Journal of Low Temperature Physics最新文献_第4页

Optimization of an Optical Testbed for Characterization of EXCLAIM µ-Spec Integrated Spectrometers EXCLAIM微规格集成光谱仪光学测试平台的优化

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-11-08 DOI: 10.1007/s10909-024-03240-9

Maryam Rahmani, Emily M. Barrentine, Eric R. Switzer, Alyssa Barlis, Ari D. Brown, Giuseppe Cataldo, Jake A. Connors, Negar Ehsan, Thomas M. Essinger-Hileman, Henry Grant, James Hays-Wehle, Wen-Ting Hsieh, Vilem Mikula, S. Harvey Moseley, Omid Noroozian, Manuel A. Quijada, Jessica Patel, Thomas R. Stevenson, Carole Tucker, Kongpop U-Yen, Carolyn G. Volpert, Edward J. Wollack

{"title":"Optimization of an Optical Testbed for Characterization of EXCLAIM µ-Spec Integrated Spectrometers","authors":"Maryam Rahmani, Emily M. Barrentine, Eric R. Switzer, Alyssa Barlis, Ari D. Brown, Giuseppe Cataldo, Jake A. Connors, Negar Ehsan, Thomas M. Essinger-Hileman, Henry Grant, James Hays-Wehle, Wen-Ting Hsieh, Vilem Mikula, S. Harvey Moseley, Omid Noroozian, Manuel A. Quijada, Jessica Patel, Thomas R. Stevenson, Carole Tucker, Kongpop U-Yen, Carolyn G. Volpert, Edward J. Wollack","doi":"10.1007/s10909-024-03240-9","DOIUrl":"10.1007/s10909-024-03240-9","url":null,"abstract":"<div><p>We describe a testbed to characterize the optical response of compact superconducting on-chip spectrometers in development for the EXperiment for Cryogenic Large-Aperture Intensity Mapping (EXCLAIM) mission. EXCLAIM is a balloon-borne far-infrared experiment to probe the CO and CII emission lines in galaxies from redshift 3.5 to the present. The spectrometer, called µ-Spec, comprises a diffraction grating on a silicon chip coupled to kinetic inductance detectors (KIDs) read out via a single microwave feedline. We use a prototype spectrometer for EXCLAIM to demonstrate our ability to characterize the spectrometer’s spectral response using a photomixer source. We utilize an on-chip reference detector to remove the spectral structure introduced by the off-chip optics and a silicon etalon to calibrate the absolute frequency.</p></div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":"218 Part 5","pages":"65 - 73"},"PeriodicalIF":1.1,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and Improvement of Quench Protection for A 3 T MRI Superconducting Magnet

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-11-07 DOI: 10.1007/s10909-024-03238-3

Wangnan Shang, Yunhao Mei, Shige Yang, Bohan Tang, Shili Jiang, Hui Yu, Bowen Xie, Guangli Kuang, Donghui Jiang

{"title":"Design and Improvement of Quench Protection for A 3 T MRI Superconducting Magnet","authors":"Wangnan Shang, Yunhao Mei, Shige Yang, Bohan Tang, Shili Jiang, Hui Yu, Bowen Xie, Guangli Kuang, Donghui Jiang","doi":"10.1007/s10909-024-03238-3","DOIUrl":"10.1007/s10909-024-03238-3","url":null,"abstract":"<div><p>In recent years, global investment in magnetic resonance imaging (MRI) has surged, with 3 T MRI technology overtaking 1.5 T as the standard in hospitals gradually. A combination of linear programming, genetic algorithms, and nonlinear programming was employed to design an actively shielded 3 T superconducting MRI magnet system. This magnet consists of seven main coils and two shielding coils, achieving a magnetic field with a peak-to-peak inhomogeneity of 10 ppm within a 50-cm-diameter spherical volume (DSV). To address the risk of quench in superconducting magnets, which can lead to damage due to excessive temperature, voltage, and stress, a quench protection system is crucial. The designed system segments the coils for protection, using diode pairs and shunt resistors to manage the quench. Initial simulations indicated that temperature rises and voltages were within safe limits, but some coils were slow to quench or did not quench at all, risking burnout. To mitigate this, quench propagation heating plates were added to increase the quench speed. Updated simulations showed rapid quench across all coils and a significant reduction in hot spot temperatures and peak voltages.</p></div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":"218 3-4","pages":"146 - 165"},"PeriodicalIF":1.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of Fractional Electron Capture Probabilities of 59Ni by Means of Metallic Magnetic Calorimeters 用金属磁量热计测定59Ni的分数电子捕获概率

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-11-06 DOI: 10.1007/s10909-024-03235-6

Arshjot Kaur, Lucille Chambon, Martin Loidl, Valérie Lourenço, Matias Rodrigues, Mostafa-Lokmann Zahir

引用次数: 0

Investigation of Superconducting Quantum Interference Readout Electronics Based on Self-Feedback Differential Low-Noise Amplifier

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-11-04 DOI: 10.1007/s10909-024-03233-8

Zhenyu Yang, Changwei Zhai, Hongxing Yang, Jianting Zhao, Yunfeng Lu

引用次数: 0

Power Consumption in SQUID Multiplexers for Space-Based Applications 基于空间应用的SQUID多路复用器的功耗

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-10-23 DOI: 10.1007/s10909-024-03228-5

J. van der Kuur, M. Kiviranta, G. de Lange, D. Vaccaro, M. de Wit, L. G. Gottardi, H. A. Akamatsu, B. D. Jackson, K. Nagayoshi, M. P. Bruijn, E. Taralli, K. Ravensberg, J. W. A. den Herder

{"title":"Power Consumption in SQUID Multiplexers for Space-Based Applications","authors":"J. van der Kuur, M. Kiviranta, G. de Lange, D. Vaccaro, M. de Wit, L. G. Gottardi, H. A. Akamatsu, B. D. Jackson, K. Nagayoshi, M. P. Bruijn, E. Taralli, K. Ravensberg, J. W. A. den Herder","doi":"10.1007/s10909-024-03228-5","DOIUrl":"10.1007/s10909-024-03228-5","url":null,"abstract":"<div><p>Several proposed space-based X-ray observatories apply TES-based micro-calorimeters as energy-dispersive imaging detector. The number of independently readout pixels is an important figure of merit for the scientific yield of such instruments. Design studies have shown that the power consumption of the SQUID readout is one of the driving design parameters which limits the maximum number of pixels which can be accommodated. Different multiplexing schemes, each with different properties and multiplexing factors have been proposed and demonstrated for the readout of the TES-based detectors. In an effort to estimate how the different readout multiplexing schemes differ in scalability for future space-based applications, we have made a comparison of the reported power consumption of the main multiplexing schemes currently under consideration for different space-based telescopes, i.e. time-domain multiplexing, frequency-domain multiplexing, and microwave SQUID multiplexing. It was found that, despite the different architectures and multiplexing factors, the power consumption per pixel at cryogenic temperatures is rather similar. We will analyze the origin of this phenomenon, and discuss directions of development to further improve on this number.</p></div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":"218 Part 5","pages":"1 - 11"},"PeriodicalIF":1.1,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142995688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced Stability of Self-Bound Droplets in Quasi-One Dimension via Interspecies Quantum Fluctuations in Ultracold Bose–Bose Mixtures 通过超冷玻色-玻色混合物中的种间量子波动增强准一维自结合液滴的稳定性

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-10-23 DOI: 10.1007/s10909-024-03229-4

A. Mehedi, M. Benarous, A. Hocine

引用次数: 0

Superconductivity in Alkali Metal-Deposited Monolayer BC: MBC (M = Na, K) 碱金属沉积单层 BC 的超导性：MBC（M = Na、K）

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-10-22 DOI: 10.1007/s10909-024-03227-6

Ya-Ping Li, Liu Yang, Hao-Dong Liu, Shu-Ying Shang, Ying-Jie Chen

{"title":"Superconductivity in Alkali Metal-Deposited Monolayer BC: MBC (M = Na, K)","authors":"Ya-Ping Li, Liu Yang, Hao-Dong Liu, Shu-Ying Shang, Ying-Jie Chen","doi":"10.1007/s10909-024-03227-6","DOIUrl":"10.1007/s10909-024-03227-6","url":null,"abstract":"<div><p>In recent years, as two-dimensional (2D) materials have been widely used in electronic devices, searching for 2D high superconducting transition temperature (<span>(T_{c})</span>) superconductors has also attracted great attentions. In this work, based on first-principles calculations and Eliashberg equation, the electronic structure, electron-phonon coupling (EPC) and possible superconductivity of alkali metal-deposited monolayer BC: <i>M</i>BC (<i>M</i> = Na, K) are studied. The results show that <i>M</i>BC (<i>M</i> = Na, K) are metallic and potential superconductors. The calculated EPC constants of <i>M</i>BC (<i>M</i> = Na, K) are 0.97 and 1.48, respectively. The strong coupling of <i>M</i>BC (<i>M</i> = Na, K) mainly origins from the coupling between electrons with the in-plane vibration modes of C and B atoms. The <span>(T_{c})</span> of <i>M</i>BC (<i>M </i>= Na, K) are 34.1 K and 41.7 K, respectively, and the <span>(T_{c})</span> of NaBC can be increased to 45.6 K under 2% biaxial tensile strain, and the <span>(T_{c})</span> of KBC can be boosted to 53.8 K under 1% biaxial tensile strain. It is anticipated that the predicted monolayer <i>M</i>BC (<i>M</i> = Na, K) and its strained cases can be realized in future experiments.</p></div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":"217 5-6","pages":"735 - 748"},"PeriodicalIF":1.1,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the Superstatistical Properties of the Klein-Gordon Oscillator Using Gamma, Log, and F Distributions 利用伽马、对数和 F 分布论克莱因-戈登振荡器的超统计特性

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-10-21 DOI: 10.1007/s10909-024-03224-9

Soumia Siouane, Abdelmalek Boumali

{"title":"On the Superstatistical Properties of the Klein-Gordon Oscillator Using Gamma, Log, and F Distributions","authors":"Soumia Siouane, Abdelmalek Boumali","doi":"10.1007/s10909-024-03224-9","DOIUrl":"10.1007/s10909-024-03224-9","url":null,"abstract":"<div><p>In this study, we investigate the thermal properties of the relativistic Klein-Gordon oscillator with non-minimal coupling in one, two, and three dimensions within the framework of superstatistics theory. We focus on three distinct distributions: Gamma, Log-Normal, and F-distributions, each described by a specific probability density function <span>(f(beta ))</span>. To compute the partition function, we apply the Euler-MacLaurin formula, incorporating the low-energy asymptotics approximation of superstatistics and accounting for the remainder term <span>(R_{i})</span>. Our study involves a detailed analysis of how entropy <span>(S)</span> and specific heat <span>(C_{v})</span> vary with temperature <span>(1/beta)</span> and the universal parameter <span>(q)</span>, based on the derived partition functions. The variations in these thermodynamic quantities are explored across different dimensionalities and statistical frameworks, providing insights into the interplay between statistical distributions and the thermal dynamics of the system. This approach allows us to understand the influence of non-equilibrium conditions and fluctuating temperature fields on the behavior of relativistic quantum systems. By extending the analysis to multiple dimensions and distribution types, we aim to offer a comprehensive view of how superstatistical distributions affect the thermodynamic properties of the Klein-Gordon oscillator, thus contributing to the broader understanding of thermal dynamics in relativistic systems.</p></div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":"217 Part 4","pages":"598 - 617"},"PeriodicalIF":1.1,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Magnetic Microbolometer Detection Chain: A Proposed Detection System to Observe the B Modes of the Cosmic Microwave Background 磁性微测辐射计探测链：观测宇宙微波背景 B 模式的拟议探测系统

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-10-21 DOI: 10.1007/s10909-024-03230-x

M. Platino, M. E. García Redondo, L. P. Ferreyro, J. M. Salum, N. A. Müller, J. D. Bonilla-Neira, T. Muscheid, R. Gartmann, J. M. Geria, J. J. Bonaparte, D. A. Almela, L. E. Ardila-Pérez, M. R. Hampel, A. E. Fuster, O. Sander, M. Weber, A. Etchegoyen

{"title":"The Magnetic Microbolometer Detection Chain: A Proposed Detection System to Observe the B Modes of the Cosmic Microwave Background","authors":"M. Platino, M. E. García Redondo, L. P. Ferreyro, J. M. Salum, N. A. Müller, J. D. Bonilla-Neira, T. Muscheid, R. Gartmann, J. M. Geria, J. J. Bonaparte, D. A. Almela, L. E. Ardila-Pérez, M. R. Hampel, A. E. Fuster, O. Sander, M. Weber, A. Etchegoyen","doi":"10.1007/s10909-024-03230-x","DOIUrl":"10.1007/s10909-024-03230-x","url":null,"abstract":"<div><p>Several experiments are currently carried out to measure the magnitude of the B mode polarization of the cosmic microwave background (CMB). It is a strong indicator of the presence of gravitational waves from the early universe inflationary epoch. As the average variations of the B mode components of the CMB are expected to be of the order of a few tens of nK or below, the detection of these polarized signals requires an ultrasensitive system. This article is focused on CMB detection at frequencies around the 150 GHz band of the electromagnetic spectrum, near the peak of the CMB 2.7K blackbody band of the EM spectrum. We propose a readout system for CMB cryogenic detection based on a software-defined radio (SDR) that uses frequency division multiplexing (FDM), a Goertzel channelizer and a radio frequency microwave SQUID multiplexer (<span>(mu)</span>MUX) working at the cryogenic temperatures of <span>(approx)</span> 320mK. These interfaces can be used to read an array of 1024 magnetic microbolometers (MMBs) as detectors that are photon-limited for CMB detection in the band of interest. As part of the requirements for these measurements, we introduce a design of the detection and read out chain and show its expected performance and potential implementation. The proposed system can read the desired number of detectors from an array in a modular way, which allows future expansions, and its frequency division multiplexing system improves the cooling capacity of the cryostat by minimizing the amount of active cryogenic electronics. In this article, we first describe this proposed FDM readout chain and then present noise measurements of a test implementation.</p></div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":"217 5-6","pages":"762 - 771"},"PeriodicalIF":1.1,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tutorial: From Topology to Hall Effects—Implications of Berry Phase Physics 教程：从拓扑学到霍尔效应--贝里相物理学的启示

IF 1.1 3区物理与天体物理

Journal of Low Temperature Physics Pub Date : 2024-10-17 DOI: 10.1007/s10909-024-03219-6

Nico Sprinkart, Elke Scheer, Angelo Di Bernardo

{"title":"Tutorial: From Topology to Hall Effects—Implications of Berry Phase Physics","authors":"Nico Sprinkart, Elke Scheer, Angelo Di Bernardo","doi":"10.1007/s10909-024-03219-6","DOIUrl":"10.1007/s10909-024-03219-6","url":null,"abstract":"<div><p>The Berry phase is a fundamental concept in quantum mechanics with profound implications for understanding topological properties of quantum systems. This tutorial provides a comprehensive introduction to the Berry phase, beginning with the essential mathematical framework required to grasp its significance. We explore the intrinsic link between the emergence of a non-trivial Berry phase and the presence of topological characteristics in quantum systems, showing the connection between the Berry phase and the band structure as well as the phase’s gauge-invariant nature during cyclic evolutions. The tutorial delves into various topological effects arising from the Berry phase, such as the quantum, anomalous, and spin Hall effects, which exemplify how these quantum phases manifest in observable phenomena. We then extend our discussion to cover the transport properties of topological insulators, elucidating their unique behaviour rooted in the Berry phase physics. This tutorial aims at equipping its readers with a robust understanding of the basic theory underlying the Berry phase and of its pivotal role in the realm of topological quantum phenomena.</p></div>","PeriodicalId":641,"journal":{"name":"Journal of Low Temperature Physics","volume":"217 5-6","pages":"686 - 719"},"PeriodicalIF":1.1,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10909-024-03219-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0