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Related papers: Gravitational clock compass in General Relativity

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By extending the framework of the gravitational clock compass we show how a suitably prepared set of clocks can be used to extract information about the gravitational field in the context of General Relativity. Conceptual differences…

General Relativity and Quantum Cosmology · Physics 2020-08-21 Gerald Neumann , Dirk Puetzfeld , Guillermo F. Rubilar

We present an alternative derivation of the gravitational clock compass and show how such a device can be used for the detection of gravitational waves. Explicit compass setups are constructed in special types of space--times, namely for…

General Relativity and Quantum Cosmology · Physics 2020-02-19 Peter A. Hogan , Dirk Puetzfeld

One of geodesy's main tasks is to determine the gravity field of the Earth. High precision clocks have the potential to provide a new tool in a global determination of the Earth's gravitational potential based on the gravitational redshift.…

General Relativity and Quantum Cosmology · Physics 2023-10-19 Dennis Philipp , Eva Hackmann , Jan P. Hackstein , Claus Lämmerzahl

How does one measure the gravitational field? We give explicit answers to this fundamental question and show how all components of the curvature tensor, which represents the gravitational field in Einstein's theory of General Relativity,…

General Relativity and Quantum Cosmology · Physics 2019-03-06 Yuri N. Obukhov , Dirk Puetzfeld

The general relativistic gravitomagnetic clock effect involves a coupling between the orbital motion of a test particle and the rotation of the central mass and results in a difference in the proper periods of two counter-revolving…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Herbert I. M. Lichtenegger , Lorenzo Iorio , Bahram Mashhoon

The possibility of detecting the gravitomagnetic clock effect using artificial Earth satellites provides the incentive to develop a more intuitive approach to its derivation. We first consider two test electric charges moving on the same…

General Relativity and Quantum Cosmology · Physics 2010-05-28 Lorenzo Iorio , Herbert I. M. Lichtenegger , Bahram Mashhoon

We survey the role of stable clocks in general relativity. Clock comparisons have provided important tests of the Einstein Equivalence Principle, which underlies metric gravity. These include tests of the isotropy of clock comparisons…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Clifford M. Will

We argue that the time measured by a light clock operating with photons rather than classical light requires a refinement of the standard clock postulate in general relativity. In the presence of a gravitational field, already the one-loop…

General Relativity and Quantum Cosmology · Physics 2009-02-12 Raffaele Punzi , Frederic P. Schuller , Mattias N. R. Wohlfarth

As a consequence of gravitomagnetism, which is a fundamental weak-field prediction of general relativity and ubiquitous in gravitational phenomena, clocks show a difference in their proper periods when moving along identical orbits in…

General Relativity and Quantum Cosmology · Physics 2007-05-23 H. Lichtenegger , W. Hausleitner , F. Gronwald , B. Mashhoon

In general relativity, the picture of spacetime assigns an ideal clock to each worldline. Being ideal, gravitational effects due to these clocks are ignored and the flow of time according to one clock is not affected by the presence of…

Quantum Physics · Physics 2017-05-09 Esteban Castro-Ruiz , Flaminia Giacomini , Časlav Brukner

General relativity predicts that two counter-orbiting clocks around a spinning mass differ in the time required to complete the same orbit. The difference in these two values for the orbital period is generally referred to as the…

General Relativity and Quantum Cosmology · Physics 2024-03-26 Kaye Jiale Li , Kinwah Wu , Ziri Younsi , Joana Teixeira , Dinesh Singh

General relativity predicts that two freely counter-revolving test particles in the exterior field of a central rotating mass take different periods of time to complete the same full orbit; this time difference leads to the gravitomagnetic…

General Relativity and Quantum Cosmology · Physics 2010-11-19 Bahram Mashhoon , Lorenzo Iorio , Herbert Lichtenegger

We outline a mission with the aim of directly detecting the gravitomagnetic field of the Earth. This mission is called Gravity Probe C. Gravity Probe C(lock) is based on a recently discovered and surprisingly large gravitomagnetic clock…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Frank Gronwald , Eleonora Gruber , Herbert Lichtenegger , Roland A. Puntigam

Mass redistribution on Earth due to dynamic processes such as ice melting and sea level rise leads to a changing gravitational field, observable by geodetic techniques. Monitoring this change over time allows us to learn more about our…

General Relativity and Quantum Cosmology · Physics 2025-03-13 Eva Hackmann , Moritz Huckfeldt , Claus Lämmerzahl , Dennis Philipp , Benny Rievers

Clocks play a special role at the interface of general relativity and quantum mechanics. We analyze a clock-interferometry thought experiment and go on to theoretically derive and experimentally test a complementarity relation for quantum…

Quantum Physics · Physics 2018-08-01 Zhifan Zhou , Yair Margalit , Daniel Rohrlich , Yonathan Japha , Ron Folman

Time measured by an ideal clock crucially depends on the gravitational potential and velocity of the clock according to general relativity. Technological advances in manufacturing high-precision atomic clocks have rapidly improved their…

Geophysics · Physics 2017-12-20 J. Müller , D. Dirkx , S. M. Kopeikin , G. Lion , I. Panet , G. Petit , P. N. A. M. Visser

The difference in the proper azimuthal periods of revolution of two standard clocks in direct and retrograde orbits about a central rotating mass is proportional to J/Mc^2, where J and M are, respectively, the proper angular momentum and…

General Relativity and Quantum Cosmology · Physics 2009-10-31 B. Mashhoon , F. Gronwald , F. W. Hehl , D. S. Theiss

The general relativistic gravitomagnetic clock effect, in its simplest form, consists of the non-vanishing difference in the orbital periods of two counter-orbiting objects moving in opposite directions along circular orbits lying in the…

General Relativity and Quantum Cosmology · Physics 2024-10-29 Lorenzo Iorio , Bahram Mashhoon

According to general relativity, clocks are the basic measuring devices needed to probe spacetime geometry. However, it is generally accepted that the mass of clocks capable of measuring small time intervals must be bounded from below. In…

General Relativity and Quantum Cosmology · Physics 2026-03-02 Bruno Arderucio Costa , Yafet E. Sanchez Sanchez

All experiments to date are in remarkable agreement with the predictions of Einstein's theory of gravity, General Relativity. Besides the classical tests, involving light deflection, orbit precession, signal delay, and the gravitational…

General Relativity and Quantum Cosmology · Physics 2023-11-21 Jan Scheumann , Dennis Philipp , Sven Herrmann , Eva Hackmann , Benny Rievers , Javier Ventura-Traveset , Luis Mendes , Claus Lämmerzahl
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