July 2021 – Kavli Institute Pre-Print Publications

Two-photon sideband transition in a driven quantum Rabi model : Quantitative discussions with derived longitudinal drives and beyond the rotating wave approximation

Posted by dbos July 31, 2021Delft

Kavli Affiliate: Gary A. Steele | First 5 Authors: Byoung-moo Ann, Wouter Kessels, Gary A. Steele, , | Summary: In this work, we analytically and numerically study the sideband transition dynamics of the driven quantum Rabi model (QRM). We focus in particular on the conditions when the external transverse drive fields induce first-order sideband transitions. […]

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Two-photon sideband transition in a driven quantum Rabi model : Quantitative discussions with derived longitudinal drives and beyond the rotating wave approximation

Posted by klaurent July 31, 2021Delft

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Revised event rates for extreme and extremely large mass-ratio inspirals

Posted by klaurent July 31, 2021Peking

Kavli Affiliate: Xian Chen | First 5 Authors: Verónica Vázquez-Aceves, Lorenz Zwick, Elisa Bortolas, Pedro R. Capelo, Pau Amaro-Seoane | Summary: One of the main targets of the Laser Interferometer Space Antenna (LISA) is the detection of extreme mass-ratio inspirals (EMRIs) and extremely large mass-ratio inspirals (X-MRIs). Their orbits are expected to be highly eccentric […]

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SOFIA-upGREAT imaging spectroscopy of the [C II] 158um fine structure line of the Sgr B region in the Galactic center

Posted by klaurent July 30, 2021Stanford

Kavli Affiliate: R. Morris | First 5 Authors: A. I. Harris, R. Güsten, M. A. Requena-Torres, D. Riquelme, M. R. Morris | Summary: We report SOFIA-upGREAT spectroscopic imaging of the [C II] 158um spectral line, as well as a number of [O I] 63um spectra, across a 67×45 pc field toward the Sgr B region […]

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What it Takes to Measure Reionization with Fast Radio Bursts

Posted by klaurent July 29, 2021Cambridge

Kavli Affiliate: George Efstathiou | First 5 Authors: Stefan Heimersheim, Nina S. Sartorio, Anastasia Fialkov, Duncan R. Lorimer, | Summary: Fast Radio Bursts (FRBs) are recently-discovered extra-galactic radio transients which exhibit a distance-dependent dispersion of their signal, and thus can be used as cosmological probes. In this article we, for the first time, apply a […]

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Entropy-Conserving Scheme for Modeling Nonthermal Energies in Fluid Dynamics Simulations

Posted by klaurent July 29, 2021Chicago

Kavli Affiliate: Andrey V. Kravtsov | First 5 Authors: Vadim A. Semenov, Andrey V. Kravtsov, Benedikt Diemer, , | Summary: We compare the performance of energy-based and entropy-conservative schemes for modeling nonthermal energy components, such as unresolved turbulence and cosmic rays, using idealized fluid dynamics tests and isolated galaxy simulations. While both methods are aimed […]

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HD 183579b: A Warm Sub-Neptune Transiting a Solar Twin Detected by TESS

Posted by klaurent July 29, 2021MIT

Kavli Affiliate: Edward H. Morgan | First 5 Authors: Tianjun Gan, Megan Bedell, Sharon Xuesong Wang, Daniel Foreman-Mackey, Jorge Meléndez | Summary: We report the discovery and characterization of a transiting warm sub-Neptune planet around the nearby bright ($V=8.75$ mag, $K=7.15$ mag) solar twin HD 183579, delivered by the Transiting Exoplanet Survey Satellite (TESS). The […]

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Models of Hidden Purity

Posted by klaurent July 28, 2021MIT

Kavli Affiliate: Frank Wilczek | First 5 Authors: Frank Wilczek, , , , | Summary: I extend, apply, and generalize a model of a quantum radiator proposed by Griffiths to construct models of radiation fields that exhibit high entropy for long periods of time but approach pure states asymptotically. The models, which are fully consistent […]

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Blueshifted hydrogen emission and shock wave of RR Lyrae variables in SDSS and LAMOST

Posted by klaurent July 28, 2021Peking

Kavli Affiliate: Huawei Zhang | First 5 Authors: Xiao-Wei Duan, Xiaodian Chen, Weijia Sun, Licai Deng, Huawei Zhang | Summary: Hydrogen emissions of RR Lyrae variables are the imprints of shock waves traveling through their atmospheres. We develop a pattern recognition algorithm, which is then applied to single-epoch spectra of SDSS and LAMOST. These two […]

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Universal scaling of shear thickening transitions

Posted by klaurent July 28, 2021Cornell

Kavli Affiliate: Itai Cohen | First 5 Authors: Meera Ramaswamy, Itay Griniasty, Danilo B. Liarte, Abhishek Shetty, Eleni Katifori | Summary: Nearly all dense suspensions undergo dramatic and abrupt thickening transitions in their flow behaviour when sheared at high stresses. Such transitions occur when the dominant interactions between the suspended particles shift from hydrodynamic to […]

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