AVS quantum science最新文献

Effects of multi-photon states in the calibration of single-photon detectors based on a portable bi-photon source. 多光子态对基于便携式双光子源的单光子探测器校准的影响。

IF 4.2

AVS quantum science Pub Date : 2024-12-01 Epub Date: 2024-11-18 DOI: 10.1116/5.0233335

S Pani, D Earl, F E Becerra

{"title":"Effects of multi-photon states in the calibration of single-photon detectors based on a portable bi-photon source.","authors":"S Pani, D Earl, F E Becerra","doi":"10.1116/5.0233335","DOIUrl":"10.1116/5.0233335","url":null,"abstract":"<p><p>Single-photon detectors (SPDs) are ubiquitous in many protocols for quantum imaging, sensing, and communications. Many of these protocols critically depend on the precise knowledge of their detection efficiency. A method for the calibration of SPDs based on sources of quantum-correlated photon pairs uses single-photon detection to generate heralded single photons, which can be used as a standard of radiation at the single-photon level. These heralded photons then allow for precise calibration of SPDs in absolute terms. In this work, we investigate the absolute calibration of avalanche photodiodes based on a portable, commercial bi-photon source, and investigate the effects of multi-photon events from the spontaneous parametric down conversion (SPDC) process in these sources. We show that the multi-photon character of the bi-photon source, together with system losses, has a significant impact on the achievable accuracy for the calibration of SPDs. However, modeling the expected photon counting statistics from the squeezed vacuum in the SPDC process allows for accurate estimation of the efficiency of SPDs, assuming that the system losses are known. This study provides essential information for the design and optimization of portable bi-photon sources for their application in on-site calibration of SPDs with high accuracy, without requiring any other reference standard.</p>","PeriodicalId":93525,"journal":{"name":"AVS quantum science","volume":"6 4","pages":"045003"},"PeriodicalIF":4.2,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11577339/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142689817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sub-nanosecond coherent optical manipulation of a single aromatic molecule at cryogenic temperature 在低温条件下对单个芳香族分子进行亚纳秒级相干光操纵

AVS quantum science Pub Date : 2023-12-01 DOI: 10.1116/5.0180689

Q. Deplano, P. Tamarat, B. Lounis, Jean-Baptiste Trebbia

引用次数: 0

Single-photon-based clock analysis and recovery in quantum key distribution 量子密钥分发中基于单光子的时钟分析和恢复

AVS quantum science Pub Date : 2023-11-23 DOI: 10.1116/5.0167549

M. Zahidy, D. Ribezzo, R. Muller, J. Riebesehl, A. Zavatta, M. Galili, L. Oxenløwe, Davide Bacco

引用次数: 0

Estimation of the number of single-photon emitters for multiple fluorophores with the same spectral signature 具有相同光谱特征的多个荧光团的单光子发射体数量的估计

AVS quantum science Pub Date : 2023-11-14 DOI: 10.1116/5.0162501

Wenchao Li, Shuo Li, Timothy C. Brown, Qiang Sun, Xuezhi Wang, Vladislav V. Yakovlev, Allison Kealy, Bill Moran, Andrew D. Greentree

{"title":"Estimation of the number of single-photon emitters for multiple fluorophores with the same spectral signature","authors":"Wenchao Li, Shuo Li, Timothy C. Brown, Qiang Sun, Xuezhi Wang, Vladislav V. Yakovlev, Allison Kealy, Bill Moran, Andrew D. Greentree","doi":"10.1116/5.0162501","DOIUrl":"https://doi.org/10.1116/5.0162501","url":null,"abstract":"Fluorescence microscopy is of vital importance for understanding biological function. However, most fluorescence experiments are only qualitative inasmuch as the absolute number of fluorescent particles can often not be determined. Additionally, conventional approaches to measuring fluorescence intensity cannot distinguish between two or more fluorophores that are excited and emit in the same spectral window, as only the total intensity in a spectral window can be obtained. Here we show that, by using photon number resolving experiments, we are able to determine the number of emitters and their probability of emission for a number of different species, all with the same measured spectral signature. We illustrate our ideas by showing the determination of the number of emitters per species and the probability of photon collection from that species, for one, two and three otherwise unresolvable fluorophores. The convolution binomial model is presented to represent the counted photons emitted by multiple species. Then, the expectation-maximization (EM) algorithm is used to match the measured photon counts to the expected convolution binomial distribution function. In applying the EM algorithm, to leverage the problem of being trapped in a sub-optimal solution, the moment method is introduced to yield an initial guess for the EM algorithm. Additionally, the associated Cramér–Rao lower bound is derived and compared with the simulation results.","PeriodicalId":93525,"journal":{"name":"AVS quantum science","volume":"77 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134956746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Atomic diffraction from single-photon transitions in gravity and Standard-Model extensions 引力中单光子跃迁的原子衍射和标准模型的扩展

AVS quantum science Pub Date : 2023-11-14 DOI: 10.1116/5.0174258

Alexander Bott, Fabio Di Pumpo, Enno Giese

引用次数: 2

Efficient numerical description of the dynamics of interacting multispecies quantum gases 相互作用的多种量子气体动力学的有效数值描述

AVS quantum science Pub Date : 2023-11-07 DOI: 10.1116/5.0163850

Annie Pichery, Matthias Meister, Baptist Piest, Jonas Böhm, Ernst Maria Rasel, Eric Charron, Naceur Gaaloul

引用次数: 2

ℓ 00 ℓ entanglement and the twisted quantum eraser 和扭曲量子擦除器

AVS quantum science Pub Date : 2023-11-07 DOI: 10.1116/5.0167938

Dylan Danese, Sabine Wollmann, Saroch Leedumrongwatthanakun, Will McCutcheon, Manuel Erhard, William N. Plick, Mehul Malik

引用次数: 0

Emulating an atomic gyroscope with multiple accelerometers 模拟具有多个加速度计的原子陀螺仪

AVS quantum science Pub Date : 2023-11-03 DOI: 10.1116/5.0166281

Nathan Shettell, Rainer Dumke

引用次数: 0

Detecting intermediate-mass black hole binaries with atom interferometer observatories: Using the resonant mode for the merger phase 用原子干涉仪观测中质量黑洞双星:利用合并相位的共振模式

AVS quantum science Pub Date : 2023-11-01 DOI: 10.1116/5.0162505

Alejandro Torres-Orjuela

{"title":"Detecting intermediate-mass black hole binaries with atom interferometer observatories: Using the resonant mode for the merger phase","authors":"Alejandro Torres-Orjuela","doi":"10.1116/5.0162505","DOIUrl":"https://doi.org/10.1116/5.0162505","url":null,"abstract":"Atom interferometry detectors like AION, ZAIGA, and AEDGE will be able to detect gravitational waves (GWs) at dHz covering the band between large space-based laser interferometers LISA/TianQin/Taiji and ground-based facilities LIGO/Virgo/KAGRA. They will detect the late inspiral and merger of GW sources containing intermediate-mass black holes (IMBHs) in the mass range 102−105 M⊙. We study how accurately the parameters of an IMBH binary can be measured using AION's power spectral density. Furthermore, we propose a detection scheme where the early inspiral of the binary is detected using the regular broadband mode while the merger is detected using the resonant mode. We find that using such a detection scheme, the signal-to-noise ratio of the detection and the detection accuracy of the parameters can be enhanced compared to the full detection of the signal using the broadband mode. We, further, assess the impact of the necessary detection gap while switching from broadband to resonant mode studying the case of a short (30 s) and a long (600 s) gap. We find that the improvement in the detection accuracy for both gaps is around 40% for the total mass and the spin of the heavier black hole. For the short gap, the accuracy always improves ranging between 2% and 31% for the other parameters. For the long gap, there is a decrease in the detection accuracy for the luminosity distance, the inclination, and the initial phase but only by 1%–6% while for the remaining parameters, we have improved accuracies of around 2%–20%.","PeriodicalId":93525,"journal":{"name":"AVS quantum science","volume":"62 2-4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135271093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Status of the GINGER project GINGER项目的状态

AVS quantum science Pub Date : 2023-10-26 DOI: 10.1116/5.0167940

Carlo Altucci, Francesco Bajardi, Andrea Basti, Nicolò Beverini, Giorgio Carelli, Salvatore Capozziello, Simone Castellano, Donatella Ciampini, Fabrizio Davì, Francesco dell'Isola, Gaetano De Luca, Roberto Devoti, Giuseppe Di Somma, Angela D. V. Di Virgilio, Francesco Fuso, Ivan Giorgio, Aladino Govoni, Enrico Maccioni, Paolo Marsili, Antonello Ortolan, Alberto Porzio, Matteo Luca Ruggiero, Raffaele Velotta

{"title":"Status of the GINGER project","authors":"Carlo Altucci, Francesco Bajardi, Andrea Basti, Nicolò Beverini, Giorgio Carelli, Salvatore Capozziello, Simone Castellano, Donatella Ciampini, Fabrizio Davì, Francesco dell'Isola, Gaetano De Luca, Roberto Devoti, Giuseppe Di Somma, Angela D. V. Di Virgilio, Francesco Fuso, Ivan Giorgio, Aladino Govoni, Enrico Maccioni, Paolo Marsili, Antonello Ortolan, Alberto Porzio, Matteo Luca Ruggiero, Raffaele Velotta","doi":"10.1116/5.0167940","DOIUrl":"https://doi.org/10.1116/5.0167940","url":null,"abstract":"Large frame ring laser gyroscopes, based on the Sagnac effect, are top sensitivity instrumentation to measure angular velocity with respect to the fixed stars. GINGER (Gyroscopes IN GEneral Relativity) project foresees the construction of an array of three large dimension ring laser gyroscopes, rigidly connected to the Earth. GINGER has the potentiality to measure general relativity effects and Lorentz Violation in the gravity sector, once a sensitivity of 10−9, or better, of the Earth rotation rate is obtained. Being attached to the Earth crust, the array will also provide useful data for geophysical investigation. For this purpose, it is at present under construction as part of the multi-components observatory called Underground Geophysics at Gran Sasso (UGSS). Sensitivity is the key point to determine the relevance of this instrument for fundamental science. The most recent progress in the sensitivity measurement, obtained on a ring laser prototype called GINGERINO, indicates that GINGER should reach the level of 1 part in 1011 of the Earth rotation rate.","PeriodicalId":93525,"journal":{"name":"AVS quantum science","volume":"32 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134910161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0