Signal photon flux generated by high-frequency relic gravitational waves

  • The power spectrum of primordial tensor perturbations Pt increases rapidly in the high frequency region if the spectral index nt>0. It is shown that the amplitude of relic gravitational waves ht(5×109 Hz) varies from 10-36 to 10-25 while nt varies from -6.25×10-3 to 0.87. A high frequency gravitational wave detector proposed by F.-Y. Li detects gravitational waves through observing the perturbed photon flux that is generated by interaction between relic gravitational waves and electromagnetic field. It is shown that the perturbative photon flux Nx1 (5×109 Hz) varies from 1.40×10-4 s-1 to 2.85×107 s-1 while nt varies from -6.25× 10-3 to 0.87. Correspondingly, the ratio of the transverse perturbative photon flux Nx1 to the background photon flux varies from 10-28 to 10-16.
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null. Signal photon flux generated by high-frequency relic gravitational waves[J]. Chinese Physics C, 2016, 40(8): 085101. doi: 10.1088/1674-1137/40/8/085101
null. Signal photon flux generated by high-frequency relic gravitational waves[J]. Chinese Physics C, 2016, 40(8): 085101.  doi: 10.1088/1674-1137/40/8/085101 shu
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Received: 2015-11-09
Revised: 2016-03-08
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    Supported by National Natural Science Foundation of China (11305181,11322545,11335012) and Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China (Y5KF181CJ1)

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Signal photon flux generated by high-frequency relic gravitational waves

Fund Project:  Supported by National Natural Science Foundation of China (11305181,11322545,11335012) and Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China (Y5KF181CJ1)

Abstract: The power spectrum of primordial tensor perturbations Pt increases rapidly in the high frequency region if the spectral index nt>0. It is shown that the amplitude of relic gravitational waves ht(5×109 Hz) varies from 10-36 to 10-25 while nt varies from -6.25×10-3 to 0.87. A high frequency gravitational wave detector proposed by F.-Y. Li detects gravitational waves through observing the perturbed photon flux that is generated by interaction between relic gravitational waves and electromagnetic field. It is shown that the perturbative photon flux Nx1 (5×109 Hz) varies from 1.40×10-4 s-1 to 2.85×107 s-1 while nt varies from -6.25× 10-3 to 0.87. Correspondingly, the ratio of the transverse perturbative photon flux Nx1 to the background photon flux varies from 10-28 to 10-16.

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