Gyroscopic gravitational memory
Abstract We study the motion of a gyroscope located far away from an isolated gravitational source in an asymptotically flat spacetime. As seen from a local frame tied to distant stars, the gyroscope precesses when gravitational waves cross its path, resulting in a net ‘orientation memory’ that carr...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-11-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP11(2023)057 |
| _version_ | 1797199671955816448 |
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| author | Ali Seraj Blagoje Oblak |
| author_facet | Ali Seraj Blagoje Oblak |
| author_sort | Ali Seraj |
| collection | DOAJ |
| description | Abstract We study the motion of a gyroscope located far away from an isolated gravitational source in an asymptotically flat spacetime. As seen from a local frame tied to distant stars, the gyroscope precesses when gravitational waves cross its path, resulting in a net ‘orientation memory’ that carries information on the wave profile. At leading order in the inverse distance to the source, the memory consists of two terms: the first is linear in the metric perturbation and coincides with the spin memory effect, while the second is quadratic and measures the net helicity of the wave burst. Both are closely related to symmetries of the gravitational radiative phase space at null infinity: spin memory probes superrotation charges, while helicity is the canonical generator of local electric-magnetic duality on the celestial sphere. |
| first_indexed | 2024-03-11T11:08:24Z |
| format | Article |
| id | doaj.art-5ac22c7ba4384fcbb1884845567a066d |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-04-24T07:19:28Z |
| publishDate | 2023-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-5ac22c7ba4384fcbb1884845567a066d2024-04-21T11:05:46ZengSpringerOpenJournal of High Energy Physics1029-84792023-11-0120231112410.1007/JHEP11(2023)057Gyroscopic gravitational memoryAli Seraj0Blagoje Oblak1Centre for Gravitational Waves, Université Libre de Bruxelles, International Solvay InstitutesCPHT, CNRS, Ecole Polytechnique, IP ParisAbstract We study the motion of a gyroscope located far away from an isolated gravitational source in an asymptotically flat spacetime. As seen from a local frame tied to distant stars, the gyroscope precesses when gravitational waves cross its path, resulting in a net ‘orientation memory’ that carries information on the wave profile. At leading order in the inverse distance to the source, the memory consists of two terms: the first is linear in the metric perturbation and coincides with the spin memory effect, while the second is quadratic and measures the net helicity of the wave burst. Both are closely related to symmetries of the gravitational radiative phase space at null infinity: spin memory probes superrotation charges, while helicity is the canonical generator of local electric-magnetic duality on the celestial sphere.https://doi.org/10.1007/JHEP11(2023)057Classical Theories of GravityDuality in Gauge Field TheoriesSpace-Time SymmetriesGauge Symmetry |
| spellingShingle | Ali Seraj Blagoje Oblak Gyroscopic gravitational memory Journal of High Energy Physics Classical Theories of Gravity Duality in Gauge Field Theories Space-Time Symmetries Gauge Symmetry |
| title | Gyroscopic gravitational memory |
| title_full | Gyroscopic gravitational memory |
| title_fullStr | Gyroscopic gravitational memory |
| title_full_unstemmed | Gyroscopic gravitational memory |
| title_short | Gyroscopic gravitational memory |
| title_sort | gyroscopic gravitational memory |
| topic | Classical Theories of Gravity Duality in Gauge Field Theories Space-Time Symmetries Gauge Symmetry |
| url | https://doi.org/10.1007/JHEP11(2023)057 |
| work_keys_str_mv | AT aliseraj gyroscopicgravitationalmemory AT blagojeoblak gyroscopicgravitationalmemory |