Imperial College London
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Carlo R. Contaldi

Faculty of Natural Sciences, Department of Physics

Professor of Theoretical Physics
 
 
 
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Contact

 

+44 (0)20 7594 1527c.contaldi

 
 
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Location

 

505Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Margalit:2020:10.1103/PhysRevD.102.083506,
author = {Margalit, A and Contaldi, CR and Pieroni, M},
doi = {10.1103/PhysRevD.102.083506},
journal = {Physical Reveiw D},
title = {Phase decoherence of gravitational wave backgrounds},
url = {http://dx.doi.org/10.1103/PhysRevD.102.083506},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Metric perturbations affect the phase of gravitational waves as theypropagate through the inhomogeneous universe. This effect causes StochasticGravitational Wave Backgrounds (SGWBs) to lose any phase coherence that mayhave been present at emission or horizon entry. We show that, for a standardcosmological model, this implies complete loss of coherence above frequencies$f \sim 10^{-12}$ Hz. The result is that any attempts to map SGWBs usingphase-coherent methods have no foreseeable applications. Incoherent methodsthat solve directly for the intensity of the SGWBs are the only methods thatcan reconstruct the angular dependence of any SGWB.
AU  - Margalit,A
AU  - Contaldi,CR
AU  - Pieroni,M
DO  - 10.1103/PhysRevD.102.083506
PY  - 2020///
TI  - Phase decoherence of gravitational wave backgrounds
T2  - Physical Reveiw D
UR  - http://dx.doi.org/10.1103/PhysRevD.102.083506
UR  - http://arxiv.org/abs/2004.01727v1
UR  - http://hdl.handle.net/10044/1/81981
ER  -
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