Excitonic insulators – an exotic type of matter with a ground state comprising bound electron–hole pairs – have been made by two independent research...
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An axial Higgs mode has been spotted within the collective quantum excitations of a solid material. Kenneth Burch at Boston College and...
On reflection Diagram showing how some particles are blocked by superfluid vortices by the process of Andreev reflection. (Courtesy: MT Noble et al/Phys. Rev....
