Laser Based, Single Trapped Ion Optical Atomic Clock with 1 × 10−17 Uncertainty Evaluated using the Time-Dilation Effect

Author(s):  
A. A. Madej ◽  
P. Dubé ◽  
M. Tibbo ◽  
J. E. Bernard
2003 ◽  
Vol 214 ◽  
pp. 339-340
Author(s):  
Rongfeng Shen ◽  
Liming Song

We determine the characteristic variability time scales for 410 bright long GRBs by locating the maximums of their Power Density Spectra (PDSs) defined and calculated in the time domain. The averaged characteristic variability time scale decreases with peak fluxe. This is consistent with the time dilation effect expected by cosmological origin of GRBs. The occurrence distribution of the characteristic variability time scale shows bimodality, which might be interpreted as that the long GRB sample is composed of two sub-classes with different intrinsic characteristic variability time scales.


2016 ◽  
Vol 87 (5) ◽  
pp. 053112 ◽  
Author(s):  
Peter D. D. Schwindt ◽  
Yuan-Yu Jau ◽  
Heather Partner ◽  
Adrian Casias ◽  
Adrian R. Wagner ◽  
...  

Author(s):  
G. SAATHOFF ◽  
S. KARPUK ◽  
S. REINHARDT ◽  
H. BUHR ◽  
T. W. HÄNSCH ◽  
...  
Keyword(s):  

2020 ◽  
Vol 8 (3-4) ◽  
pp. 299-315
Author(s):  
Ezgi Özoğlu ◽  
Roland Thomaschke

Human timing and interoception are closely coupled. Thus, temporal illusions like, for example, emotion-induced time dilation, are profoundly affected by interoceptive processes. Emotion-induced time dilation refers to the effect when emotion, especially in the arousal dimension, leads to the systematic overestimation of intervals. The close relation to interoception became evident in previous studies which showed increased time dilation when participants focused on interoceptive signals. In the present study we show that individuals with particularly high interoceptive accuracy are able to shield their timing functions to some degree from interference by arousal. Participants performed a temporal bisection task with low-arousal and high-arousal stimuli, and subsequently reported their interoceptive accuracy via a questionnaire. A substantial arousal-induced time dilation effect was observed, which was negatively correlated with participants’ interoceptive accuracy. Our findings support a pivotal role of interoception in temporal illusions, and are discussed in relation to neuropsychological accounts of interoception.


Physics ◽  
2020 ◽  
Vol 2 (4) ◽  
pp. 587-595
Author(s):  
Martin Tajmar ◽  
Lance L. Williams

Kaluza was the first to realize that the four-dimensional gravitational field of general relativity and the classical electromagnetic field behave as if they were components of a five-dimensional gravitational field. We present a novel experimental test of the macroscopic classical interpretation of the Kaluza fifth dimension. Our experiment design probes a key feature of Kaluza unification—that electric charge is identified with motion in the fifth dimension. Therefore, we tested for a time dilation effect on an electrically charged clock. This test can also be understood as a constraint on time dilation from a constant electric potential of any origin. This is only the second such test of time dilation under electric charge reported in the literature, and a null result was obtained here. We introduce the concept of a charged clock in the Kaluza context, and discuss some ambiguities in its interpretation. We conclude that a classical, macroscopic interpretation of the Kaluza fifth dimension may require a timelike signature in the five-dimensional metric, and the associated absence of a rest frame along the fifth coordinate.


Author(s):  
E.A. Burt ◽  
S. Taghavi-Larigani ◽  
R.L. Tjoelker
Keyword(s):  

2019 ◽  
Vol 19 (3) ◽  
pp. 4
Author(s):  
Luca Lo Verde ◽  
David Alais ◽  
David Charles Burr ◽  
Maria Concetta Morrone ◽  
Hamish MacDougall ◽  
...  

1996 ◽  
Vol 165 ◽  
pp. 467-476
Author(s):  
Gerald J. Fishman

Gamma-ray bursts remain one of the greatest mysteries in astrophysics in spite of new and more detailed observations made with the BATSE experiment on the Compton Observatory. The new observation with the greatest impact has been the observed isotropic distribution of bursts along with a deficiency of the weak bursts which would be expected from a homogeneous burst distribution. This is not compatible with any known Galactic population of objects. Other recent important observations include an enormous variety of burst morphologies and gamma-ray burst photons extending to GeV energies. A time dilation effect has also been reported to be observed in gamma-ray bursts.


Nature ◽  
2021 ◽  
Vol 595 (7865) ◽  
pp. 43-47
Author(s):  
E. A. Burt ◽  
J. D. Prestage ◽  
R. L. Tjoelker ◽  
D. G. Enzer ◽  
D. Kuang ◽  
...  
Keyword(s):  

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