dbos – Page 23 – Kavli Institute Pre-Print Publications

Optimizing for a Near Single-Mode Type-0 Optical Parametric Amplifier in Nanophotonics

Posted by dbos December 9, 2024January 13, 2025Caltech

Kavli Affiliate: Alireza Marandi | First 5 Authors: Shivam Mundhra, Elina Sendonaris, Robert M. Gray, James Williams, Alireza Marandi | Summary: Thin-film lithium niobate (TFLN) has recently emerged as a promising platform for integrated nonlinear photonics, enabling the use of optical parametric amplifiers (OPAs) for applications in quantum information processing, precision metrology, and ultrafast optical […]

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Optimizing for a Near Single-Mode Type-0 Optical Parametric Amplifier in Nanophotonics

Posted by dbos December 9, 2024January 13, 2025Caltech

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Optimizing for a Near Single-Mode Type-0 Optical Parametric Amplifier in Nanophotonics

Posted by dbos December 9, 2024January 13, 2025Caltech

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Rarely categorical, always high-dimensional: how the neural code changes along the cortical hierarchy

Posted by dbos December 9, 2024January 13, 2025Columbia

Kavli Affiliate: Liam Paninski | Authors: Stefano Fusi and Liam Paninski | Summary: The brain is highly structured both at anatomical and functional levels. However, within individual brain areas, neurons often exhibit very diverse and seemingly disorganized responses. A more careful analysis shows that these neurons can sometimes be grouped together into specialized subpopulations (categorical […]

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How do uncertainties in galaxy formation physics impact field-level galaxy bias?

Posted by dbos December 9, 2024January 13, 2025Stanford

Kavli Affiliate: Risa H. Wechsler | First 5 Authors: Mahlet Shiferaw, Nickolas Kokron, Risa H. Wechsler, , | Summary: Our ability to extract cosmological information from galaxy surveys is limited by uncertainties in the galaxy-dark matter halo relationship for a given galaxy population, which are governed by the intricacies of galaxy formation. To quantify these […]

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A comprehensive study of type I (thermonuclear) bursts in the new transient SRGA J144459.2$-$604207

Posted by dbos December 8, 2024Peking

Kavli Affiliate: Renxin Xu | First 5 Authors: Tao Fu, Zhaosheng Li, Yuanyue Pan, Long Ji, Yupeng Chen | Summary: We report analysis of $textit{Insight}$-HXMT observations of the newly discovered accreting millisecond pulsar SRGA J144459.2$-$604207. During the outburst, detected in 2024 February by $textit{eROSITA}$, the broadband persistent spectrum was well fitted by an absorbed Comptonization […]

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TOI-4504: Exceptionally large Transit Timing Variations induced by two resonant warm gas giants in a three planet system

Posted by dbos December 7, 2024MIT

Kavli Affiliate: Roland Vanderspek | First 5 Authors: Michaela Vítková, Rafael Brahm, Trifon Trifonov, Petr Kabáth, Andrés Jordán | Summary: We present a joint analysis of TTVs and Doppler data for the transiting exoplanet system TOI-4504. TOI-4504 c is a warm Jupiter-mass planet that exhibits the largest known transit timing variations (TTVs), with a peak-to-node […]

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TOI-4504: Exceptionally large Transit Timing Variations induced by two resonant warm gas giants in a three planet system

Posted by dbos December 7, 2024MIT

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TOI-4504: Exceptionally large Transit Timing Variations induced by two resonant warm gas giants in a three planet system

Posted by dbos December 7, 2024MIT

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The First JWST View of a 30-Myr-old Protoplanetary Disk Reveals a Late-stage Carbon-rich Phase

Posted by dbos December 7, 2024Peking

Kavli Affiliate: Gregory J. Herczeg | First 5 Authors: Feng Long, Ilaria Pascucci, Adrien Houge, Andrea Banzatti, Klaus M. Pontoppidan | Summary: We present a JWST MIRI/MRS spectrum of the inner disk of WISE J044634.16$-$262756.1B (hereafter J0446B), an old ($sim$34 Myr) M4.5 star but with hints of ongoing accretion. The spectrum is molecule-rich and dominated […]

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