Lawrence Berkeley National Laboratory

The DESI Y1 RR Lyrae Catalog. II. The Metallicity Dependency of Pulsational Properties, the Shape of the RR Lyrae Instability Strip, and Metal Rich RR Lyrae

Abstract RR Lyrae stars (RRLs) are valuable probes of both Milky Way assembly and stellar-evolution physics. Using a sample 6240 RRLs obtained in the first year of the Dark Energy Spectroscopic Instrument (DESI) survey, we investigate the metallicity of RRLs and its correlation w...

Directed Surface Immobilization of Coordination Cages for Host–Guest Studies

Abstract Self-assembled coordination cages are bioinspired host–guest systems mimicking natural nanoconfinements and their functions as receptors and reaction compartments. While such systems are conventionally studied in solution or as bulk materials, the examination of surface-...

Lamination Pressure Governs the Effectiveness of Sn Buffer Layers in Low-Pressure All-Solid-State Lithium Metal Batteries

Abstract All-solid-state lithium-metal batteries require stable Li plating/stripping under low stack pressures relevant to practical operation. Here, Sn was used as a model Li-alloying buffer layer to clarify how lamination pressure affects interfacial stability. By independently...

Kinetically arrested phase separation leads to tunable domain structures in vapor-deposited glasses

The characteristic length scale of phase-separated organic thin film blends is a critical structural parameter governing the performance and functionality of organic electronic devices. The arrested morphologies of vapor-deposited organic thin films result from the interplay betw...

Numerical Modelling Analysis of Borehole Electromagnetic Methods for Imaging Serpentinized Zones During Stimulated Geological Hydrogen Production

ABSTRACT The exploration and stimulation of geological hydrogen within ultramafic rocks represent an emerging frontier in energy resources. Stimulating hydrogen production involves injecting water and catalysts to accelerate serpentinization, a mineral alteration process that sig...

Many-Body Ground State Manifold of Flat Band Interacting Hamiltonian for Magic Angle Twisted Bilayer Graphene

Abstract At a magic relative twist angle, magic angle twisted bilayer graphene (MATBG) has an octet of flat bands that can host strong correlation physics when partially filled. A key theoretical discovery in MATBG is the existence of ferromagnetic Slater determinants as exact gr...

Scaling Phage-Bacteria Interaction Contexts: From Pairwise Mechanisms to Community Dynamics

Bacteriophages (phages), viruses that parasitize bacteria, hold tremendous potential as antimicrobial agents, microbiome modulators, and industrial biocontrol tools; yet clinical and environmental applications remain frustratingly inconsistent. Decades of research on isolated pha...

Multimode and Random-Access Optical Quantum Memory via Adiabatic Phase Imprinting

A photonic quantum memory that can store multiple qubits and later recall any randomly chosen subset is essential for large-scale quantum networking and computing. This capability, similar to random-access memory in classical computers, has been difficult to achieve due to the la...

Typhoon‐Driven Near‐Surface Groundwater Dynamics Revealed by Ambient Noise in the Mountain Watershed

Abstract Near‐surface groundwater dynamics (NSGD) regulate water residence time and downstream water resources in mountain watersheds, yet whether a single extreme rainfall event can reorganize near‐surface storage remains unclear. Here, we examine typhoon‐driven NSGD using ambie...

Truncation uncertainties for accurate quantum simulations of lattice gauge theories

The encoding of lattice gauge theories onto quantum computers requires a discretization of the gauge field's Hilbert space on each link, which presents errors with respect to the Kogut–Susskind limit. In the electric basis, Hilbert space fragmentation has recently been shown to l...

Measurements of the production of W$$^{\pm }$$ and Z$$^0$$ bosons in pp collisions at $$\sqrt{s} = 13$$ TeV

Abstract Measurements of the production of the W $$^{\pm }$$ ± and Z $$^0$$ 0 bosons at midrapidity in pp collisions at $$\sqrt{s} = 13$$ s = 13 TeV with ALICE at the Large Hadron Collider (LHC) are presented. The W $$^{\pm }$$ ± and Z $$^0$$ 0 bosons are detected via their (di)e...

An Elastoplastic Constitutive Model for Anisotropic Hydro-Mechanical Response of Opalinus Clay

Opalinus Clay is currently proposed as the host rock for a deep geological repository (DGR) for radioactive waste in Switzerland. Gas is expected to be generated within the repository due to anoxic corrosion of metallic components and the degradation of organic material, and unde...

The biogeography of giant viruses and interactions with Eukaryotes across European lakes

Abstract Advances in genomics have revealed a diversity of nucleocytoplasmic large DNA viruses (phylum Nucleocytoviricota) that infect eukaryotes, but their ecology beyond the oceans remains poorly understood. We recover 208 Nucleocytoviricota genomes, including 205 putative new...

Understanding the Microscopic Structure of Counterion Condensation Near a Charged Polypeptoid Surface

Abstract The molecular-level study of the electrical double layer is key to understanding ion solvation, adsorption, and transport in many electrochemical and biological systems. Here, we combine the modified Gaussian renormalized fluctuation theory and molecular dynamics simulat...

Polymer-Free Assembly of Unencapsulated van der Waals Heterostructure Devices

Abstract van der Waals (vdW) heterostructures provide a versatile platform for exploring emergent quantum phenomena, yet their fabrication is often limited by interfacial contamination and incompatibility with surface-sensitive characterization. Here, we demonstrate muscovite mic...

Dissipative Quantum Algorithms for Excited-State Quantum Chemistry

Abstract Electronic excited states are central to a vast array of physical and chemical phenomena, yet accurate and efficient methods for preparing them on quantum devices remain challenging and are comparatively underexplored. We introduce a general dissipative algorithm for sel...

AC/DC: Automated Compilation for Dynamic Circuits

Dynamic quantum circuits incorporate mid-circuit measurements (MCMs) and feed-forward operations are crucial for manipulating quantum information. They have been broadly used in quantum error correction and quantum teleportation. Recently, they are utilized to prepare certain sta...

Post-Fabrication Deprotection of Semiconducting Polymers for High-Performance Organic Electrochemical Transistors

Abstract Conventionally, the development of high-performance organic electrochemical transistor (OECT) devices heavily depends on side-chain optimization of glycolated and alkylated organic mixed ionic-electronic conducting polymers (OMIECs), which typically leads to a compromise...

Suspended thin-film lithium niobate modulator for broadband mid-infrared light modulation and frequency comb generation

Abstract The mid-infrared (MIR) spectral regime is central to applications including remote sensing, precision spectroscopy, higher harmonic generation, and free-space optical communication. However, coherent and broadband MIR modulation remains challenging owing to high optical...

A noncontiguous code for RNA-guided DNA recognition at the origin of CRISPR-Cas

CRISPR-Cas provides RNA-mediated adaptive immunity, but how its first RNA-guided effector arose is unclear. In this study, we report the discovery of Viral Interference Programmable Repeat (VIPR) systems consisting of a Vipr protein ancestral to the earliest CRISPR-Cas effectors...