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Constraints on the Photon Mass with Fast Radio Bursts | | Xue-Feng Wu
; Song-Bo Zhang
; He Gao
; Jun-Jie Wei
; Yuan-Chuan Zou
; Wei-Hua Lei
; Bing Zhang
; Zi-Gao Dai
; Peter Mészáros
; | | Date: |
25 Feb 2016 | | Abstract: | Fast radio bursts (FRBs) are radio bursts characterized by millisecond
durations, high Galactic latitude positions, and anomalously high dispersion
measures. Very recently, the cosmological origin of FRB 150418 has been
confirmed, and FRBs are now strong competitors as cosmological probes. The
simple sharp feature of the FRB signal is ideal for them to probe some of the
fundamental laws of physics. Here we show that by analyzing the delay time
between different frequencies, the FRB data can place stringent upper limits on
the rest mass of the photon. For FRB 150418, one can potentially reach
$m_{gamma} leq 1.6 imes 10^{-48}$ g, which is $10^{21}$ times smaller than
the rest mass of electron, and is about $10^4$ times smaller than that obtained
using other astrophysical sources using the same method. | | Source: | arXiv, 1602.7835 | | Services: | Forum | Review | PDF | Favorites | |
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