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Related Concept Videos

Divergence and Curl of Magnetic Field01:26

Divergence and Curl of Magnetic Field

The magnetic field due to a volume current distribution given by the Biot–Savart Law can be expressed as follows:
Induced Electric Dipoles01:28

Induced Electric Dipoles

A permanent electric dipole orients itself along an external electric field. This rotation can be quantified by defining the potential energy because the external torque does work in rotating it. Then, the potential energy is minimum at the parallel configuration and maximum at the antiparallel configuration. While the former is a stable equilibrium, the latter is an unstable equilibrium.
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
Magnetic Field Due To A Thin Straight Wire01:27

Magnetic Field Due To A Thin Straight Wire

Consider an infinitely long straight wire carrying a current I. The magnetic field at point P at a distance a from the origin can be calculated using the Biot-Savart law.
Divergence and Curl of Electric Field01:25

Divergence and Curl of Electric Field

The divergence of a vector is a measure of how much the vector spreads out (diverges) from a point. For example, an electric field vector diverges from the positive charge and converges at the negative charge. The divergence of an electric field is derived using Gauss's law and is equal to the charge density divided by the permittivity of space. Mathematically, it is expressed as
Magnetic Field Due to Two Straight Wires01:18

Magnetic Field Due to Two Straight Wires

Consider two parallel straight wires carrying a current of 10 A and 20 A in the same direction and separated by a distance of 20 cm. Calculate the magnetic field at a point "P2", midway between the wires. Also, evaluate the magnetic field when the direction of the current is reversed in the second wire.
Electric Dipoles and Dipole Moment01:30

Electric Dipoles and Dipole Moment

Consider two charges of equal magnitude but opposite signs. If they cannot be separated by an external electric field, the system is called a permanent dipole. For example, the water molecule is a dipole, making it a good solvent.
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Related Experiment Video

Updated: Jul 8, 2026

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

Superconducting Berry Curvature Dipole.

Oles Matsyshyn1, Giovanni Vignale2, Justin C W Song1

  • 1Nanyang Technological University, Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Singapore 637371, Singapore.

Physical Review Letters
|July 7, 2026
PubMed
Summary
This summary is machine-generated.

Researchers discovered a superconducting Berry curvature dipole (BCD) in noncentrosymmetric superconductors. This collective phenomenon enables novel nonreciprocal electromagnetic responses and serves as a diagnostic for superconducting gap structures.

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Last Updated: Jul 8, 2026

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Area of Science:

  • Condensed Matter Physics
  • Quantum Materials

Background:

  • Superconductivity and Bloch band Berry curvature are distinct quantum coherent phenomena.
  • Superconductivity involves Cooper pairs, while Berry curvature arises from wave function topology.

Purpose of the Study:

  • To reveal a superconducting Berry curvature dipole (BCD) in noncentrosymmetric superconductors.
  • To investigate the properties and applications of this BCD phenomenon.

Main Methods:

  • Theoretical analysis of quantum coherent phenomena in noncentrosymmetric superconductors.
  • Exploration of BCD proximity effects in hybrid quantum materials.

Main Results:

  • Discovery of a superconducting BCD as a collective phenomenon.
  • Demonstration that BCD is sensitive to the order parameter phase and pairing structure.
  • Observation of BCD-induced nonreciprocity in centrosymmetric metals via proximity effect.
  • Identification of dissipationless supercurrent-induced dynamical Hall conductivity and giant second-order nonlinearity.

Conclusions:

  • Noncentrosymmetric superconductors are a platform for unconventional dissipationless responses.
  • Superconducting BCD offers a novel diagnostic tool for superconducting gap structures.
  • The BCD proximity effect enables nonreciprocity in hybrid quantum materials.