Non-Thermal Physics Drives Compact, Self-Regulated Galaxy Morphologies at Cosmic Dawn

Posted by klaurent Stanford

Kavli Affiliate: Risa Wechsler | Summary:James Webb Space Telescope (JWST) has discovered unexpectedly bright, rapidly growing galaxies in the early universe, which were not predicted by most previously existing galaxy formation models. Using synthetic JWST observations of the Azahar simulation suite, we show that comprehensive non-thermal physics ("Full-Physics") produces compact, self-regulated galaxies that match observations […]


Continue.. Non-Thermal Physics Drives Compact, Self-Regulated Galaxy Morphologies at Cosmic Dawn

The first three-dimensional map of thermal phases in the local interstellar medium

Posted by klaurent Stanford

Kavli Affiliate: Troy Porter | Summary:The thermal state of interstellar gas controls whether it remains warm and diffuse or cools into dense clouds. Twenty-one centimetre observations have established a statistical picture of neutral-gas phases, but their three-dimensional architecture has not previously been mapped. Here we present $mathcalP_rm 3D$, a three-dimensional reconstruction of thermal phase in […]


Continue.. The first three-dimensional map of thermal phases in the local interstellar medium

The Azahar Project: Non-Thermal Physics Drives Star Formation Burstiness and the Evolution of the UV Luminosity Density at Cosmic Dawn

Posted by klaurent Cambridge

Kavli Affiliate: Debora Sijacki | Summary:JWST observations, which have pushed the discovery and characterization of galaxies to cosmic dawn, have revealed significant deficiencies in state-of-the-art galaxy formation simulations, motivating the need for novel, physically grounded models. We present the first results from the Azahar suite of ten high-resolution ($sim$20 pc), large-volume zoom-in cosmological simulations, which […]


Continue.. The Azahar Project: Non-Thermal Physics Drives Star Formation Burstiness and the Evolution of the UV Luminosity Density at Cosmic Dawn

High-Q superconducting microwave resonators using MBE titanium nitride

Posted by klaurent Cornell

Kavli Affiliate: Grace Xing | Summary:Using molecular beam epitaxy, we have realized thin films of titanium nitride (TiN) on c-plane sapphire that exhibit the lowest observed full-width at half maximum X-ray rocking curve width of 18 arcsec. Though the (111) oriented TiN exhibits an abrupt and crystalline interface with sapphire, for the first time we […]


Continue.. High-Q superconducting microwave resonators using MBE titanium nitride

High-Q superconducting microwave resonators using MBE titanium nitride

Posted by klaurent Cornell

Kavli Affiliate: Grace Xing | Summary:Using molecular beam epitaxy, we have realized thin films of titanium nitride (TiN) on c-plane sapphire that exhibit the lowest observed full-width at half maximum X-ray rocking curve width of 18 arcsec. Though the (111) oriented TiN exhibits an abrupt and crystalline interface with sapphire, for the first time we […]


Continue.. High-Q superconducting microwave resonators using MBE titanium nitride

LIVE-RIS: Real-Time In-Flight Actuation of UAV-Mounted RIS

Posted by klaurent Cornell

Kavli Affiliate: David Muller | Summary:Reconfigurable intelligent surfaces (RIS) are emerging as a key technology for sixth-generation (6G) wireless networks due to their ability to dynamically control the propagation environment. To ensure favorable Line-of-Sight (LoS) conditions in real-world applications, the RIS is mounted on an unmanned aerial vehicle (UAV). While the potential of UAV-mounted RIS […]


Continue.. LIVE-RIS: Real-Time In-Flight Actuation of UAV-Mounted RIS

Bosonic SPT and invertible phases and its relation to Steenrod’s problem

Posted by klaurent Tokyo

Kavli Affiliate: Yuji Tachikawa | Summary:Bosonic invertible and symmetry-protected topological (SPT) phases are well-known to be described by ordinary cohomology groups in low dimensions, but `beyond-cohomology’ phases appear in higher dimensions. We make a systematic study of them, and find that the first major non-triviality is a mod-3 phenomenon, and not a mod-2 phenomenon as […]


Continue.. Bosonic SPT and invertible phases and its relation to Steenrod’s problem

Second-Order Optical Nonlinearity of AlScN Films Grown By Molecular Beam Epitaxy

Posted by klaurent Cornell

Kavli Affiliate: Grace Xing | Summary:Alloys of AlN have rapidly emerged as a material platform for nonlinear optics. In this paper, we measure the second-order optical nonlinearity of AlScN films grown directly on nitrided c-plane sapphire by molecular beam epitaxy. This direct growth approach, which bypasses a thick AlN buffer layer, allows us to isolate […]


Continue.. Second-Order Optical Nonlinearity of AlScN Films Grown By Molecular Beam Epitaxy

Quantum correlations of tripartite mixed states in the black hole quantum atmosphere

Posted by klaurent Caltech

Kavli Affiliate: Anqi Zhang| Summary:We investigate quantum state texture, genuine multipartite entanglement, and tripartite nonlocality of a tripartite mixed state in the black hole quantum atmosphere. By introducing the Hartle-Hawking local temperature into the Bogoliubov coefficients, we characterize the influence of the local Hawking effect on both physically accessible and inaccessible reduced states. We find […]


Continue.. Quantum correlations of tripartite mixed states in the black hole quantum atmosphere

VENUS: an ultra-faint galaxy hosting the metal-poor type II supernova at $z=5.13$ Witnessing the initial metal enrichment with extremely frequent core-collapse supernovae?

Posted by klaurent Peking

Kavli Affiliate: Kohei Inayoshi | Summary:We present the first characterization of the host galaxy of a recently discovered type IIP SN at $z=5.13$ (SN Eos). SN Eos and its host galaxy are gravitationally lensed and multiply imaged. The total magnification $μsim53$ enables spatially resolving the system, allowing us to localize the core-collapse supernova (CCSN) position […]


Continue.. VENUS: an ultra-faint galaxy hosting the metal-poor type II supernova at $z=5.13$ Witnessing the initial metal enrichment with extremely frequent core-collapse supernovae?