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Related papers: Energy Absorption Interferometry

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In this article we have shown that the atomic states can be engineered by tunning the coupling Rabi frequency for a system with $\mathcal{N}$-type configuration. Electromagnetically induced transparency (EIT), Electromagnetically induced…

Interferometric methods, renowned for their reliability and precision, play a vital role in phase imaging. Interferometry typically requires high coherence and stability between the measured and the reference beam. The presence of rapid…

Absorption and emission of light is studied theoretically for excited atoms in coherent superposition of states subjected to isolated attosecond pulses in the extreme ultraviolet range. A gauge invariant formulation of transient absorption…

Atomic Physics · Physics 2023-05-24 Axel Stenquist , Felipe Zapata , Jan Marcus Dahlström

Edge illumination (EI) is a non-interferometric X-ray phase contrast imaging (XPCI) method that has been successfully implemented with conventional polychromatic sources, thanks to its relaxed coherence requirements. Like other XPCI…

Medical Physics · Physics 2017-09-27 G. K. Kallon , F. A. Vittoria , M. Endrizzi , P. C. Diemoz , C. K. Hagen , A. Zamir , D. Basta , A. Olivo

Electrochemical impedance spectroscopy (EIS) is an effective method for studying the electrochemical systems. The interpretation of EIS is the biggest challenge in this technology, which requires reasonable modeling. However, the modeling…

Data Analysis, Statistics and Probability · Physics 2019-07-04 Shan Zhu , Xinyang Sun , Yuxuan Wang , Naiqin Zhao , Junwei Sha

We study the absorption and dispersion properties of a weak tunable probe field in a four-level Y-type atomic system driven by two strong laser (coupling) fields within the framework of density matrix formalism. It is found that the probe…

Atomic Physics · Physics 2014-03-12 L. Safari , D. Iablonskyi , F. Fratini

A method to interpret probe spectra of driven degenerate atomic systems is discussed. The dressed-atom multiphoton spectroscopy (DAMS) is based on a dressing of the atomic system with the strong coupling field, followed by a perturbative…

Quantum Physics · Physics 2015-05-19 H. -S. Chou , J. Evers

Considering the variability of amplitude and phase patterns in electrocardiogram (ECG) signals due to cardiac activity and individual differences, existing entropy-based studies have not fully utilized these two patterns and lack…

Signal Processing · Electrical Eng. & Systems 2024-04-16 Shuaicong Hu , Yanan Wang , Jian Liu , Jingyu Lin , Shengmei Qin , Zhenning Nie , Zhifeng Yao , Wenjie Cai , Cuiwei Yang

We present design equations for a two-element closely-spaced interferometer for measuring the noise temperature of a uniform sky. Such an interferometer is useful for observing highly diffuse radio sources such as the Milky Way and…

Instrumentation and Methods for Astrophysics · Physics 2020-09-11 Adrian T. Sutinjo , Benjamin McKinley , Leonid Belostotski , Daniel C. X. Ung , Jishnu N. Thekkeppattu

An excitonic insulator (EI) is an unconventional quantum phase of matter in which excitons, bound pairs of electrons and holes, undergo Bose--Einstein condensation, forming a macroscopic coherent state. While its existence was first…

Strongly Correlated Electrons · Physics 2020-06-18 Benjamin Remez , Nigel R. Cooper

Sequential maximization of expected improvement (EI) is one of the most widely used policies in Bayesian optimization because of its simplicity and ability to handle noisy observations. In particular, the improvement function often uses the…

Machine Learning · Computer Science 2023-11-15 Han Zhou , Xingchen Ma , Matthew B Blaschko

Text-guided image generation has witnessed unprecedented progress due to the development of diffusion models. Beyond text and image, sound is a vital element within the sphere of human perception, offering vivid representations and…

Graphics · Computer Science 2023-06-21 Yue Yang , Kaipeng Zhang , Yuying Ge , Wenqi Shao , Zeyue Xue , Yu Qiao , Ping Luo

The equivalent external noise temperature of time-varying antennas is studied using the concept of cross-frequency effective aperture, which quantifies the intermodulation conversion of external noise across the frequency spectrum into a…

Systems and Control · Electrical Eng. & Systems 2024-06-13 Kurt Schab , K. C. Kerby-Patel

This study discusses acoustic dissipation, which contributes to inaccuracies in impedance tube measurements. To improve the accuracy of these measurements, this paper introduces a transfer function model that integrates diverse dissipation…

Classical Physics · Physics 2024-03-27 Ziqi Chen , Ning Xiang

A $\Lambda$-system in $D_2$ line transition of the $^{87}Rb$ atom has been investigated for quantum interference effects for different configurations of coupling field. With a travelling wave coupling field (co-propagating with probe…

Atomic Physics · Physics 2018-10-17 Charu Mishra , A. Chakraborty , Vivek Singh , S. P. Ram , V. B. Tiwari , S. R. Mishra

An interesting case of the well-known Dataset Shift Problem is the classification of Electroencephalogram (EEG) signals in the context of Brain-Computer Interface (BCI). The non-stationarity of EEG signals can lead to poor generalisation…

Machine Learning · Computer Science 2024-05-21 Andrea Apicella , Francesco Isgrò , Andrea Pollastro , Roberto Prevete

We combine classical heuristics with partial shadow tomography to enable efficient protocols for extracting information from correlated ab initio electronic systems encoded on quantum devices. By proposing the use of a correlation energy…

This paper describes MAIA, a Multimodal Automated Interpretability Agent. MAIA is a system that uses neural models to automate neural model understanding tasks like feature interpretation and failure mode discovery. It equips a pre-trained…

Artificial Intelligence · Computer Science 2025-02-13 Tamar Rott Shaham , Sarah Schwettmann , Franklin Wang , Achyuta Rajaram , Evan Hernandez , Jacob Andreas , Antonio Torralba

We propose a fundamentally new design strategy of light-pulsed atom interferometry (LPAI) with a single atomic beam splitter. A traditional $\pi/2$-pulse Raman beam is employed to render a small momentum transfer at the initial state. After…

Quantum Physics · Physics 2025-10-31 Yinghang Jiang , Jiguo Wu , Junfan Zhu , Rongchun Ge , Zhiyou Zhang

The measurement and analysis of Electrodermal Activity (EDA) offers applications in diverse areas ranging from market research, to seizure detection, to human stress analysis. Unfortunately, the analysis of EDA signals is made difficult by…

Machine Learning · Statistics 2017-02-01 Swayambhoo Jain , Urvashi Oswal , Kevin S. Xu , Brian Eriksson , Jarvis Haupt