Isotropy of the Velocity of Light and the Sagnac Effect

Pascual-Sánchez, J. F.; Miguel, A. San; Vicente, F.

doi:10.1007/978-94-017-0528-8_11

Cited by 6 publications

(8 citation statements)

References 20 publications

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“…While the world velocity of the particle depends on the Earth's rotation, the measurable velocity cannot exceed c (see explanations given in Refs. [52][53][54]). Some problems connected with the Sagnac effect have also considered in Refs.…”

Section: Manifestations Of Earth's Rotationmentioning

confidence: 99%

Manifestations of the rotation and gravity of the Earth in high-energy physics experiments

2016

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The inertial (due to rotation) and the gravitational fields of the Earth affect the motion of an elementary particle and its spin dynamics. This influence is not negligible and should be taken into account in high-energy physics experiments. Earth's influence is manifest in perturbations in the particle motion, in an additional precession of the spin, and in a change of the constitutive tensor of the Maxwell electrodynamics. Bigger corrections are oscillatory and their contributions average to zero. Other corrections due to the inhomogeneity of the inertial field are not oscillatory but they are very small and may be important only for the storage ring electric dipole moment experiments. Earth's gravity causes the Newton-like force, the reaction force provided by a focusing system, and additional torques acting on the spin. However, there are no observable indications of the electromagnetic effects due to Earth's gravity.

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Section: Manifestations Of Earth's Rotationmentioning

confidence: 99%

Manifestations of the rotation and gravity of the Earth in high-energy physics experiments

2016

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“…A number of studies suggest that locally co-moving inertial frames, each of which manifest differential simultaneity, will generate an overt Sagnac effect when integrated over a full rotation, suggesting that differential simultaneity is present in rotating frames. [64][65][66][67]92 Other studies support differential simultaneity in rotating frames by suggesting that the time gap (which results from differential simultaneity) generates the observed Sagnac effect. 61,[93][94][95][96][97] The time gap arises when time is offset with distance over a circumference, which generates a time discontinuity between the adjacent starting and ending points that were used for calculating the time offset.…”

Section: Discussionmentioning

confidence: 94%

“…This description of how Sagnac equations are linked to relativistic conditions is important because multiple papers in the literature state that a variant Sag 1AS equation is the valid Sagnac equation, e.g. see ( [62][63][64][65][66][67] ). Sag 1AS has been referred to as the relativistic form of the Sagnac equation.…”

Section: Sagnac Equations Form a Relativistic Seriesmentioning

confidence: 99%

Optical data implies a null simultaneity test theory parameter in rotating frames

Kipreos

Balachandran

2021

Mod. Phys. Lett. A

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The simultaneity framework describes the relativistic interaction of time with space. The two major proposed simultaneity frameworks are differential simultaneity, in which time is offset with distance in “moving” or rotating frames for each “stationary” observer, and absolute simultaneity, in which time is not offset with distance. We use the Mansouri and Sexl test theory to analyze the simultaneity framework in rotating frames in the absence of spacetime curvature. The Mansouri and Sexl test theory has four parameters. Three parameters describe relativistic effects. The fourth parameter, [Formula: see text], was described as a convention on clock synchronization. We show that [Formula: see text] is not a convention, but is instead a descriptor of the simultaneity framework whose value can be determined from the extent of anisotropy in the unidirectional one-way speed of light. In rotating frames, one-way light speed anisotropy is described by the Sagnac effect equation. We show that four published Sagnac equations form a relativistic series based on relativistic kinematics and simultaneity framework. Only the conventional Sagnac effect equation, and its associated isotropic two-way speed of light, is found to match high-resolution optical data. Using the conventional Sagnac effect equation, we show that [Formula: see text] has a null value in rotating frames, which implies absolute simultaneity. Introducing the empirical Mansouri and Sexl parameter values into the test theory equations generates the rotational form of the absolute Lorentz transformation, implying that this transformation accurately describes rotational relativistic effects.

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“…However, these approaches do not generate the conventional Sag 2AS equation. [61][62][63][64][65] The majority of LCIF approaches generate Sag 1AS , [61][62][63][64] which is associated with the anisotropic two-way speed of light of the Langevin metric and Post rT that is invalidated by optical resonator data. Approaches to derive the Sagnac effect by utilizing the Langevin metric or Minkowski (LT) spacetime in a GR-based approach in the absence of spacetime curvature also generate the experimentally invalidated Sag 0AS or Sag 1AS 66, 67 (and see Sec.…”

Section: Application Of the Lt To Rotating Framesmentioning

confidence: 99%

Assessment of the relativistic rotational transformations

Kipreos

Balachandran

2021

Mod. Phys. Lett. A

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Rotational transformations describe relativistic effects in rotating frames. There are four major kinematic rotational transformations: the Langevin metric; Post transformation; Franklin transformation; and the rotational form of the absolute Lorentz transformation. The four transformations exhibit different combinations of relativistic effects and simultaneity frameworks, and generate different predictions for relativistic phenomena. Here, the predictions of the four rotational transformations are compared with recent optical data that has sufficient resolution to distinguish the transformations. We show that the rotational absolute Lorentz transformation matches diverse relativistic optical and non-optical rotational data. These include experimental observations of length contraction, directional time dilation, anisotropic one-way speed of light, isotropic two-way speed of light, and the conventional Sagnac effect. In contrast, the other three transformations do not match the full range of rotating-frame relativistic observations.

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Isotropy of the Velocity of Light and the Sagnac Effect

Cited by 6 publications

References 20 publications

Manifestations of the rotation and gravity of the Earth in high-energy physics experiments

Manifestations of the rotation and gravity of the Earth in high-energy physics experiments

Optical data implies a null simultaneity test theory parameter in rotating frames

Assessment of the relativistic rotational transformations

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