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Critical parameters are the key to superconductivity research, and reliable instrumentations can facilitate the study. Traditionally, one has to use several different measurement techniques to measure critical parameters separately. In this…

In performing a Bayesian analysis, two difficult problems often emerge. First, in estimating the parameters of some model for the data, the resulting posterior distribution may be multi-modal or exhibit pronounced (curving) degeneracies.…

天体物理仪器与方法 · 物理学 2013-12-20 F. Feroz , J. Skilling

Bayesian model selection provides a powerful framework for objectively comparing models directly from observed data, without reference to ground truth data. However, Bayesian model selection requires the computation of the marginal…

统计方法学 · 统计学 2024-01-17 Xiaohao Cai , Jason D. McEwen , Marcelo Pereyra

Diamond and diamond color centers have become prime hardware candidates for solid state-based technologies in quantum information and computing, optics, photonics and (bio)sensing. The synthesis of diamond materials with specific…

材料科学 · 物理学 2026-01-15 Zhi Jiang , Marco Peres , Carlo Bradac , Gil Gonçalves

We introduce a novel approach to boost the efficiency of the importance nested sampling (INS) technique for Bayesian posterior and evidence estimation using deep learning. Unlike rejection-based sampling methods such as vanilla nested…

天体物理仪器与方法 · 物理学 2023-06-30 Johannes U. Lange

The detection of individual molecules and their dynamics has been a long-standing challenge in the field of nanotechnology. In this work, we present a method that utilizes a nitrogen vacancy (NV) center and a dangling-bond on the diamond…

量子物理 · 物理学 2023-12-15 A. Biteri-Uribarren , P. Alsina-Bolívar , C. Munuera-Javaloy , R. Puebla , J. Casanova

Pre-main sequence (PMS) models provide invaluable tools for the study of star forming regions as they allow to assign masses and ages to young stars. Thus it is of primary importance to test the models against observations of PMS stars with…

太阳与恒星天体物理 · 物理学 2015-05-30 Mario Gennaro , Pier Giorgio Prada Moroni , Emanuele Tognelli

We present a new approach combining top down fabrication and bottom up overgrowth to create diamond photonic nanostructures in form of single-crystalline diamond nanopyramids. Our approach relies on diamond nanopillars, that are overgrown…

介观与纳米尺度物理 · 物理学 2020-01-30 Marietta Batzer , Brendan Shields , Elke Neu , Claudia Widmann , Christian Giese , Christoph Nebel , Patrick Maletinsky

\Kepler has revolutionised our understanding of both exoplanets and their host stars. Asteroseismology is a valuable tool in the characterisation of stars and \Kepler is an excellent observing facility to perform asteroseismology. Here we…

Artificially-grown diamond crystals have unique properties that make them suitable as solid-state particle detectors and dosimeters in high-radiation environments. We have been using sensors based on single-crystal diamond grown by chemical…

仪器与探测器 · 物理学 2021-05-26 G. Bassi , L. Bosisio , P. Cristaudo , M. Dorigo , A. Gabrielli , Y. Jin , C. La Licata , L. Lanceri , L. Vitale

We present a Bayesian method to cross-match 5,827,988 high proper motion Gaia sources ($\mu>40 \ mas \ yr^{-1}$) to various photometric surveys: 2MASS, AllWISE, GALEX, RAVE, SDSS and Pan-STARRS. To efficiently associate these objects across…

太阳与恒星天体物理 · 物理学 2021-05-07 Ilija Medan , Sébastien Lépine , Zachary Hartman

A Bayesian probability based approach is applied to the problem of detecting and parameterizing oscillations in the upper solar atmosphere for the first time. Due to its statistical origin, this method provides a mechanism for determining…

天体物理学 · 物理学 2008-12-18 M. S. Marsh , J. Ireland , T. Kucera

The NASA satellite Kepler has gathered about 1420 days-long photometric time series for more than 20000 red giant stars. For about 6600 of them also APOGEE spectroscopic parameters are available, making the sample of high interest for…

太阳与恒星天体物理 · 物理学 2019-06-25 T. Kallinger

With the unprecedented photometric precision of the Kepler Spacecraft, significant systematic and stochastic errors on transit signal levels are observable in the Kepler photometric data. These errors, which include discontinuities,…

Spins in solid-state materials, molecules, and other chemical systems have the potential to impact the fields of quantum sensing, communication, simulation, and computing. In particular, color centers in diamond, such as negatively charged…

Space-based projects are providing a wealth of high-quality asteroseismic data, including frequencies for a large number of stars showing solar-like oscillations. These data open the prospect for precise determinations of key stellar…

太阳与恒星天体物理 · 物理学 2015-05-20 P. -O. Quirion , J. Christensen-Dalsgaard , T. Arentoft

% context {Nano-diamonds are an enticing and enigmatic dust component yet their origin is still unclear. They have been unequivocally detected in only a few astronomical objects, yet they are the most abundant of the pre-solar grains, both…

星系天体物理 · 物理学 2022-01-26 A. P. Jones , Nathalie Ysard

Nested sampling is an increasingly popular technique for Bayesian computation, in particular for multimodal, degenerate problems of moderate to high dimensionality. Without appropriate settings, however, nested sampling software may fail to…

统计计算 · 统计学 2019-01-23 Edward Higson , Will Handley , Mike Hobson , Anthony Lasenby

Metallicity can be measured by analyzing the spectra in the X-ray region and comparing the flux in spectral lines to the flux in the underlying Bremsstrahlung continuum. In this paper we propose new Bayesian methods which directly model the…

天体物理学 · 物理学 2007-05-23 Epaminondas Sourlas , David van Dyk , Vinay Kashyap , Jeremy Drake , Deron Pease

New magnetometry techniques based on Nitrogen Vacancy (NV) defects in diamond have received much attention of late as a means to probe nanoscale magnetic environments. The sensitivity of a single NV magnetometer is primarily determined by…

量子物理 · 物理学 2015-05-18 Liam T. Hall , Charles D. Hill , Jared H. Cole , Lloyd C. L. Hollenberg