New test of weak equivalence principle using polarized light from astrophysical events
New test of weak equivalence principle using polarized light from astrophysical events
复制标题
使用天体物理事件偏振光对弱等效原理的新测试
DOI：
10.1103/physrevd.95.103004
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发表时间：
2017-03
影响因子：
5
通讯作者：
Meszaros Peter
中科院分区：
文献类型：
--
作者：
Wu Xue-Feng;Wei Jun-Jie;Lan Mi-Xiang;Gao He;Dai Zi-Gao;Meszaros Peter
Einstein's weak equivalence principle (WEP) states that any freely falling, uncharged test particle follows the same identical trajectory independent of its internal structure and composition. Since the polarization of a photon is considered to be part of its internal structure, we propose that polarized photons from astrophysical transients, such as gamma-ray bursts (GRBs) and fast radio bursts (FRBs), can be used to constrain the accuracy of the WEP through the Shapiro time delay effect. Assuming that the arrival time delays of photons with different polarizations are mainly attributed to the gravitational potential of the Laniakea supercluster of galaxies, we show that a strict upper limit on the differences of the parametrized post-Newtonian parameter $\ensuremath{\gamma}$ value for the polarized optical emission of GRB 120308A is $\mathrm{\ensuremath{\Delta}}\ensuremath{\gamma}l1.2\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}10}$, for the polarized gamma-ray emission of GRB 100826A is $\mathrm{\ensuremath{\Delta}}\ensuremath{\gamma}l1.2\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}10}$, and for the polarized radio emission of FRB 150807 is $\mathrm{\ensuremath{\Delta}}\ensuremath{\gamma}l2.2\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}16}$. These are the first direct verifications of the WEP for multiband photons with different polarizations. In particular, the result from FRB 150807 provides the most stringent limit to date on a deviation from the WEP, improving by one order of magnitude the previous best result based on Crab pulsar photons with different energies.
Einstein's weak equivalence principle (WEP) states that any freely falling, uncharged test particle follows the same identical trajectory independent of its internal structure and composition. Since the polarization of a photon is considered to be part of its internal structure, we propose that polarized photons from astrophysical transients, such as gamma-ray bursts (GRBs) and fast radio bursts (FRBs), can be used to constrain the accuracy of the WEP through the Shapiro time delay effect. Assuming that the arrival time delays of photons with different polarizations are mainly attributed to the gravitational potential of the Laniakea supercluster of galaxies, we show that a strict upper limit on the differences of the parametrized post-Newtonian parameter $\ensuremath{\gamma}$ value for the polarized optical emission of GRB 120308A is $\mathrm{\ensuremath{\Delta}}\ensuremath{\gamma}l1.2\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}10}$, for the polarized gamma-ray emission of GRB 100826A is $\mathrm{\ensuremath{\Delta}}\ensuremath{\gamma}l1.2\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}10}$, and for the polarized radio emission of FRB 150807 is $\mathrm{\ensuremath{\Delta}}\ensuremath{\gamma}l2.2\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}16}$. These are the first direct verifications of the WEP for multiband photons with different polarizations. In particular, the result from FRB 150807 provides the most stringent limit to date on a deviation from the WEP, improving by one order of magnitude the previous best result based on Crab pulsar photons with different energies.
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DOI：
10.1086/423163
发表时间：
2004-05
期刊：
The Astrophysical Journal
影响因子：
--
作者：
C. Wigger;W. Hajdas;K. Arzner;M. Güdel;A. Zehnder
通讯作者：
C. Wigger;W. Hajdas;K. Arzner;M. Güdel;A. Zehnder
DOI：
10.1142/s0218271815300165
发表时间：
2015-01
期刊：
arXiv: Cosmology and Nongalactic Astrophysics
影响因子：
--
作者：
S. D. Alighieri
通讯作者：
S. D. Alighieri
一般相对论与实验之间的对抗。
影响因子：
40.6
作者：
Will CM
通讯作者：
Will CM
用拉尼亚凯亚超星系团的引力场测试爱因斯坦的等效原理
影响因子：
3.8
作者：
Zhi-Xing Luo;Bo Zhang;Jun-Jie Wei;Xue-Feng Wu
通讯作者：
Xue-Feng Wu
影响因子：
64.8
作者：
J. Greiner;S. Klose;K. Reinsch;H. Schmid;R. Sari;D. Hartmann;C. Kouveliotou;A. Rau;E. Palazzi-E.-P
通讯作者：
J. Greiner;S. Klose;K. Reinsch;H. Schmid;R. Sari;D. Hartmann;C. Kouveliotou;A. Rau;E. Palazzi-E.-P