Cryogenic piezoelectric effects in thin film strontium titanate devices

Kavli Affiliate: Oskar Painter | Summary:Next generation quantum technologies will need to rely on efficient transduction between electrical, optical, and mechanical quantum degrees of freedom to generate large-scale entanglement over large distances. The performance of such transducers is fundamentally limited by the cryogenic properties of the underlying materials. Here, we demonstrate that engineering strain in […]


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SimToolReal: An Object-Centric Policy for Zero-Shot Dexterous Tool Manipulation

Kavli Affiliate: Wei Gao| Summary:The ability to manipulate tools significantly expands the set of tasks a robot can perform. Yet, tool manipulation represents a challenging class of dexterity, requiring grasping thin objects, in-hand object rotations, and forceful interactions. Since collecting teleoperation data for these behaviors is challenging, sim-to-real reinforcement learning (RL) is a promising alternative. […]


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Graded anisotropic metamaterials for elastic wave mode conversion

Kavli Affiliate: Chiara Daraio | Summary:Efficient transmission of elastic waves across interfaces is central to several applications, including medical imaging, seismic isolation, and transducer design. Interfaces with abrupt changes in the material properties significantly impede wave transmission, leading to reflections. This limitation, known as impedance mismatch, becomes even more prominent for mode conversion between different […]


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Keck Observations in the INfrared of Taurus and $ρ$ Oph Exoplanets And Ultracool dwarfs (KOINTREAU) II: Two Young Bound Companions to Ophiuchus Stars

Kavli Affiliate: Dimitri Mawet| Summary:We present the second set of discoveries from Keck Observations in the INfrared of Taurus and $ρ$ Oph Exoplanets And Ultracool dwarfs (KOINTREAU), an adaptive optics survey of young stars in the Taurus and $ρ$ Oph star-forming regions using Keck/NIRC2 in conjunction with the Keck infrared pyramid wavefront sensor. We have […]


Continue.. Keck Observations in the INfrared of Taurus and $ρ$ Oph Exoplanets And Ultracool dwarfs (KOINTREAU) II: Two Young Bound Companions to Ophiuchus Stars

Relativistic Effects in LaBi$_2$ Thin Films

Kavli Affiliate: Joseph Falson | Summary:Chemical substitution in crystalline quantum materials is a powerful way to explore the consequences of strong spin-orbit coupling on their structural and electronic properties. In this work, we present an investigation of thin films of the La$textitPn_2$ ($textitPn$~=~Sb, Bi) class of layered square-net intermetallics. We report the growth of LaBi$_2$ […]


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The compositions of the HR 8799 planets reflect accretion of both solids and metal-enriched gas

Kavli Affiliate: Dimitri Mawet| Summary:With four giant planets ($msim5-10~M_rm Jup$, $T_rmeffsim900-1200$ K) orbiting between 15-70 au, HR 8799 provides an unparalleled testbed for studying giant planet formation and probing compositional trends across the protoplanetary disk. We present new JWST/NIRSpec IFU observations ($2.85-5.3~μ$m, $Rapprox2700$) that now include the spectrum of HR 8799 b, and higher S/N […]


Continue.. The compositions of the HR 8799 planets reflect accretion of both solids and metal-enriched gas

The compositions of the HR 8799 planets reflect accretion of both solids and metal-enriched gas

Kavli Affiliate: Dimitri Mawet| Summary:With four giant planets ($msim5-10~M_rm Jup$, $T_rmeffsim900-1200$ K) orbiting between 15-70 au, HR 8799 provides an unparalleled testbed for studying giant planet formation and probing compositional trends across the protoplanetary disk. We present new JWST/NIRSpec IFU observations ($2.85-5.3~μ$m, $Rapprox2700$) that now include the spectrum of HR 8799 b, and higher S/N […]


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Spectral response of SPHEREx

Kavli Affiliate: James Bock | Summary:The Spectro Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer (SPHEREx) is conducting the first all-sky near infrared spectral survey spanning 0.75 to 5.0um with resolving power R~35 to 130. Linear variable filters mounted in front of six H2RG detectors produce a position dependent spectral […]


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Visible dual-comb spectroscopy across more than 100 THz with lithium niobate nanophotonic waveguides

Kavli Affiliate: Alireza Marandi | Summary:Broadband and high-resolution spectroscopy in the visible and ultraviolet is central to advances in multiple fields, including fundamental quantum physics, biology, atmospheric science and astronomy. Traditionally, these measurements are performed with grating or Fourier-transform spectrometers using incoherent light sources. Leveraging coherent light enables powerful frequency-comb-based techniques, but is limited by […]


Continue.. Visible dual-comb spectroscopy across more than 100 THz with lithium niobate nanophotonic waveguides