Optics-microwave entanglement and state teleportation mediated by a cavity magnomechanical system

Posted by klaurent Delft

Kavli Affiliate: Ya Blanter | Summary:Generating usable output-entanglement in continuous variable systems can serve as a viable resource for improving applications in quantum information science. In this work, we show how to generate steady-state output-entanglement in a two-stage conversion setup between optical and microwave photon which employs resonantly coupled magnetic and mechanical excitations, as proposed […]


Continue.. Optics-microwave entanglement and state teleportation mediated by a cavity magnomechanical system

Optics-microwave entanglement and state teleportation mediated by a cavity magnomechanical system

Posted by klaurent Delft

Kavli Affiliate: Ya Blanter | Summary:Generating usable output-entanglement in continuous variable systems can serve as a viable resource for improving applications in quantum information science. In this work, we show how to generate steady-state output-entanglement in a two-stage conversion setup between optical and microwave photon which employs resonantly coupled magnetic and mechanical excitations, as proposed […]


Continue.. Optics-microwave entanglement and state teleportation mediated by a cavity magnomechanical system

JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: stellar population catalogue for galaxies in GOODS-N and GOODS-S

Posted by klaurent Cambridge

Kavli Affiliate: Roberto Maiolino | Summary:We present the galaxy stellar population catalogue from the JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5 (DR5), providing homogeneous Bayesian inference of physical galaxy properties in GOODS-N and GOODS-S. Using deep JWST/NIRCam and MIRI imaging combined with ancillary multi-wavelength data, we model the spectral energy distributions of ~500,000 […]


Continue.. JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: stellar population catalogue for galaxies in GOODS-N and GOODS-S

A Magnetized Black Hole Envelope Model for Little Red Dots

Posted by klaurent Peking

Kavli Affiliate: Kohei Inayoshi | Summary:Recent observations have revealed a unique class of active galactic nuclei (AGNs), termed little red dots (LRDs). These objects are hypothesized to be powered by massive black holes rapidly accreting in dense gaseous environments. Theoretical studies suggest that the circum-nuclear gas can form an optically thick black hole envelope (BHE), […]


Continue.. A Magnetized Black Hole Envelope Model for Little Red Dots

Lithium Enrichment in a Subgiant Star with a Brown Dwarf Companion: A Planetary Engulfment Candidate

Posted by klaurent MIT

Kavli Affiliate: Andrew Vanderburg | Summary:Theoretical models predict that subgiants within a narrow mass regime can retain detectable lithium enrichment signatures from planetary engulfment. We test this prediction using TOI-5882, selected because it occupies this favorable subgiant parameter space and hosts a massive brown dwarf ($22 , M_ rm J$, $P=7.1 ,rm d$) companion capable […]


Continue.. Lithium Enrichment in a Subgiant Star with a Brown Dwarf Companion: A Planetary Engulfment Candidate

Essentially singular limits of Jacobi operators and applications to higher-order squeezing

Posted by klaurent Berkeley

Kavli Affiliate: Felix Fischer | Summary:We study a family of Jacobi operators in which the diagonal entries are multiplied by a coupling parameter $λgeq0$. Under suitable conditions, the operator is self-adjoint for every $λ>0$, while the formal limit at $λ=0$ is a symmetric Jacobi operator admitting a one-parameter family of self-adjoint extensions. A central ingredient […]


Continue.. Essentially singular limits of Jacobi operators and applications to higher-order squeezing

Optical Super-orbital Modulation of SMC X-1: Disk Precession and a Revised Pulsar Mass

Posted by klaurent MIT

Kavli Affiliate: Michael Fausnaugh | Summary:The observational determination of the lower limit of neutron star masses is crucial for the physics of core-collapse supernovae. In this light, SMC X-1 is an important object because of its estimated pulsar mass lying near or potentially below the theoretical lower limit. SMC X-1 exhibits a double peaked optical […]


Continue.. Optical Super-orbital Modulation of SMC X-1: Disk Precession and a Revised Pulsar Mass

Stacking-order-dependent electronic properties of MoTe2/WSe2 moiré bilayers

Posted by klaurent Cornell

Kavli Affiliate: David Muller | Summary:Transition metal dichalcogenide (TMD) moiré bilayers have realized a wide range of strongly correlated and topological phenomena. The physics in these materials is often sensitive to the interlayer stacking order. Polarization-resolved optical second harmonic generation (SHG) is the most used technique for stacking order characterization but unverified for most heterobilayers. […]


Continue.. Stacking-order-dependent electronic properties of MoTe2/WSe2 moiré bilayers

Federated LoRA Fine-Tuning for LLMs via Collaborative Alignment

Posted by klaurent Peking

Kavli Affiliate: Feng Long| Summary: Low-rank adaptation (LoRA) has emerged as a powerful tool for parameter-efficient fine-tuning of large language models (LLMs). This paper studies LoRA under a federated learning setting, enabling collaborative fine-tuning across clients while preserving parameter efficiency. We focus on a highly heterogeneous regime in which clients share only partial structure and […]


Continue.. Federated LoRA Fine-Tuning for LLMs via Collaborative Alignment

Adaptive Test for Jump

Posted by klaurent Peking

Kavli Affiliate: Feng Long| Summary: We develop an adaptive jump test for discretely observed high-frequency semimartingales by combining the A"it-Sahalia–Jacod ratio statistic (A"it-Sahalia and Jacod, 2009) and the Lee–Mykland extreme-return statistic (Lee and Mykland, 2008) with the Cauchy combination rule. Allowing stochastic It^o drift, volatility, and leverage, we show asymptotic independence under the continuous-path null […]


Continue.. Adaptive Test for Jump