Zobrazeno 1 - 10
of 562
pro vyhledávání: '"Parity asymmetry"'
Autor:
Gaztañaga, Enrique, Kumar, K. Sravan
The proposal of Direct-Sum Quantum Field Theory (DQFT) offers a new perspective for quantum fields by combining parity and time reversal operations, blurring the distinction between quantum past and future while preserving causality. This approach pr
Externí odkaz:
http://arxiv.org/abs/2403.05587
Autor:
Kumar, K. Sravan, Marto, João
Although the cosmic microwave background (CMB) is largely understood to be homogeneous and isotropic, the CMB angular power spectra present anomalies that seem to break down parity symmetry at large angular scales. We argue that the primordial scalar
Externí odkaz:
http://arxiv.org/abs/2209.03928
Autor:
Creswell, James, Naselsky, Pavel
The largest anisotropy in the cosmic microwave background (CMB) is the 3 mK kinematic dipole reflecting our motion with respect to the CMB frame and pointed in the direction $(l, b) = (264^\circ, +48^\circ)$ in Galactic coordinates. We introduce the
Externí odkaz:
http://arxiv.org/abs/2105.08658
Autor:
Seto, Naoki
Publikováno v:
Phys. Rev. Lett. 125, 251101 (2020)
We discuss exploration for isotropic gravitational wave backgrounds around 1 mHz by correlation analysis, targeting both parity odd and even polarization modes. Even though the space interferometer LISA alone cannot probe the two modes due to cancell
Externí odkaz:
http://arxiv.org/abs/2009.02928
We propose a framework of Finsler space-time to explain the observed parity asymmetry and the power deficit in the low-$\ell$ ($2\leqslant \ell \leqslant 29$) multipole range of cosmic microwave background (CMB) temperature anisotropies. In the $3+1$
Externí odkaz:
http://arxiv.org/abs/1806.11425
Publikováno v:
Physics Letters B, Volume 757, p. 445-453 (2016)
Both WMAP and Planck data show a significant odd-multipole preference in the large scales of the cosmic microwave background (CMB) temperature anisotropies. If this pattern originates from cosmological effects, then it can be considered a crucial clu
Externí odkaz:
http://arxiv.org/abs/1512.00591
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Zhao, Wen
Publikováno v:
Phys. Rev. D 89, 023010 (2014)
Parity violation in the cosmic microwave background (CMB) radiation has been confirmed by recent Planck observation. In this paper, we extend our previous work [P. Naselsky et al. Astrophys. J. {\bf 749}, 31 (2012)] on the directional properties of C
Externí odkaz:
http://arxiv.org/abs/1306.0955
Publikováno v:
Phys.Rev.D83:103508,2011
The temperature fluctuations of the Cosmic Microwave Background (CMB) are supposed to be distributed randomly in both magnitude and phase, following to the simplest model of inflation. In this paper, we look at the odd and even multipoles of the sphe
Externí odkaz:
http://arxiv.org/abs/1103.6135
Autor:
Kim, Jaiseung, Naselsky, Pavel
Publikováno v:
Astrophysical Journal Letters 714 (2010) L265-L267
We have investigated non-Gaussianity of our early Universe by comparing the parity asymmetry of the WMAP power spectrum with simulations. We find that odd-parity preference of the WMAP data (2<= l <=18) is anomalous at 4-in-1000 level. We find it lik
Externí odkaz:
http://arxiv.org/abs/1001.4613