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We report multipronged progress on the stochastic averaging approach to numerical analytic continuation of quantum Monte Carlo data. With the sampled spectrum parametrized with delta-functions in continuous frequency space, a calculation of…

Strongly Correlated Electrons · Physics 2023-01-11 Hui Shao , Anders W. Sandvik

Coherent nonlinear optical micro-spectroscopy is a frequently used tool in modern material science, as it is sensitive to many different local observables, which comprise, among others, crystal symmetry and vibrational properties. The…

Optics · Physics 2023-04-12 Kai J. Spychala , Zeeshan H. Amber , Lukas M. Eng , Michael Rüsing

Interferometric methods have been recently investigated to achieve sub-Rayleigh imaging and precision measurements of faint incoherent sources up to the ultimate quantum limit. Here we consider single-photon imaging of two point-like…

Quantum Physics · Physics 2024-02-28 Luigi Santamaria Amato , Fabrizio Sgobba , Cosmo Lupo

The development of detectors with a high time resolution has been pivotal to our comprehension of neutron stars and the accurate measurement of their properties. While high-time resolution astronomy has become a standard in the radio and…

High Energy Astrophysical Phenomena · Physics 2024-06-06 Giulia Illiano , Alessandro Papitto , Filippo Ambrosino , Arianna Miraval Zanon , Riccardo La Placa , Caterina Ballocco

A Python package for the calculation of spectrograms with optimized time and frequency resolution for application in the analysis of numerical simulations on ultrashort pulse propagation is presented. Gabor's uncertainty principle prevents…

Computational Physics · Physics 2018-09-05 O. Melchert , B. Roth , U. Morgner , A. Demircan

Following work done in the energy region above 100 keV, the high-precision calibration of a co-axial high-purity germanium detector has been continued in the energy region below 100 keV. Previous measurements or Monte-Carlo simulations have…

Instrumentation and Detectors · Physics 2020-04-08 B. Blank , P. Ascher , M. Gerbaux , J. Giovinazzo , S. Grevy , T. Kurtukian Nieto , M. Versteegen , J. C. Thomas

There exists an inordinate amount of spectral data in both public and private astronomical archives which remain severely under-utilised. The lack of reliable open-source tools for analysing large volumes of spectra contributes to this…

Instrumentation and Methods for Astrophysics · Physics 2016-04-06 Andrew R Casey

In the paper a recent enhancement to the open source package SfePy (Simple Finite Elements in Python, http://sfepy.org) is introduced, namely the addition of another numerical discretization scheme, the isogeometric analysis, to the…

Mathematical Software · Computer Science 2014-12-22 Robert Cimrman

Scanning probe microscopy (SPM) is a valuable technique by which one can investigate the physical characteristics of the surfaces of materials. However, its widespread use is hampered by the time-consuming nature of running an experiment…

Instrumentation and Detectors · Physics 2025-09-03 Nicholas J. Sullivan , Julio J. Valdés , Kirk H. Bevan , Peter Grutter

High-precision spectrographs play a key role in exoplanet searches and Doppler asteroseismology using the radial velocity technique. The 1 m/s level of precision requires very high stability and uniformity of the illumination of the…

Instrumentation and Methods for Astrophysics · Physics 2015-06-12 F. Bouchy , R. F. Diaz , G. Hébrard , L. Arnold , I. Boisse , X. Delfosse , S. Perruchot , A. Santerne

Optical photothermal microscopy is a powerful, emerging method that overcomes the diffraction limit in infrared hyperspectral imaging by utilizing a visible probe laser beam to detect local temperature-induced modulation at the visible…

Precise temperature measurements on systems of few ultracold atoms is of paramount importance in quantum technologies, but can be very resource-intensive. Here, we put forward an adaptive Bayesian framework that substantially boosts the…

Research in semiconductor physics has advanced to the study of two-dimensional (2D) materials where the surface controls electronic transport. A scanning probe microscope (SPM) is an ideal tool to image electronic motion in these devices by…

Mesoscale and Nanoscale Physics · Physics 2017-02-01 Sagar Bhandari , Robert M. Westervelt

The Herschel Common Science System (HCSS) (Ott et al. 2006) (Ott & Science Ground Segment Consortium 2010) is a substantial Java software package, accompanying the development of the Herschel Mission (Pilbratt et al. 2010), supporting all…

Instrumentation and Methods for Astrophysics · Physics 2015-03-17 Bernhard Schulz

In modern-day astronomy, near-infrared, optical, and ultraviolet spectroscopy are indispensable for studying a wide range of phenomena, from measuring black hole masses to analyzing chemical abundances in stellar atmospheres. However,…

Instrumentation and Methods for Astrophysics · Physics 2025-07-21 Raniere de Menezes , Francesco Massaro , Michela Negro , Claudia M. Raiteri , Harold Peña-Herazo , Jose A. Acosta-Pulido

The advancement of observational technologies and software for processing and visualizing spectro-polarimetric microwave data obtained with the RATAN-600 radio telescope opens new opportunities for studying the physical characteristics of…

Solar and Stellar Astrophysics · Physics 2024-12-12 I. Knyazeva , I. Lysov , E. Kurochkin , A. Shendrik , D. Derkach , N. Makarenko

Hyperspectroscopy is a new method of surface image taking, providing simultaneously high position and spectral resolutions which allow one to make some conclusions about chemical compositions of the surfaces. We are now studying…

Instrumentation and Detectors · Physics 2016-11-18 I. Rodionov , J-M. Bidault , I. Crotty , P. Fonte , F. Galy , V. Peskov , O. Zanette

The temperature of a nonneutral plasma confined in a Penning-Malmberg trap can be determined by slowly lowering one side of the trap's electrostatic axial confinement barrier; the temperature is inferred from the rate at which particles…

Instrumentation and Detectors · Physics 2020-10-26 E. D. Hunter , J. Fajans , N. A. Lewis , A. P. Povilus , C. Sierra , C. So , D. Zimmer

Low background gamma spectrometry employing HPGe detectors is a sensitive technique for measuring low-level radioactivity in environmental applications, material screening, and for rare decay searches. This work presents spectroscopic…

Instrumentation and Detectors · Physics 2023-08-24 Swati Thakur , Soni Devi , Sanjeet S. Kaintura , Katyayni Tiwari , Pushpendra P. Singh

Accurately predicting the performance of coronagraphs and tolerancing optical surfaces for high-contrast imaging requires a detailed accounting of diffraction effects. Unlike simple Fraunhofer diffraction modeling, near and far-field…

Instrumentation and Methods for Astrophysics · Physics 2018-12-17 Ewan S. Douglas , Marshall D. Perrin
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