Kavli Affiliate: Erin Kara | Summary:1ES 1927+654 is an extreme active galactic nucleus (AGN) that has defied our canonical expectations for how AGN appear across the electromagnetic spectrum and how they vary on short timescales. In 2022, this source began showing a X-ray quasi-periodic oscillation (QPO) at mHz frequencies, along with a newly launched radio […]
Kavli Affiliate: Kent Irwin | Summary:Searches for QCD axions with masses in the neV/$c^2$ mass range are strongly motivated by new physics at the GUT scale and by well-motivated pre-inflationary axion symmetry breaking scales. This parameter space is challenging to probe due to the small axion-photon couplings, which typically require large, high-field magnets with substantial […]
Kavli Affiliate: Oskar Painter | Summary:Erasure qubits are a promising platform for implementing hardware-efficient quantum error correction. Realizing the error-correction advantages of this encoding requires frequent mid-circuit erasure checks that are fast, high-fidelity, and scalable. Here, we realize erasure detection with a hardware-efficient circuit consisting of a single readout resonator dispersively and symmetrically coupled to […]
Kavli Affiliate: Martin Lindquist | Authors: Yu Shen, Won June Cho, Saurabh Joshi, Benjamin Wen, Swarnagouri Naganathanhalli, Maria Beery, Casey R Grubel, Arrun Sivasubramanian, André Forjaz, Mia P Grahn, Lucie Dequiedt, Yichen Huang, Kyu Sang Han, Fan Wu, Brian A Pedro, Laura D Wood, Tiane Chen, Ralph H Hruban, Irina Kusmartseva, Mark A Atkinson, Denis […]
Kavli Affiliate: Claudio Ricci | Summary:We present an analysis of XRISM and NuSTAR data obtained for the nearby low-Eddington active galactic nucleus NGC 7213. Our goal is to examine whether its He-like and H-like iron emission lines can be reproduced by photoionization or collisional ionization processes. Using the broad-band energy coverage of our data (2-60 […]
Kavli Affiliate: Matthew Fisher | Summary:Symmetry-based classification of quantum phases of matter is one of the most foundational organizing principles in physics; however, an analogous framework for mixed, decohered quantum states has only begun to emerge. A central new concept is strong-to-weak spontaneous symmetry breaking (SW-SSB), a sharp transition in mixed quantum states that is […]
Kavli Affiliate: Carlos Bustamante | Summary:Following our recent numerical study [arXiv:2601.16299 (2026)], we investigate vibrational excitation induced by transient optical driving in molecular ensembles strongly coupled to a cavity mode using the field-driven Holstein–Tavis–Cummings model. We analyze how pulsed excitation redistributes energy among electronic, photonic, and vibrational degrees of freedom in molecular polaritons. Vibrational dynamics […]