Zhang, XiujuanXiao, MengCheng, YingLu, Ming-HuiChristensen, Johan2019-02-282019-02-282018-12-21Zhang, X., Xiao, M., Cheng, Y., Lu, M-H, Christensen, J. (2018). Topological sound. Communications Physics, 1:972399-3650http://hdl.handle.net/10016/28147Recently, we witnessed a tremendous effort to conquer the realm of acoustics as a possible playground to test with topologically protected sound wave propagation. In this article, we review the latest efforts to explore with sound waves topological states of quantum matter in two- and three-dimensional systems where we discuss how spin and valley degrees of freedom appear as highly novel ingredients to tailor the flow of sound in the form of one-way edge modes and defect-immune protected acoustic waves. Both from a theoretical stand point and based on contemporary experimental verifications, we summarize the latest advancements of the flourishing research frontier on topological sound.13application/pdfeng© The Author(s) 2018Atribución 3.0 Españaresearch articleFísicahttps://doi.org/10.1038/s42005-018-0094-4open access1Communications PhysicsAR/0000022818