Electrothermal behavior of superconducting nanowires buried in a commercial CMOS process

Posted by klaurent Chicago

Kavli Affiliate: Clarence Chang | Summary:Superconducting films native to a commercial CMOS process enable co-integration of superconducting devices (high-kinetic-inductance elements and nanowire detectors) with cryogenic CMOS on one monolithic die. Such films are buried in the front-end-of-line, beneath the back-end-of-line metal stack, an environment that might quench a self-heated hot spot. Current-voltage characteristics are reported […]


Continue.. Electrothermal behavior of superconducting nanowires buried in a commercial CMOS process

Probing Spatial Variations in IGM Transmission: Higher Ly$α$ Visibility in an H$α$-Selected Galaxy Overdensity at $zsimeq6.2$

Posted by klaurent Peking

Kavli Affiliate: Kohei Inayoshi | Summary:The visibility of Ly$α$ emission during the epoch of reionization depends on both galaxy properties and the transmission of Ly$α$ photons through the intergalactic medium (IGM). Using JWST/NIRCam F470N imaging, we identify a prominent projected overdensity of H$α$ emitters (HAEs) at $zsimeq6.2$ in CEERS field. We use Subaru/HSC NB872 imaging […]


Continue.. Probing Spatial Variations in IGM Transmission: Higher Ly$α$ Visibility in an H$α$-Selected Galaxy Overdensity at $zsimeq6.2$

Observation of a topological edge state among localized bulk states in the anisotropic quantum Rabi model

Posted by klaurent Stanford

Kavli Affiliate: Susan Clark | Summary:Topological phases are governed by discrete symmetries that protect boundary modes against local perturbations. When translational periodicity is absent, the bulk states also become localized, so that a topological edge state can no longer be distinguished from them by spatial localization alone. Here, we investigate the topological edge state (TES) […]


Continue.. Observation of a topological edge state among localized bulk states in the anisotropic quantum Rabi model

What Should Federated LoRA Share? FedSAIL via Input-aware Subspace Alignment

Posted by klaurent Peking

Kavli Affiliate: Feng Long| Summary: Federated low-rank adaptation (LoRA) requires identifying an update structure that is shared across heterogeneous clients. Prior work reports strong similarity among trained LoRA projection matrices across clients; however, such agreement may be largely induced by common initialization and collapses toward random overlap under independent initialization. More crucially, relying solely on […]


Continue.. What Should Federated LoRA Share? FedSAIL via Input-aware Subspace Alignment

Cross-correlation between CMB B-modes and Faraday Rotation as a Novel Probe of Primordial Magnetic Fields

Posted by klaurent Tokyo

Kavli Affiliate: Toshiya Namikawa | Summary:We investigate the cross-bispectrum between the cosmic microwave background (CMB) $B$-mode polarization and two Faraday rotation (FR) angles as a new probe of primordial magnetic fields (PMFs). Assuming Gaussian PMFs with both non-helical and helical components, we derive the $Bαα$ bispectrum and decompose it into parity-even and parity-odd contributions. The […]


Continue.. Cross-correlation between CMB B-modes and Faraday Rotation as a Novel Probe of Primordial Magnetic Fields

Galaxy and Halo Assembly Bias in Alternative Dark Matter Models

Posted by klaurent MIT

Kavli Affiliate: Mark Vogelsberger | Summary:The clustering of dark matter halos depends not only on halo mass but also on secondary halo properties, a phenomenon known as halo assembly bias. Coupled with variations in halo occupation, this dependence impacts galaxy clustering, an effect termed galaxy assembly bias. While previous studies have found only weak cosmological […]


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Investigating potential causes for high inferred intrinsic temperatures of warm transiting Neptune and Sub-Neptune planets

Posted by klaurent MIT

Kavli Affiliate: Sara Seager | Summary:Atmospheric characterization of a warm 10-30 Myr old sub-Neptune progenitor (V1298 Tau b) and a $sim$3.4 Gyr old warm super-Neptune (WASP-107b) using JWST have revealed extremely low methane abundance. Atmospheric forward models find higher than expected inferred intrinsic temperatures (450~K and 500~K) — inconsistent with theoretical planet formation and core-envelope […]


Continue.. Investigating potential causes for high inferred intrinsic temperatures of warm transiting Neptune and Sub-Neptune planets

The First Hubble Detection of a Secondary Eclipse from a Rocky Exoplanet: the 5.4-hour planet TOI-2431 b

Posted by klaurent MIT

Kavli Affiliate: Andrew Vanderburg | Summary:We present an HST/WFC3 G141 phase-curve observation of the ultra-short-period rocky planet TOI-2431 b and detect its secondary eclipse in the near infrared. Combined with the TESS optical eclipse, these measurements constrain the planet’s dayside brightness temperature, reflected light contribution, albedo, and heat redistribution. We detect the eclipse in the […]


Continue.. The First Hubble Detection of a Secondary Eclipse from a Rocky Exoplanet: the 5.4-hour planet TOI-2431 b

SLICE: Unveiling the Multi-Component Merging Core of SPT-CLJ1150-2805 Through Strong-Lensing Mass Modelling

Posted by klaurent Chicago

Kavli Affiliate: Michael Gladders | Summary:We present a new strong-lensing and X-ray mass model of the merging galaxy cluster SPT-CLJ1150-2805 ($z=0.383$), combining JWST NIRCam, HST, Chandra, and VLT/MUSE data to robustly decompose its collisionless and collisional components. Exploiting JWST, we expand the multiple-image catalogue with 66 new images (30 comprising 6 new systems). Our baseline […]


Continue.. SLICE: Unveiling the Multi-Component Merging Core of SPT-CLJ1150-2805 Through Strong-Lensing Mass Modelling

Discovery of minute-scale polarization angle rotation in a supermassive black hole jet

Posted by klaurent MIT

Kavli Affiliate: Herman Marshall | Summary:Relativistic jets from supermassive black holes oriented towards our line of sight called blazars have puzzled the astronomical community for decades. Their fast jets and preferential alignment creates a fog of relativistic effects that obscures their true properties. Optical polarimetry – tracing the uniformity, direction, and evolution of the magnetic […]


Continue.. Discovery of minute-scale polarization angle rotation in a supermassive black hole jet