 2025
  • The spin qubit quantum computer is a quantum computer based on controlling the spin of charge carriers (electrons and electron holes) in semiconductor...
    11 KB (1,333 words) - 15:47, 25 May 2025
  • Thumbnail for Yasunobu Nakamura
    worked with Irinel Chiorescu, Kees Harmans, and Mooij to create the first flux qubit. In 2003, he was named one of MIT Technology Review's top innovators under...
    19 KB (1,874 words) - 03:33, 28 April 2025
  • the states of the qubits. Also, after Bob has received the qubits, we know that Eve cannot be in possession of a copy of the qubits sent to Bob, by the...
    8 KB (1,098 words) - 16:07, 21 May 2025
  • quantum devices. Some of these proposals involve using superconducting qubits, trapped ions, liquid and solid state nuclear magnetic resonance, or optical...
    14 KB (1,819 words) - 11:14, 23 March 2025
  • examples for qubits used in circuit QED are so called transmon qubits (more charge noise insensitive compared to the Cooper-pair box) and flux qubits (whose...
    11 KB (1,607 words) - 10:19, 18 March 2025
  • In quantum information, the one clean qubit model of computation is performed an n {\displaystyle n} qubit system with one pure state and n − 1 {\displaystyle...
    7 KB (1,004 words) - 14:15, 3 April 2025
  • Thumbnail for Quantum logic gate
    quantum gate) is a basic quantum circuit operating on a small number of qubits. Quantum logic gates are the building blocks of quantum circuits, like classical...
    76 KB (10,347 words) - 15:41, 25 May 2025
  • information. An example of quantum information is the general dynamics of a qubit. An example of classical information is a text document transmitted over...
    28 KB (4,449 words) - 03:13, 22 February 2025
  • constant. We begin with the two-qubit state | 0 ⟩ | 1 ⟩ {\displaystyle |0\rangle |1\rangle } and apply a Hadamard gate to each qubit. This yields 1 2 ( | 0 ⟩...
    12 KB (2,191 words) - 22:19, 13 March 2025
  • use the controlled NOT gate and the Walsh–Hadamard gate to entangle two qubits without violating the no-cloning theorem as no well-defined state may be...
    16 KB (2,330 words) - 18:59, 28 November 2024
  • Thumbnail for Timeline of quantum computing and communication
    method for synchronizing the properties of multiple coupled CJJ rf-SQUID flux qubits with a small spread of device parameters due to fabrication variations...
    235 KB (22,862 words) - 22:45, 27 May 2025
  • physical qubit numbers do not reflect the performance levels of the processor. This is instead achieved through the number of logical qubits or benchmarking...
    42 KB (1,892 words) - 21:42, 6 June 2025
  • } qubit[1] cin; qubit[4] a; qubit[4] b; qubit[1] cout; bit[5] ans; uint[4] a_in = 1; // a = 0001 uint[4] b_in = 15; // b = 1111 // initialize qubits reset...
    5 KB (524 words) - 16:13, 28 December 2024
  • Thumbnail for Quantum circuit
    initializations of qubits to known values, and possibly other actions. The minimum set of actions that a circuit needs to be able to perform on the qubits to enable...
    24 KB (3,343 words) - 18:11, 15 December 2024
  • Thumbnail for Swap test
    \rangle )} The measurement gate on the first qubit ensures that it's 0 with a probability of P ( First qubit = 0 ) = 1 2 ( ⟨ ϕ | ⟨ ψ | + ⟨ ψ | ⟨ ϕ | ) 1...
    7 KB (1,053 words) - 10:10, 3 June 2025
  • computer is in principle scalable to an arbitrary number of qubits. This is possible because qubits may be individually addressed by electrical means. The...
    5 KB (692 words) - 00:04, 15 May 2025
  • Thumbnail for Quantum neural network
    structure intakes input from one layer of qubits, and passes that input onto another layer of qubits. This layer of qubits evaluates this information and passes...
    21 KB (2,552 words) - 08:32, 9 May 2025
  • Thumbnail for BQP
    such that For all n ∈ N {\displaystyle n\in \mathbb {N} } , Qn takes n qubits as input and outputs 1 bit For all x in L, P r ( Q | x | ( x ) = 1 ) ≥ 2...
    23 KB (3,518 words) - 07:19, 20 June 2024