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Related Concept Videos

Toroids01:27

Toroids

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A toroid is a closely wound donut-shaped coil constructed using a single  conducting wire. In general, it is assumed that a toriod consists of  multiple circular loops perpendicular to its axis.
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Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
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NMR-active nuclei have energy levels called 'spin states' that are associated with the orientations of their nuclear magnetic moments. In the absence of a magnetic field, the nuclear magnetic moments are randomly oriented, and the spin states are degenerate. When an external magnetic field is applied, the spin states have only 2 + 1 orientations available to them. A proton with = ½ has two available orientations. Similarly, for a quadrupolar nucleus with a nuclear spin value of one, the...
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A stationary charge creates and interacts with the electric field, while a moving charge creates a magnetic field.
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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
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Toroidal qubits: naturally-decoupled quiet artificial atoms.

Alexandre M Zagoskin1,2,3, Arkadi Chipouline4, Evgeni Il'ichev5

  • 1Physics Department, Loughborough University, Loughborough LE11 3TU, United Kingdom.

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|November 27, 2015
PubMed
Summary

We designed a superconducting flux qubit naturally protected from environmental noise. Its unique toroidal interaction with electromagnetic fields suppresses low-frequency perturbations, enhancing quantum computation reliability.

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Area of Science:

  • Quantum computing
  • Superconducting circuits
  • Quantum information science

Background:

  • Quantum computations require high qubit protection from environmental noise.
  • Perturbations can disrupt qubit states and limit computational accuracy.

Purpose of the Study:

  • To propose a novel superconducting flux qubit design.
  • To achieve natural protection from ambient noise for qubits.

Main Methods:

  • Design of a superconducting flux qubit.
  • Utilizing toroidal moment interaction with electromagnetic fields.
  • Analyzing qubit-field interaction suppression at low frequencies.

Main Results:

  • The proposed qubit design is naturally decoupled from ambient noise.
  • The qubit interacts with the electromagnetic field via its toroidal moment.
  • This interaction is suppressed at low frequencies, offering enhanced protection.

Conclusions:

  • The novel qubit design offers inherent noise resilience.
  • This advancement is crucial for improving the reliability of quantum computations.
  • The toroidal interaction mechanism presents a new avenue for qubit protection.