Echoes from beyond: detecting gravitational-wave quantum imprints with LISA
We revisit gravitational wave echoes as a pathway to measuring quantization effects of black hole horizons. In particular, we construct a robust and phenomenologically motivated toy model for black hole reflectivity, enabling us to estimate the detectability of waveform echoes in gravitational wave...
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| Main Authors: | , , , , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
20 June 2025
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| In: |
Physical review
Year: 2025, Volume: 111, Issue: 12, Pages: 1-12 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/k7jh-rhgw |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/k7jh-rhgw Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/k7jh-rhgw 
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| Author Notes: | Nils Deppe, Lavinia Heisenberg, Henri Inchauspé, Lawrence E. Kidder, David Maibach, Sizheng Ma, Jordan Moxon, Kyle C. Nelli, William Throwe, and Nils L. Vu |
| Summary: | We revisit gravitational wave echoes as a pathway to measuring quantization effects of black hole horizons. In particular, we construct a robust and phenomenologically motivated toy model for black hole reflectivity, enabling us to estimate the detectability of waveform echoes in gravitational wave interferometer data. We demonstrate how the frequency information of echoes, upon detection, can be leveraged to probe and constrain the quantum scale associated with the underlying theory of quantum gravity. Our analysis shows that echoes may manifest in LISA data with an estimated signal-to-noise ratio of up to 𝒪(102). For such signals, the frequency features indicative of horizon quantization can be determined with subpercent precision. |
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| Item Description: | Gesehen am 09.12.2025 |
| Physical Description: | Online Resource |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/k7jh-rhgw |