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Recent developments of the AC-calorimetric technique adapted for the needs of high pressure experiments are discussed. A semi-quantitative measurement of the specific heat with a Bridgman-type of pressure cell as well as a diamond anvil…

Strongly Correlated Electrons · Physics 2015-06-24 Heribert Wilhelm

We describe the design and calibration of an external cryogenic blackbody calibrator used for the first two flights of the Absolute Radiometer for Cosmology, Astrophysics, and Diffuse Emission (ARCADE) instrument. The calibrator consists of…

Astrophysics · Physics 2009-11-10 A. Kogut , E. Wollack , D. J. Fixsen , M. Limon , P. Mirel , S. Levin , M. Seiffert , P. M. Lubin

The Monte Carlo calculations of the Moliere radius (RM) for some homogeneous and heterogeneous media used in electromagnetic calorimetry in the energy range from 50 MeV to 10 GeV are presented in detail. The obtained results, the…

Instrumentation and Detectors · Physics 2021-12-15 O. P. Gavrishchuk , V. E. Kovtun , T. V. Malykhina

We introduce a microwave bolometer aimed at high-quantum-efficiency detection of wave packet energy within the framework of circuit quantum electrodynamics, the ultimate goal being single microwave photon detection. We measure the…

Mesoscale and Nanoscale Physics · Physics 2014-09-11 J. Govenius , R. E. Lake , K. Y. Tan , V. Pietilä , J. K. Julin , I. J. Maasilta , P. Virtanen , M. Möttönen

In bosonic quantum metrology, the estimate of a loss parameter is typically performed by means of pure states, such as coherent, squeezed or entangled states, while mixed thermal probes are discarded for their inferior performance. Here we…

Quantum Physics · Physics 2018-10-17 Gaetana Spedalieri , Cosmo Lupo , Samuel L. Braunstein , Stefano Pirandola

Several cosmological measurements have attained significant levels of maturity and accuracy over the last decade. Continuing this trend, future observations promise measurements of the statistics of the cosmic mass distribution at an…

Astrophysics · Physics 2008-11-26 Salman Habib , Katrin Heitmann , David Higdon , Charles Nakhleh , Brian Williams

Accurate covariance matrices are required for a reliable estimation of cosmological parameters from pseudo-power spectrum estimators. In this work, we focus on the analytical calculation of covariance matrices. We consider the case of…

Cosmology and Nongalactic Astrophysics · Physics 2022-12-08 Étienne Camphuis , Karim Benabed , Silvia Galli , Éric Hivon , Marc Lilley

Quantum illumination (QI) theoretically promises up to a 6dB error-exponent advantage in target detection over the best classical protocol. The advantage is maximised by a regime which includes a very high background, which occurs naturally…

Quantum Physics · Physics 2022-05-25 Athena Karsa , Stefano Pirandola

The Primordial Inflation Explorer (PIXIE) is an Explorer-class mission concept to measure cosmological signals from both linear polarization of the cosmic microwave background and spectral distortions from a perfect blackbody. The targeted…

Instrumentation and Methods for Astrophysics · Physics 2021-03-08 A. Kogut , D. J. Fixsen

A temperature controlled 1 {\Omega}-10 k{\Omega} standard Resistors transportable setup was developed at National Institute of Metrological Research, (INRIM) for the calibration and adjustment of multifunction electrical instruments. The…

Instrumentation and Detectors · Physics 2015-05-19 P. P. Capra , F. Galliana

We present a method for fast optimal estimation of the temperature angular power spectrum from observations of the cosmic microwave background. We employ a Hamiltonian Monte Carlo (HMC) sampler to obtain samples from the posterior…

Astrophysics · Physics 2009-11-13 J. F. Taylor , M. A. J. Ashdown , M. P. Hobson

We provide a detailed description of a general procedure by which a nano/micro-mechanical resonator can be calibrated using its thermal motion. A brief introduction to the equations of motion for such a resonator is presented, followed by a…

Mesoscale and Nanoscale Physics · Physics 2013-10-24 B. D. Hauer , C. Doolin , K. S. D. Beach , J. P. Davis

The optimal design of power converters requires accurate knowledge of the dissipation elements of its system to achieve the desired performance and security requirements. Calorimetric methods have surpassed classical electrical methods for…

Systems and Control · Electrical Eng. & Systems 2023-11-06 Jose Miguel Sanz-Alcaine , Eduardo Sebastian , Francisco Jose Perez-Cebolla , Asier Arruti , Carlos Bernal-Ruiz , Iosu Aizpuru

High-fidelity control of qubits requires precisely tuned control parameters. Typically, these parameters are found through a series of bootstrapped calibration experiments which successively acquire more accurate information about a…

Quantum Physics · Physics 2018-03-09 Julian Kelly , Peter O'Malley , Matthew Neeley , Hartmut Neven , John M. Martinis

The Very Large Area Gamma-ray Space Telescope Pathfinder (VLAST-P), as the technology validation satellite for the VLAST mission, is designed to observe high-energy solar bursts on orbit. The CsI electromagnetic calorimeter (ECAL) is one of…

High Energy Physics - Experiment · Physics 2026-03-10 Jiaxuan Wang , Zhen Wang , Borong Peng , Renjun Wang , Yunlong Zhang , Zhongtao Shen , Yifeng Wei , Dengyi Chen , Xiang Li , Yiming Hu , Jianhua Guo

Atoms and simple molecules are excellent candidates for new standards and sensors because they are both all identical and their properties are determined by the immutable laws of quantum physics. Here, we introduce the concept of building a…

We introduce a nanocalorimetric technique based on microsecond-pulsed heating (\mu s-PHnC) that enables high-sensitivity, quasi-isothermal heat capacity measurements on nanoscale samples. Such resolution is critical for exploring…

We describe the electromagnetic calorimeter built for the GRAAL apparatus at the ESRF. Its monitoring system is presented in detail. Results from tests and the performance obtained during the first GRAAL experiments are given. The energy…

We present the technical details of a broadband microwave spectrometer for measuring the complex conductance of thin films covering the range from 50 MHz up to 16 GHz in the temperature range 300 mK to 6 K and at applied magnetic fields up…

Instrumentation and Detectors · Physics 2015-06-18 Wei Liu , LiDong Pan , N. P. Armitage

The read-out of a microwave qubit state occurs using an amplification chain that enlarges the quantum state to a signal detectable with a classical measurement apparatus. However, at what point in this process is the quantum state really…

Quantum Physics · Physics 2021-01-15 T. H. A. van der Reep , L. Rademaker , X. G. A. Le Large , R. H. Guis , T. H. Oosterkamp
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