Probing the gravitational wave background from cosmic strings with the alternative LISA-TAIJI network

Abstract As one of the detection targets of all gravitational wave detectors today, the stochastic gravitational wave background (SGWB) provides an important means of understanding the evolution of our universe. In this paper, we explore the feasibility of detecting the SGWB generated by the loops a...

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Main Authors: Bo-Rui Wang, Jin Li, He Wang
Format: Article
Language:English
Published: SpringerOpen 2023-11-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-023-12129-y
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author Bo-Rui Wang
Jin Li
He Wang
author_facet Bo-Rui Wang
Jin Li
He Wang
author_sort Bo-Rui Wang
collection DOAJ
description Abstract As one of the detection targets of all gravitational wave detectors today, the stochastic gravitational wave background (SGWB) provides an important means of understanding the evolution of our universe. In this paper, we explore the feasibility of detecting the SGWB generated by the loops arising throughout the cosmological evolution of the cosmic string network, using both individual space detectors (LISA and TAIJI) and joint space detectors (LISA-TAIJI). For the joint detectors, we choose three different configurations of TAIJI, namely TAIJIm, TAIJIp, and TAIJIc, to form the LISA-TAIJI networks, and we investigate their ability to detect the SGWB. By comparing the power-law sensitivity (PLS) curves of individual space detectors and joint detectors with the energy density spectrum of SGWB, we find that LISA-TAIJIc has the best sensitivity for detecting the SGWB from cosmic string loops. It thus holds promise for further constraining the tension of cosmic strings $$G\mu =O(10^{-17})$$ G μ = O ( 10 - 17 ) .
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spelling doaj.art-f746f4340c8648299230cb550108710c2024-03-31T11:30:51ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522023-11-0183111910.1140/epjc/s10052-023-12129-yProbing the gravitational wave background from cosmic strings with the alternative LISA-TAIJI networkBo-Rui Wang0Jin Li1He Wang2College of Physics, Chongqing UniversityCollege of Physics, Chongqing UniversityInternational Centre for Theoretical Physics Asia-Pacific, University of Chinese Academy of SciencesAbstract As one of the detection targets of all gravitational wave detectors today, the stochastic gravitational wave background (SGWB) provides an important means of understanding the evolution of our universe. In this paper, we explore the feasibility of detecting the SGWB generated by the loops arising throughout the cosmological evolution of the cosmic string network, using both individual space detectors (LISA and TAIJI) and joint space detectors (LISA-TAIJI). For the joint detectors, we choose three different configurations of TAIJI, namely TAIJIm, TAIJIp, and TAIJIc, to form the LISA-TAIJI networks, and we investigate their ability to detect the SGWB. By comparing the power-law sensitivity (PLS) curves of individual space detectors and joint detectors with the energy density spectrum of SGWB, we find that LISA-TAIJIc has the best sensitivity for detecting the SGWB from cosmic string loops. It thus holds promise for further constraining the tension of cosmic strings $$G\mu =O(10^{-17})$$ G μ = O ( 10 - 17 ) .https://doi.org/10.1140/epjc/s10052-023-12129-y
spellingShingle Bo-Rui Wang
Jin Li
He Wang
Probing the gravitational wave background from cosmic strings with the alternative LISA-TAIJI network
European Physical Journal C: Particles and Fields
title Probing the gravitational wave background from cosmic strings with the alternative LISA-TAIJI network
title_full Probing the gravitational wave background from cosmic strings with the alternative LISA-TAIJI network
title_fullStr Probing the gravitational wave background from cosmic strings with the alternative LISA-TAIJI network
title_full_unstemmed Probing the gravitational wave background from cosmic strings with the alternative LISA-TAIJI network
title_short Probing the gravitational wave background from cosmic strings with the alternative LISA-TAIJI network
title_sort probing the gravitational wave background from cosmic strings with the alternative lisa taiji network
url https://doi.org/10.1140/epjc/s10052-023-12129-y
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