![]() Recently, it was proposed that the Higgs mode may reveal the superconducting gap symmetry and multiplicity 4, 5, 6, unveil coupled collective modes 7, or explain aspects of light-induced superconductivity 8. Experimental detection of the Higgs mode has also been hampered by its lack of electric and magnetic dipole moments in most superconductors. However, their significance to superconductivity has been more slowly appreciated. ![]() ![]() In superconductors, discussions about the Higgs mode and the Higgs mechanism precede those in high-energy physics 2, 3. Nature Communications volume 11, Article number: 1793 ( 2020)įor field theories with U(1) continuous symmetry and respecting Lorentz invariance or particle-hole symmetry, spontaneous symmetry breaking gives rise to an order parameter with two orthogonal collective modes: the Goldstone mode along the azimuthal direction, and the Higgs mode along the radial direction 1. ![]() Phase-resolved Higgs response in superconducting cuprates ![]()
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