The Very Large Array
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The next-generation Very Large Array prototype gathers its first light
The next-generation Very Large Array prototype gathers its first light Lisa Lock Scientific Editor Andrew Zinin Lead Editor The Very Large Array, the iconic field of radio antennas featured in the film "Contact" (inspired by Carl Sagan's novel), has a long and distinguished history of service. But after more than 45 years of studying the radio sky and probing the mysteries of the universe, the U.S. National Science Foundation National Radio Astronomy Observatory, which operates the VLA, is...
Beam-focusing Analysis for Modular XL-arrays: Effect of Time Synchronization Errors
arXiv:2606.01096v1 Announce Type: new Abstract: For near-field communications, it is a hardware-efficient means to form an extremely large-scale array (XL-array) by concatenating multiple modular arrays (also referred to as subarrays). In this letter, we aim to investigate the effect of time synchronization errors among transmissions of different subarrays on the beam-focusing performance.
Multipole analysis of substrate-supported dielectric nanoresonator arrays with T-matrix method
arXiv:2006.09137v2 Announce Type: replace Abstract: Substrates, and layered media in general, are ubiquitous, affect the properties of whatever is in their vicinity, and their influence is, in an arbitrary framework, challenging to quantify analytically, especially for large arrays which escape explicit numerical treatment due to the computational burden. In this work, we develop a versatile T-matrix based framework in which we generalize the coupled multipole model towards arbitrarily high...
Unbiased identification of responding T cell clones from longitudinal repertoire sequencing with CloneSearch
T cells activate and expand upon interaction with cognate antigen, derived from pathogens or mutated proteins. T cell clones can be identified by their T cell receptor (TCR) which can act as a unique barcode to track their expansion. Longitudinal TCR sequencing can be used to track T cell responses to a large array of stimuli.
First results of a high sensitivity and transportable Ring Laser Gyroscope
arXiv:2606.02594v1 Announce Type: new Abstract: Within the frame of the GINGER project, aimed at installing an array of large frame ring laser gyroscopes for fundamental physics tests and as part of a geophysics observatory located in the underground laboratory at Gran Sasso, Italy (LNGS-INFN), we are developing a ring laser gyroscope design to reduce spurious rotation of instrumental origin and the ability to extend the cavity perimeter from 1.5 up to 5m, thanks to the implementation of...
Engineering Favorable Propagation: Near-Field IRS Deployment for Spatial Multiplexing
arXiv:2601.07317v2 Announce Type: replace Abstract: In intelligent reflecting surface IRS assisted multiple input multiple output MIMO systems, a strong line of sight LoS link is required to compensate for the severe cascaded path loss. However, such a link renders the effective channel highly rank deficient and fundamentally limits spatial multiplexing. To overcome this limitation, this paper leverages the large aperture of sparse arrays to harness near field spherical wavefronts, and...
Distant blazar OP 313 emits very high-energy gamma rays above 100 GeV
June 3, 2026 report Distant blazar OP 313 emits very high-energy gamma rays above 100 GeV Tomasz Nowakowski Author Stephanie Baum Scientific Editor Robert Egan Associate Editor An international team of astronomers have employed one of the Large-Sized Telescopes (LSTs) at the Cherenkov Telescope Array Observatory (CTAO) to observe a distant blazar known as OP 313. Results of the observational campaign, published May 26 on the arXiv preprint server, shed more light on the behavior and nature...
How do you study an invisible exoplanet? Astronomers discover planetary 'fingerprints' in the rings around stars
How do you study an invisible exoplanet? Astronomers discover planetary 'fingerprints' in the rings around stars You just have to read between the rings. How do you weigh a planet you can't see from many light-years away?
A Virtual Processor brings back the Free Lunch
arXiv:2605.30507v1 Announce Type: new Abstract: This work introduces a self-optimizing virtual processor (VP) for numerical array programs that shifts parallelization from a manual developer task to a cooperative, agent-like runtime mechanism. Instead of relying on centralized task-graph scheduling, static compiler optimization, or explicitly annotated parallel constructs, the VP uses a decentralized network of cooperative execution segments, derived from the stream of numerical instructions...
A Virtual Processor brings back the Free Lunch
Announce Type: replace Abstract: This work introduces a self-optimizing virtual processor (VP) for numerical array programs that shifts parallelization from a manual developer task to a cooperative, agent-like runtime mechanism. Instead of relying on centralized task-graph scheduling, static compiler optimization, or explicitly annotated parallel constructs, the VP uses a decentralized network of cooperative execution segments, derived from the stream of numerical instructions and their data...