| Zugriffsnummer | 44353 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Gravitational light deflection in Earth-based laser cavity experiments |
| Autor(in); Institution |
Ulbricht, Sebastian; FPM, Fundamentale Physik für Metrologie, PTB-Braunschweig
Dickmann, Johannes; 4.01, Metrologie für funktionale Nanosysteme, PTB-Braunschweig
Müller, Robert A.; FPM, Fundamentale Physik für Metrologie, PTB-Braunschweig
Kroker, Stefanie; 4.01, Metrologie für funktionale Nanosysteme, PTB-Braunschweig
Surzhykov, Andrey; FPM, Fundamentale Physik für Metrologie, PTB-Braunschweig; Technische Universität Braunschweig, Braunschweig, GERMANY
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| Quelle/Jahr | Physical Review D: 101 (2020), 12, 1 - 7 |
| Artikelnummer | 121501 |
| ISSN | 2470-0010 (PRINT) ; 2470-0029 (ONLINE) |
| DOI | |
| URL | |
| Verlag | Ridge, NY: American Physical Society (APS) |
| Freie Schlagworte | optical cavities ; general relativity ; light deflection |
| Zusammenfassung | As known from Einstein's theory of general relativity, the propagation of light in the presence of a massive object is affected by gravity. In this work, we discuss whether the effect of gravitational light bending can be observed in Earth-based experiments, using high-finesse optical cavities. To do this, we theoretically investigate the dynamics of electromagnetic waves in the spacetime of a homogeneous gravitational field and give an analytical expression for the resulting modifications to Gaussian beam propagation. This theoretical framework is used to calculate the intensity profile at the output of a Fabry-Pérot cavity and to estimate the imprints of Earth's gravity on the cavity output signal. In particular, we found that gravity causes an asymmetry of the output intensity profile. Based on that, we discuss a measurement scheme, that could be realized in facilities like the GEO600 gravitational wave detector and the AEI 10 m detector prototype. |
| Themenbereich der Metrologie | Zeit und Frequenz |