ZAIGA: Zhaoshan long-baseline atom interferometer gravitation antenna

Zhan, Min; Wang, Jin; Ni, Wei-Tou; Gao, Dongfeng; Wang, Gang; Li, He; Li, Runbing; Zhou, Lin; Chen, Xi; Zhong, Jiaqi; Tang, Biao; Yao, Zhan-Wei; Zhu, Lei; Xiong, Zhuang; Sibing, Lu; Yu, G. C.; Cheng, Qunfeng; Liu, Min; Liang, Yurong; Xu, Peng; He, Xiaodong; Min, Ke; Tan, Zheng; Luo, Jun

doi:10.1142/s0218271819400054

Cited by 137 publications

(117 citation statements)

References 142 publications

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“…In addition, pulsar timing arrays provide sensitivity to GWs in a significantly lower frequency band [37]. As we discuss in more detail below, there are several terrestrial cold atom experiments that are currently being prepared, such as MIGA [38], ZAIGA [39] and MAGIS [40], or being proposed, such as ELGAR [41] and AION [42]. These experiments will provide measurements complementary to LISA and LIGO/Virgo/KAGRA/INDIGO/ET/CE via their sensitivities in the mid-frequency range between 1 and 10 -2 Hz.…”

Section: Gravitational Wavesmentioning

confidence: 99%

“…The first step is funded and under construction at Stanford, the second step is also funded and being prepared at Fermilab, and the third step is planned for a km-scale vertical shaft at SURF. • The Zhaoshan long-baseline Atom Interferometer Gravitation Antenna (ZAIGA) is an underground laser-linked interferometer facility [39] under construction near Wuhan, China. It has an equilateral triangle configuration with two atom interferometers separated by a km in each arm, a 300-meter vertical shaft equipped with an atom fountain and atomic clocks, and 1-km-arm-length optical clocks linked by locked lasers.…”

Section: Technological Readinessmentioning

confidence: 99%

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AEDGE: Atomic Experiment for Dark Matter and Gravity Exploration in Space

El-Neaj

Alpigiani

Amairi‐Pyka

et al. 2020

EPJ Quantum Technol.

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298

329

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We propose in this White Paper a concept for a space experiment using cold atoms to search for ultra-light dark matter, and to detect gravitational waves in the frequency range between the most sensitive ranges of LISA and the terrestrial LIGO/Virgo/KAGRA/INDIGO experiments. This interdisciplinary experiment, called Atomic Experiment for Dark Matter and Gravity Exploration (AEDGE), will also complement other planned searches for dark matter, and exploit synergies with other gravitational wave detectors. We give examples of the extended range of sensitivity to ultra-light dark matter offered by AEDGE, and how its gravitational-wave measurements could explore the assembly of super-massive black holes, first-order phase transitions in the early universe and cosmic strings. AEDGE will be based upon technologies now being developed for terrestrial experiments using cold atoms, and will benefit from the space experience obtained with, e.g., LISA and cold atom experiments in microgravity.KCL-PH-TH/2019-65, CERN-TH-2019-126

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Section: Gravitational Wavesmentioning

confidence: 99%

Section: Technological Readinessmentioning

confidence: 99%

AEDGE: Atomic Experiment for Dark Matter and Gravity Exploration in Space

El-Neaj

Alpigiani

Amairi‐Pyka

et al. 2020

EPJ Quantum Technol.

Self Cite

298

329

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show abstract

“…4actually includes contribution of possible violation of MEE. With steady improvements of AI technology, such as the application of high-sensitivity 27 and long-baseline 28 , united and even quantum tests 29,30 of MEE and EP will become possible in the future.…”

Section: Fig 1 | Schematic Diagram Of 4wdr-e 87mentioning

confidence: 99%

A Mass-Energy United Test of the Equivalence Principle

Zhan

Zhang

et al. 2020

Preprint

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The equivalence principle (EP) is one of the basic assumptions of general relativity. Almost all new theories[1] that attempt to unify gravity with the standard model[2] require the EP be broken. Experimental tests of EP provide opportunities for verification of different theoretical models and emergence of new physics. Traditional mass tests[3-9] of EP have achieved the precision of 10-15 level[3]. Tests with quantum properties including spin[10,11], superposition[12], quantum statistics[10] and internal state[4,13], have been performed, and entanglement[14] test was also proposed. Energy is another very important property and is related to mass by the mass-energy equivalence (MEE). However, mass-energy united tests of EP have never been carried out. Here, we achieve for the first time the united EP test covering energy interval from micro-eV to giga-eV by a mass and internal energy specified atom interferometer (AI). The AI was realized by taking advantage of the Four-Wave Double-diffraction Raman transition (4WDR) method[7] for specified internal energy states, and by extending 4WDR to include excited states. The Eötvös parameters of the four paired combinations (87Rb|F＝1>-85Rb|F＝2>, 87Rb|F＝2>-85Rb|F＝2>, 87Rb|F＝1>-85Rb|F＝3> and 87Rb|F＝2>-85Rb|F＝3>) were measured to be η1=(1.5±3.2)×10-10, η2=(-0.6 ±3.7)×10-10, η3=(-2.5±4.1)×10-10 and η4=(-2.7±3.6)×10-10, respectively. The violation parameters of mass and internal energy are constrained to η0 = (-0.8±1.4)×10-10 and β = (-0.6±6.9)×105. This work opens a door for united tests of EP and MEE in large energy range with quantum systems.

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“…Although the technology for the SAGE mission is not completely mature yet, it takes advantage of developments for the ACES (Atomic Clock Ensemble in Space) [7,8] and CACES (Cold Atom Clock Experiment in Space) [9] missions and the results of ESA studies for SOC (Space Optical Clock) [10,11,12], SAI (Space Atom Interferometer) [13,14], SAGAS (Search for Anomalous Gravitation using Atomic Sensors) [15], STE-QUEST (Space-Time Explorer and QUantum Equivalence principle Space Test) [16,17], and other ongoing or planned projects on ground [18,19,20] and in space [21,22,23,24]. This paper is organized as follows: for the main goals of the SAGE mission, Section 2 briefly introduces the science case, in Section 3 the scientific requirements are discussed in detail, Section 4 describes the measurement concept.…”

Section: Introductionmentioning

confidence: 99%