Ian S. Osborne

2 months ago | science.org | Shixin Ma |Léa Meneu |Hongbo Liu |Ian S. Osborne |Michael Funk |Madeleine Seale | +11 more

Topological Optics Viewing topology in higher dimensionsIan S. OsborneArtistic depiction of a four-dimensional regular lattice that forms a quasicrystalline pattern with fivefold symmetry when projected in two dimensions. The symmetry and topology of physical systems are closely related to the symmetries governing the topological properties. Quasicrystals are ordered systems but have no translation or rotational symmetries.

Jan 23, 2025 | science.org | Sacha Vignieri |Sarah Ross |Ian S. Osborne |Di Jiang

Cognition “More” “Food”Sacha VignieriDogs, like Bunny here, may use soundboards deliberately, not just to mimic their owners. PHOTOS: RUTH FREMSON/THE NEW YORK TIMES/REDUXOpen in viewerFor decades, researchers have been exploring the ability of nonhuman animals to learn to communicate in human ways. Although research continues across species, augmented interspecies communication devices (i.e., button soundboards) have proliferated among animal owners, especially those with dogs. Bastos et al.

Jan 23, 2025 | science.org | Ian S. Osborne |Bianca Lopez |Marc S. Lavine |Sarah Ross

Nonlinear Phononics Optically induced chiralityIan S. OsborneArtist’s depiction of optically induced chirality in a crystalChirality is a topological property of a material and is usually fixed when the material is prepared. A material is chiral (or achiral) and remains so for all temperatures and thermodynamics conditions. A right-handed chiral state cannot be easily switched to a left-handed one. Zeng et al.

Dec 19, 2024 | science.org | Michael Funk |Ian S. Osborne |Jake Yeston |Madeleine Seale |Sarah Ross |Di Jiang | +7 more

Optomechanics Motions of the quantum collectiveIan S. OsborneMicro- and nanomechanical oscillators can now be manipulated in the quantum regime. They can be entangled with other degrees of freedom and used for quantum teleportation and quantum storage. To date, these systems have been limited to single or pairs of oscillators. Chegnizadeh et al. now demonstrate scale-up, preparing a collective macroscopic system composed of several individual mechanical oscillators in the quantum ground state.

Sep 20, 2024 | link.aps.org | Ian S. Osborne |Gustavo M. Monteiro |Staten Island |Barry Bradlyn

We examine the hydrostatic stress of electrons strongly confined in a quasi-two-dimensional quantum well in the presence of a strong perpendicular and weak in-plane magnetic field. This introduces anisotropy into the stress tensor which is inconsistent with the notion of the quantum Hall droplet as a simple two-dimensional electron fluid.