Front Cover: Topological Sound Pumping of Zero‐Dimensional Bound States (Adv. Quantum Technol. 9/2020). Issue 9 (15th September 2020)

• Record Type: Journal Article
• Authors: Gao, Penglin; Christensen, Johan
• Is Part Of: Advanced quantum technologies. Volume 3:Issue 9(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-09-15
• Subjects: Quantum theory -- Periodicals; Quantum computing -- Periodicals; Quantum chemistry -- Periodicals; Quantum electronics -- Periodicals; 537.5
• DOI: 10.1002/qute.202070091
• Languages: English
• ISSNs: 2511-9044

Abstract

Abstract : A Majorana‐like bound state can be engineered in artificial acoustic lattices thanks to a Jackiw–Rossi vortex, which is the analog of a topological superconductor vortex. Such vortex is created by introducing a Kekulé texture to the man‐made lattice of rigid cylinders. In article number 2000065, Penglin Gao and Johan Christensen show how this binding mechanism can be well explained by a topological pumping process comprising adiabatic variations of the cylinder radii, which concentrates strong acoustic energy to the lattice center as shown in the cover image.