Kavli Affiliate: Anna Frebel | Summary:Ultra-faint dwarf galaxies (UFDs, $M_* < 10^5 M_odot$) offer unique insights into early chemical evolution in low-mass systems. However, interpreting their metallicity distribution functions (MDFs) has been challenging due to limited spectroscopic samples, especially beyond the red giant branch. We present metallicities from the Ca II K absorption feature, measured […]
Kavli Affiliate: Michael Crommie | Summary:We directly visualize a two-dimensional anisotropic Wigner crystal and its quantum melting in monolayer 1T-ReSe2 using non-invasive scanning tunnelling microscopy. In crystals with anisotropic effective mass, an electron’s quantum wavefunction becomes elongated along the light-mass direction to reduce kinetic energy. At low electron density, such anisotropic electrons are predicted to […]
Kavli Affiliate: James Analytis| Summary:Control of light polarization and propagation in sub-wavelength architectures is foundational to nanophotonic technologies. A frontier direction is to leverage strong optical spin-orbit interactions to realize polarization-selective light steering, known as the photonic spin Hall effect. In this context, hyperbolic plasmon polaritons (HPPs) are of particular interest as they offer large […]
Kavli Affiliate: Zameel Cader | Authors: Xuewei Qi, Alessandra Granata, Tom Van Agtmael, Sanjay Sinha, Zameel Cader, Hugh S Markus, Stuart M. Allan, Karen Horsburgh and Tao Wang | Summary: Cerebral small vessel disease (cSVD) is a major contributor to stroke and cognitive decline, ultimately leading to vascular dementia (VaD). Genetic factors play a key […]
Kavli Affiliate: Michael Goldberg | Authors: Thomas A Sasani, Michael E Goldberg, Akshay K Avvaru, Thomas J Nicholas, Deborah W Neklason, Egor Dolzhenko, Tom Mokveld, Katherine M Munson, Kendra Hoekzema, Marcelo Ayllon, Eli J Kaufman, David Porubsky, Paul N Valdmanis, Evan E Eichler, Aaron R Quinlan and Harriet Dashnow | Summary: Tandem repeats (TRs) are […]
Kavli Affiliate: Avi Shporer | Summary:We report the discovery and characterisation of the multi-planetary system around TOI-4311, a K dwarf kinematically between the Galactic thick disk and Hercules stream. TOI-4311 hosts an ultra-short-period super-Earth (P$sim$0.99 d, $1.376substack+0.077\-0.080$ R$_oplus$) and a longer period sub-Neptune (P$sim$15 d, $2.47substack+0.12\-0.11$ R$_oplus$) that was first detected in the TESS photometry. […]
Kavli Affiliate: Herre Van Der Zant | Summary:Achieving magnon-photon hybridization in the microwave regime is essential for integrating magnetic excitations with superconducting circuits. While this has been extensively demonstrated in bulk magnetic systems, realizing it in two-dimensional van der Waals materials remains challenging due to their reduced magnetic volume and increased dissipation. Here, magnon-photon hybridization […]