Kavli Affiliate: Leon Balents | First 5 Authors: Takamori Park, Mengxing Ye, Leon Balents, , | Summary: We study electronic instabilities of a kagome metal with a Fermi energy close to saddle points at the hexagonal Brillouin zone face centers. Using parquet renormalization group, we determine the leading and subleading instabilities, finding superconducting, charge, orbital […]
Kavli Affiliate: Kerry J. Vahala | First 5 Authors: Chao Xiang, Joel Guo, Warren Jin, Jonathan Peters, Weiqiang Xie | Summary: Silicon nitride (SiN) waveguides with ultra-low optical loss enable integrated photonic applications including low noise, narrow linewidth lasers, chip-scale nonlinear photonics, and microwave photonics. Lasers are key components to SiN photonic integrated circuits (PICs), […]
Kavli Affiliate: Laura Schaefer | First 5 Authors: Maggie A. Thompson, Myriam Telus, Laura Schaefer, Jonathan J. Fortney, Toyanath Joshi | Summary: Terrestrial exoplanets likely form initial atmospheres through outgassing during and after accretion, although there is currently no first-principles understanding of how to connect a planet’s bulk composition to its early atmospheric properties. Important […]
Kavli Affiliate: Alireza Marandi | First 5 Authors: Luis Ledezma, Ryoto Sekine, Qiushi Guo, Rajveer Nehra, Saman Jahani | Summary: Strong amplification in integrated photonics is one of the most desired optical functionalities for computing, communications, sensing, and quantum information processing. Semiconductor gain and cubic nonlinearities, such as four-wave mixing and stimulated Raman and Brillouin […]
Kavli Affiliate: Alireza Marandi | First 5 Authors: Marc Jankowski, Nayara Jornod, Carsten Langrock, Boris Desiatov, Alireza Marandi | Summary: The generation and amplification of photons by parametric down-conversion in quadratic nonlinear media is used as a source of entangled photons, squeezed light, and short optical pulses at difficult to access wavelengths. Optical nonlinearities are […]
Kavli Affiliate: Alireza Marandi | First 5 Authors: Marc Jankowski, Nayara Jornod, Carsten Langrock, Boris Desiatov, Alireza Marandi | Summary: High-gain optical parametric amplification is an important nonlinear process used both as a source of coherent infrared light and as a source of nonclassical light. In this work, we experimentally demonstrate an approach to optical […]
Kavli Affiliate: Austin J. Minnich | First 5 Authors: Hirsh Kamakari, Shi-Ning Sun, Mario Motta, Austin J. Minnich, | Summary: Quantum simulation on emerging quantum hardware is a topic of intense interest. While many studies focus on computing ground state properties or simulating unitary dynamics of closed systems, open quantum systems are an interesting target […]
Kavli Affiliate: Jeffrey B. Neaton | First 5 Authors: Sophie F. Weber, Jeffrey B. Neaton, , , | Summary: Recent experiments on the antiferromagnetic intercalated transition metal dichalcogenide $mathrm{Fe_{1/3}NbS_2}$ have demonstrated reversible resistivity switching by application of orthogonal current pulses below its magnetic ordering temperature, making $mathrm{Fe_{1/3}NbS_2}$ promising for spintronics applications. Here, we perform density […]
Kavli Affiliate: Michael Wimmer | First 5 Authors: Markus Schütz, Bernhard Kerbl, Michael Wimmer, , | Summary: While commodity GPUs provide a continuously growing range of features and sophisticated methods for accelerating compute jobs, many state-of-the-art solutions for point cloud rendering still rely on the provided point primitives (GL_POINTS, POINTLIST, …) of graphics APIs for […]
Kavli Affiliate: Clarence Chang | First 5 Authors: Kristin Dona, Jesse Liu, Noah Kurinsky, David Miller, Pete Barry | Summary: Dedicated spectrometers for terahertz radiation with [0.3, 30] THz frequencies using traditional optomechanical interferometry are substantially less common than their infrared and microwave counterparts. This paper presents the design and initial performance measurements of a […]