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Comparison of the sensitivities for atom interferometers in two different operation methods 被引量:1
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作者 段小春 毛德凯 +4 位作者 邓小兵 周敏康 邵成刚 祝竺 胡忠坤 《Chinese Physics B》 SCIE EI CAS CSCD 2018年第1期351-356,共6页
We investigated the sensitivities of atom interferometers in the usual fringe-scanning method (FSM) versus the fringe- locking method (FLM). The theoretical analysis shows that for typical noises in atom interfero... We investigated the sensitivities of atom interferometers in the usual fringe-scanning method (FSM) versus the fringe- locking method (FLM). The theoretical analysis shows that for typical noises in atom interferometers, the FSM will degrade the sensitivity while the FLM does not. The sensitivity-improvement factor of the FLM over the FSM depends on the type of noises, which is validated by numerical simulations. The detailed quantitative analysis on this fundamental issue is presented, and our analysis is readily extendable to other kinds of noises as well as other fringe shapes in addition to a cosine one. 展开更多
关键词 atom interferometer fringe locking fringe scanning sensitivity
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Atom interferometers with weak-measurement path detectors and their quantum mechanical analysis 被引量:1
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作者 李志远 《Chinese Physics B》 SCIE EI CAS CSCD 2019年第6期45-65,共21页
According to the orthodox interpretation of quantum physics, wave-particle duality(WPD) is the intrinsic property of all massive microscopic particles. All gedanken or realistic experiments based on atom interferomete... According to the orthodox interpretation of quantum physics, wave-particle duality(WPD) is the intrinsic property of all massive microscopic particles. All gedanken or realistic experiments based on atom interferometers(AI) have so far upheld the principle of WPD, either by the mechanism of the Heisenberg’s position-momentum uncertainty relation or by quantum entanglement. In this paper, we propose and make a systematic quantum mechanical analysis of several schemes of weak-measurement atom interferometer(WM-AI) and compare them with the historical schemes of strongmeasurement atom interferometer(SM-AI), such as Einstein’s recoiling slit and Feynman’s light microscope. As the critical part of these WM-AI setups, a weak-measurement path detector(WM-PD) deliberately interacting with the atomic internal electronic quantum states is designed and used to probe the which-path information of the atom, while only inducing negligible perturbation of the atomic center-of-mass motion. Another instrument that is used to directly interact with the atomic center-of-mass while being insensitive to the internal electronic quantum states is used to monitor the atomic centerof-mass interference pattern. Two typical schemes of WM-PD are considered. The first is the micromaser-cavity path detector, which allows us to probe the spontaneously emitted microwave photon from the incoming Rydberg atom in its excited electronic state and record unanimously the which-path information of the atom. The second is the optical-lattice Bragg-grating path detector, which can split the incoming atom beam into two different directions as determined by the internal electronic state and thus encode the which-path information of the atom into the internal states of the atom. We have used standard quantum mechanics to analyze the evolution of the atomic center-of-mass and internal electronic state wave function by directly solving Schr¨odinger’s equation for the composite atom-electron-photon system in these WM-AIs. We have also compared our analysis with the theoretical and experimental studies that have been presented in the previous literature. The results show that the two sets of instruments can work separately, collectively, and without mutual exclusion to enable simultaneous observation of both wave and particle nature of the atoms to a much higher level than the historical SM-AIs, while avoiding degradation from Heisenberg’s uncertainty relation and quantum entanglement. We have further investigated the space–time evolution of the internal electronic quantum state, as well as the combined atom–detector system and identified the microscopic origin and role of quantum entanglement, as emphasized in numerous previous studies. Based on these physics insights and theoretical analyses, we have proposed several new WM-AI schemes that can help to elucidate the puzzling physics of the WPD of the atoms. The principle of WM-AI scheme and quantum mechanical analyses made in this work can be directly extended to examine the principle of WPD for other massive particles. 展开更多
关键词 wave-particle DUALITY atom interferometerS weak-measurement path-detector quantum ENTANGLEMENT Heisenberg’s uncertainty relation
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Wave–particle duality in a Raman atom interferometer 被引量:1
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作者 贾爱爱 杨俊 +3 位作者 颜树华 胡青青 罗玉昆 朱诗尧 《Chinese Physics B》 SCIE EI CAS CSCD 2015年第8期166-169,共4页
We theoretically investigate the wave–particle duality based on a Raman atom interferometer, via the interaction between the atom and Raman laser, which is similar to the optical Mach–Zehnder interferometer. The wav... We theoretically investigate the wave–particle duality based on a Raman atom interferometer, via the interaction between the atom and Raman laser, which is similar to the optical Mach–Zehnder interferometer. The wave and which-way information are stored in the atomic internal states. For the φ- π- π /2 type of atom interferometer, we find that the visibility(V) and predictability(P) still satisfy the duality relation, P2+ V2≤ 1. 展开更多
关键词 complementarity wave–particle duality atom interferometer Raman pulse
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Systematic error suppression scheme of the weak equivalence principle test by dual atom interferometers in space based on spectral correlation 被引量:1
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作者 胡建功 陈曦 +2 位作者 王立勇 廖庆洪 汪庆年 《Chinese Physics B》 SCIE EI CAS CSCD 2020年第11期197-202,共6页
Systematic error suppression and test data processing are very important in improving the accuracy and sensitivity of the atom interferometer(AI)-based weak-equivalence-principle(WEP) test in space. Here we present a ... Systematic error suppression and test data processing are very important in improving the accuracy and sensitivity of the atom interferometer(AI)-based weak-equivalence-principle(WEP) test in space. Here we present a spectrum correlation method to investigate the test data of the AI-based WEP test in space by analyzing the characteristics of systematic errors and noises. The power spectrum of the Eotvos coefficient η, systematic errors, and noises in AI-based WEP test in space are analyzed and calculated in detail. By using the method, the WEP violation signal is modulated from direct current(DC) frequency band to alternating current(AC) frequency band. We find that the signal can be effectively extracted and the influence of systematic errors can be greatly suppressed by analyzing the power spectrum of the test data when the spacecraft is in an inertial pointing mode. Furthermore, the relation between the Eotvos coefficient η and the number of measurements is obtained under certain simulated parameters. This method will be useful for both isotopic and nonisotopic AI-based WEP tests in space. 展开更多
关键词 atom interferometer weak equivalence principle spectral correlation systematic error
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Rapid extraction of the phase shift of the cold-atom interferometer via phase demodulation
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作者 程冰 王兆英 +2 位作者 许翱鹏 王启宇 林强 《Chinese Physics B》 SCIE EI CAS CSCD 2015年第11期250-254,共5页
Generally, the phase of the cold-atom interferometer is extracted from the atomic interference fringe, which can be obtained by scanning the chirp rate of the Raman lasers at a given interrogation time T. If mapping t... Generally, the phase of the cold-atom interferometer is extracted from the atomic interference fringe, which can be obtained by scanning the chirp rate of the Raman lasers at a given interrogation time T. If mapping the phase shift for each T with a series of measurements, the extraction time is limited by the protocol of each T measurement, and therefore increases dramatically when doing fine mapping with a small step of T. Here we present a new method for rapid extraction of the phase shift via phase demodulation. By using this method, the systematic shifts can be mapped though the whole interference area. This method enables quick diagnostics of the potential cause of the phase shift in specific time. We demonstrate experimentally that this method is effective for the evaluation of the systematic errors of the cold atomic gravimeter. The systematic phase error induced by the quadratic Zeeman effect in the free-falling region is extracted by this method. The measured results correspond well with the theoretic prediction and also agree with the results obtained by the fringe fitting method for each T. 展开更多
关键词 atom interferometer phase extraction phase demodulation
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Common-mode noise rejection using fringe-locking method in WEP test by simultaneous dual-species atom interferometers
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作者 邓小兵 段小春 +3 位作者 毛德凯 周敏康 邵成刚 胡忠坤 《Chinese Physics B》 SCIE EI CAS CSCD 2017年第4期174-178,共5页
We theoretically investigate the application of the fringe-locking method(FLM) in the dual-species quantum test of the weak equivalence principle(WEP).With the FLM,the measurement is performed invariably at the mi... We theoretically investigate the application of the fringe-locking method(FLM) in the dual-species quantum test of the weak equivalence principle(WEP).With the FLM,the measurement is performed invariably at the midfringe,and the extraction of the phase shift for atom interferometers is linearized.For the simultaneous interferometers,this linearization enables a good common-mode rejection of vibration noise,which is usually the main limit for high precision WEP tests of the dual-species kind.We note that this method also allows for an unbiased determination of the gravity accelerations difference,which meanwhile is ready to be implemented. 展开更多
关键词 weak equivalence principle dual-species atom interferometers fringe locking vibration noise rejection
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Improve the performance of interferometer with ultra-cold atoms
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作者 董翔宇 金圣杰 +2 位作者 税鸿冕 彭鹏 周小计 《Chinese Physics B》 SCIE EI CAS CSCD 2021年第1期42-55,共14页
Ultra-cold atoms provide ideal platforms for interferometry.The macroscopic matter-wave property of ultra-cold atoms leads to large coherent length and long coherent time,which enable high accuracy and sensitivity to ... Ultra-cold atoms provide ideal platforms for interferometry.The macroscopic matter-wave property of ultra-cold atoms leads to large coherent length and long coherent time,which enable high accuracy and sensitivity to measurement.Here,we review our efforts to improve the performance of the interferometer.We demonstrate a shortcut method for manipulating ultra-cold atoms in an optical lattice.Compared with traditional ones,this shortcut method can reduce the manipulation time by up to three orders of magnitude.We construct a matter-wave Ramsey interferometer for trapped motional quantum states and significantly increase its coherence time by one order of magnitude with an echo technique based on this method.Efforts have also been made to enhance the resolution by multimode scheme.Application of a noise-resilient multi-component interferometer shows that increasing the number of paths could sharpen the peaks in the time-domain interference fringes,which leads to a resolution nearly twice compared with that of a conventional double-path two-mode interferometer.With the shortcut method mentioned above,improvement of the momentum resolution could also be fulfilled,which leads to atomic momentum patterns less than 0.6hkL. To identify and remove systematic noises,we introduce the methods based on the principal component analysis (PCA) that reduce the noise in detection close to the 1/√2 of the photon-shot noise and separate and identify or even eliminate noises.Furthermore,we give a proposal to measure precisely the local gravity acceleration within a few centimeters based on our study of ultracold atoms in precision measurements. 展开更多
关键词 precision measurement ultra-cold atoms atom interferometer gravity measurements
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Interference properties of a trapped atom interferometer in two asymmetric optical dipole traps
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作者 王立勇 李潇 +4 位作者 王坤鹏 赵吟雪 邸克 杜佳佳 胡建功 《Chinese Physics B》 SCIE EI CAS CSCD 2020年第12期227-232,共6页
We investigate interference properties of a trapped atom interferometer where two symmetric optical dipole traps(ODTs)act as the atomic wave-packets splitter and combiner with internal state labelling.After the prepar... We investigate interference properties of a trapped atom interferometer where two symmetric optical dipole traps(ODTs)act as the atomic wave-packets splitter and combiner with internal state labelling.After the preparation of initial superposition states,the atomic wave-packet is adiabatically split and moves into two spatially separate asymmetric ODTs.The atomic wave-packets in two ODTs are then adiabatically recombined after a duration of free evolving in traps,completing the interference cycle of this atom interferometer.We show that the interferogram exhibits a series of periodic revivals in interference visibility.Furthermore,the revival period decreases as the asymmetry of two dipole potentials increases.By introducing an echo sequence to the interferometer,we show that while the echo effect is not influenced by the asymmetry of the two ODTs,the onset of periodic revivals changes by the echo sequence.Our study provides an effective method to cancel or compensate the phase shift caused by position and time correlated force. 展开更多
关键词 atom interferometer optical dipole traps REVIVAL echo sequence
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Suppression of Coriolis error in weak equivalence principle test using ^85Rb-^87Rb dual-species atom interferometer
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作者 段维涛 何川 +5 位作者 闫思彤 冀宇航 周林 陈曦 王谨 詹明生 《Chinese Physics B》 SCIE EI CAS CSCD 2020年第7期77-84,共8页
Coriolis effect is an important error source in the weak equivalence principle(WEP)test using atom interferometer.In this paper,the problem of Coriolis error in WEP test is studied theoretically and experimentally.In ... Coriolis effect is an important error source in the weak equivalence principle(WEP)test using atom interferometer.In this paper,the problem of Coriolis error in WEP test is studied theoretically and experimentally.In theoretical simulation,the Coriolis effect is analyzed by establishing an error model.The measurement errors of Eotvos coefficient(η)in WEP test related to experimental parameters,such as horizontal-velocity difference and horizontal-position difference of atomic clouds,horizontal-position difference of detectors,and rotation compensation of Raman laser’s mirror are calculated.In experimental investigation,the position difference between^85Rb and^87Rb atomic clouds is reduced to 0.1 mm by optimizing the experimental parameters,an alternating detection method is used to suppress the error caused by detection position difference,thus the Coriolis error related to the atomic clouds and detectors is reduced to 1.1 × 10^-9.This Coriolis error is further corrected by com pensating the rotation of Raman laser's mirror,and the total uncertainty o f rj measurement related to the Coriolis effect is reduced as δη=4.4 × 10^-11. 展开更多
关键词 atom interferometer weak equivalence principle test Coriolis effect
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Micro-Gal level gravity measurements with cold atom interferometry 被引量:8
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作者 周敏康 段小春 +3 位作者 陈乐乐 罗覃 徐耀耀 胡忠坤 《Chinese Physics B》 SCIE EI CAS CSCD 2015年第5期32-43,共12页
Developments of the micro-Gal level gravimeter based on atom interferometry are reviewed, and the recent progress and results of our group are also presented. Atom interferometric gravimeters have shown high resolutio... Developments of the micro-Gal level gravimeter based on atom interferometry are reviewed, and the recent progress and results of our group are also presented. Atom interferometric gravimeters have shown high resolution and accuracy for gravity measurements. This kind of quantum sensor has excited world-wide interest for both practical applications and fundamental research. 展开更多
关键词 gravity measurements atom interferometer laser cooling and trapping precision measurements
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Elementary analysis of interferometers for wave particle duality test and the prospect of going beyond the complementarity principle 被引量:5
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作者 李志远 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第11期202-214,共13页
A distinct method to show a quantum object behaving both as wave and as particle is proposed and described in some detail. We make a systematic analysis using the elementary methodology of quantum mechanics upon Young... A distinct method to show a quantum object behaving both as wave and as particle is proposed and described in some detail. We make a systematic analysis using the elementary methodology of quantum mechanics upon Young's two-slit interferometer and the Mach-Zehnder two-arm interferometer with the focus placed on how to measure the interference pattern (wave nature) and the which-way information (particle nature) of quantum objects. We design several schemes to simultaneously acquire the which-way information for an individual quantum object and the high-contrast interference pattern for an ensemble of these quantum objects by placing two sets of measurement instruments that are well separated in space and whose perturbation of each other is negligibly small within the interferometer at the same time. Yet, improper arrangement and cooperation of these two sets of measurement instruments in the interferometer would lead to failure of simultaneous observation of wave and particle behaviors. The internal freedoms of quantum objects could be harnessed to probe both the which-way information and the interference pattern for the center-of-mass motion. That quantum objects can behave beyond the wave-particle duality and the complementarity principle would stimulate new conceptual examination and exploration of quantum theory at a deeper level. 展开更多
关键词 wave-particle duality complementarity principle atom interferometer
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Movable precision gravimeters based on cold atom interferometry 被引量:2
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作者 张炯阳 陈乐乐 +5 位作者 程源 罗覃 舒玉彪 段小春 周敏康 胡忠坤 《Chinese Physics B》 SCIE EI CAS CSCD 2020年第9期70-78,共9页
High precision atom interferometers have shown attractive prospects in laboratory for testing fundamental physics and inertial sensing.Efforts on applying this innovative technology to field applications are also bein... High precision atom interferometers have shown attractive prospects in laboratory for testing fundamental physics and inertial sensing.Efforts on applying this innovative technology to field applications are also being made intensively.As the manipulation of cold atoms and related matching technologies mature,inertial sensors based on atom interferometry can be adapted to various indoor or mobile platforms.A series of experiments have been conducted and high performance has been achieved.In this paper,we will introduce the principles,the key technologies,and the applications of atom interferometers,and mainly review the recent progress of movable atom gravimeters. 展开更多
关键词 atom interferometer absolute gravimeter precision measurement
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Sensitivity function analysis of gravitational wave detection with single-laser and large-momentum-transfer atomic sensors 被引量:2
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作者 Biao Tang Bao-Cheng Zhang +2 位作者 Lin Zhou Jin Wang Ming-Sheng Zhan 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2015年第3期333-347,共15页
Recently, a configuration using atomic interferometers (AIs) had been sug- gested for the detection of gravitational waves. A new AI with some additional laser pulses for implementing large momentum transfer was als... Recently, a configuration using atomic interferometers (AIs) had been sug- gested for the detection of gravitational waves. A new AI with some additional laser pulses for implementing large momentum transfer was also put forward, in order to reduce the effect of shot noise and laser frequency noise. We use a sensitivity function to analyze all possible configurations of the new AI and to distinguish how many mo- menta are transferred in a specific configuration. By analyzing the new configuration, we further explore a detection scheme for gravitational waves, in particular, that ame- liorates laser frequency noise. We find that the amelioration occurs in such a scheme, but novelly, in some cases, the frequency noise can be canceled completely by using a proper data processing method. 展开更多
关键词 gravitational wave detection -- atomic interferometer-- laser frequencynoise
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Inertial measurement using atom interferometry 被引量:1
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作者 JIA Aiai YANG Jun +4 位作者 YAN Shuhua LUO Yukun HU Qingqing WEI Chunhua LI Zehuan 《Instrumentation》 2015年第4期56-66,共11页
The recent advances of atom interferometer and its application in precision inertial measurement are review ed. The principle,characteristics and implementation of atom interferometer are introduced and it can be used... The recent advances of atom interferometer and its application in precision inertial measurement are review ed. The principle,characteristics and implementation of atom interferometer are introduced and it can be used to measure gravitational acceleration,gravity gradient and rotation for its high sensitivity. We also present the principle,structure and new progress of gravimeter,gravity gradiometer and gyroscope based on atom interferometer. 展开更多
关键词 atom interferometer INERTIAL MEASUREMENT GRAVITY ROTATION
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Measuring gravitational effect of superintense laser by spin-squeezed Bose-Einstein condensates interferometer
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作者 Eng Boon Ng C.H.Raymond Ooi 《Chinese Physics B》 SCIE EI CAS CSCD 2022年第5期265-273,共9页
We consider an extremely intense laser,enclosed by an atom interferometer.The gravitational potential generated from the high-intensity laser is solved from the Einstein field equation under the Newtonian limit.We com... We consider an extremely intense laser,enclosed by an atom interferometer.The gravitational potential generated from the high-intensity laser is solved from the Einstein field equation under the Newtonian limit.We compute the strength of the gravitational force and study the feasibility of measuring the force by the atom interferometer.The intense laser field from the laser pulse can induce a phase change in the interferometer with Bose-Einstein condensates.We push up the sensitivity limit of the interferometer with Bose-Einstein condensates by spin-squeezing effect and determine the sensitivity gap for measuring the gravitational effect from intense laser by atom interferometer. 展开更多
关键词 intense laser field atom interferometer Bose-Einstein condensates spin-squeezing
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Large momentum beamsplitting in atom interferometry
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作者 G D McDonald P M anju +10 位作者 P B Wigley P J Everitt WEI Chunhua M A Sooriyabandara M Boozarjmehr A Kordbacheh C Quinlivan C N Kuhn J E Debs K S Hardman N P Robins 《Instrumentation》 2015年第4期67-75,共9页
Large momentum transfer( LM T) beamsplitting in atom interferometry is review ed,focusing on the use of Bloch Oscillations to achieve high momentum separation w ithout loss of visibility. Phase sensitivity w ith a fri... Large momentum transfer( LM T) beamsplitting in atom interferometry is review ed,focusing on the use of Bloch Oscillations to achieve high momentum separation w ithout loss of visibility. Phase sensitivity w ith a fringe visibility of 7% is observed in a horizontally guided,acceleration-sensitive atom interferometer w ith a momentum separation of 80k betw een its arms.In addition,a 510 k beamsplitter is demonstrated. 展开更多
关键词 LARGE MOMENTUM transfer atom interferometer BLOCH oscillation.
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同位素原子饱和吸收谱稳频的拉曼激光方案
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作者 王玉平 朱磊 +3 位作者 仲嘉琪 王谨 李润兵 令维军 《光子学报》 EI CAS CSCD 北大核心 2024年第1期33-41,共9页
提出一种基于同位素原子饱和吸收谱稳频的拉曼激光方案,并应用于原子干涉仪激光系统的小型化。该方案使用同位素原子吸收泡代替现有拉曼光方案中的移频或调制光学器件,以实现拉曼激光的稳频和失谐,使光路和电路同时简化。针对^(85)Rb原... 提出一种基于同位素原子饱和吸收谱稳频的拉曼激光方案,并应用于原子干涉仪激光系统的小型化。该方案使用同位素原子吸收泡代替现有拉曼光方案中的移频或调制光学器件,以实现拉曼激光的稳频和失谐,使光路和电路同时简化。针对^(85)Rb原子干涉仪,^(87)Rb原子D2线的饱和吸收谱被用于对拉曼激光进行稳频,稳频后的拉曼激光红失谐在GHz量级,线宽约为80 kHz。将该拉曼激光用于原子干涉仪获得了对比度为20%的干涉条纹,重力测量的灵敏度为345μGal/Hz1/2。连续24 h重力测量数据的阿伦方差显示原子干涉仪的分辨率约为2×10^(−8)g@7500 s。该拉曼激光的频率噪声引起的单次重力测量噪声优于1μGal,完全可以满足μGal量级的重力测量需求。该拉曼激光方案有助于推动原子干涉仪激光系统的小型化、轻量化和实用化。 展开更多
关键词 原子干涉 激光冷却 拉曼激光 饱和吸收谱 电光调制器
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Squeezing bandwidth controllable twin beam light and phase sensitive nonlinear interferometer based on atomic ensembles 被引量:1
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作者 JING JieTai LIU CunJin +11 位作者 ZHOU ZhiFan HUDELIST Florian YUAN ChunHua CHEN LiQing LI XiaoYun QIAN Jing ZHANG KeYe ZHOU Lu MA HongMei DONG GuangJiong OU ZeYu ZHANG WeiPing 《Chinese Science Bulletin》 SCIE CAS 2012年第16期1925-1930,共6页
We review our recent experimental progress in quantum technology employing amplification effect of four-wave mixing in a rubidium vapor. We have produced an intensity difference squeezed light source at frequencies as... We review our recent experimental progress in quantum technology employing amplification effect of four-wave mixing in a rubidium vapor. We have produced an intensity difference squeezed light source at frequencies as low as 1.5 kHz which is so far the lowest frequency at which squeezing has been observed in an atomic system. Moreover, we find that the bandwidth of our squeezed light source can be controlled with light intensity pumping. Using our non-classical light source, we have further developed a nonlinear Mach-Zehnder (MZ) interferometer, for which the maximum fringe intensity depends quadratically on the intensity of the phase-sensing field at the high-gain regime, leading to much better sensitivity than a linear MZ interferometer in which the beam splitters have the same phase-sensing intensity. The quantum technologies developed by our group could have great potential in areas such as precision measurement and quantum information. 展开更多
关键词 原子系统 干涉仪 非线性 相位 带宽 挤压 双光束 强度差压缩
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Dynamic splitting and merging of an atom cloud on an atom chip
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作者 柯敏 颜波 +1 位作者 程峰 王育竹 《Chinese Physics B》 SCIE EI CAS CSCD 2009年第11期4823-4828,共6页
Chip-based atom interferometers bring together the advantages of atom chips and Bose-Einstein condensates. Their central prerequisite is that a condensate can be coherently split into two halves with a determined rela... Chip-based atom interferometers bring together the advantages of atom chips and Bose-Einstein condensates. Their central prerequisite is that a condensate can be coherently split into two halves with a determined relative phase. This paper demonstrates the dynamical splitting and merging of an atom cloud with two U-wires on an atom chip. Symmetrical and asymmetrical splittings are realized by applying a bias field with different directions and magnitudes. The trajectories of the splitting are consistent with theoretical calculations. The atom chip is a good candidate for constructing an atom interferometer. 展开更多
关键词 atom chip dynamic splitting and merging chip-based atom interferometers
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Precision measurements with cold atoms and trapped ions
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作者 张球新 王艺蓉 +4 位作者 朱晨昊 王玉欣 张翔 高奎意 张威 《Chinese Physics B》 SCIE EI CAS CSCD 2020年第9期51-69,共19页
Recent progresses on quantum control of cold atoms and trapped ions in both the scientific and technological aspects greatly advance the applications in precision measurement. Thanks to the exceptional controllability... Recent progresses on quantum control of cold atoms and trapped ions in both the scientific and technological aspects greatly advance the applications in precision measurement. Thanks to the exceptional controllability and versatility of these massive quantum systems, unprecedented sensitivity has been achieved in clocks, magnetometers, and interferometers based on cold atoms and ions. Besides, these systems also feature many characteristics that can be employed to facilitate the applications in different scenarios. In this review, we briefly introduce the principles of optical clocks, cold atom magnetometers, and atom interferometers used for precision measurement of time, magnetic field, and inertial forces. The main content is then devoted to summarize some recent experimental and theoretical progresses in these three applications, with special attention being paid to the new designs and possibilities towards better performance. The purpose of this review is by no means to give a complete overview of all important works in this fast developing field, but to draw a rough sketch about the frontiers and show the fascinating future lying ahead. 展开更多
关键词 precision measurement optical clock MAGNETOMETER force measurement atomic interferometer
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