Fri - 05/30/25

There is no new related paper today

There is no new related paper today

  1. [] - Title: Thermodynamics of four-dimensional regular black holes with an infinite tower of regularized curvature corrections - Adolfo Cisterna, Mokhtar Hassaine, Ulises Hernandez-Vera

Thu - 05/29/25

There is no new related paper today

There is no new related paper today

  1. [] - Title: The old problem of the cosmological constant solved? - Jan Novák, Oem Trivedi

Wed - 05/28/25

There is no new related paper today

There is no new related paper today

  1. [] - Title: It from ETH: Multi-interval Entanglement and Replica Wormholes from Large-$c$ BCFT Ensemble - Hao Geng, Ling-Yan Hung, Yikun Jiang

Tue - 05/27/25

**Title:

      The primordial angular power spectrum from the alternative mass function in loop quantum cosmology**  - **Authors:** Abolhassan Mohammadi, Bao-Fei Li, Tao Zhu  - **Subjects:** Subjects: General Relativity and Quantum Cosmology (gr-qc)  - **Arxiv link:** [https://arxiv.org/abs/](https://arxiv.org/abs/)  - **Abstract**  We investigate the cosmological impacts of the alternative effective mass function of the modified Mukhanov-Sasaki equation in loop quantum cosmology, which is obtained from the polymerization of the classical mass function derived in the comoving gauge. This alternative effective mass function is distinct from those in the dressed metric and the hybrid approaches and is able to generate a new structure in the primordial power spectrum. After taking the Starobinsky potential and employing a particular polymerization ansatz for the inverse Hubble rate, the effective mass function is characterized by a free parameter $\xi$. When $\xi \ge 0.1$, there appears a wave-packet structure in the region preceding the almost scale invariant regime of the power spectrum and both the location and the height of the wave packet are affected by the choice of $\xi$. For the angular power spectrum, we find $\xi=0.2$ provides the best-fit curve to the result from the $\Lambda$CDM model. Our study presents a concrete example in which the fine structure of the primordial power spectrum sensitively relies on the parameters in the polymerization ansatz.

There is no new related paper today

  1. [] - Title: Einstein Maxwell Scalar Black Hole: Thermodynamic Properties with Logarithmic Barrow Entropy - Ritabrata Biswas, Satyajit Pal

Mon - 05/26/25

**Title:

      The primordial angular power spectrum from the alternative mass function in loop quantum cosmology**  - **Authors:** Abolhassan Mohammadi, Bao-Fei Li, Tao Zhu  - **Subjects:** Subjects: General Relativity and Quantum Cosmology (gr-qc)  - **Arxiv link:** [https://arxiv.org/abs/](https://arxiv.org/abs/)  - **Abstract**  We investigate the cosmological impacts of the alternative effective mass function of the modified Mukhanov-Sasaki equation in loop quantum cosmology, which is obtained from the polymerization of the classical mass function derived in the comoving gauge. This alternative effective mass function is distinct from those in the dressed metric and the hybrid approaches and is able to generate a new structure in the primordial power spectrum. After taking the Starobinsky potential and employing a particular polymerization ansatz for the inverse Hubble rate, the effective mass function is characterized by a free parameter $\xi$. When $\xi \ge 0.1$, there appears a wave-packet structure in the region preceding the almost scale invariant regime of the power spectrum and both the location and the height of the wave packet are affected by the choice of $\xi$. For the angular power spectrum, we find $\xi=0.2$ provides the best-fit curve to the result from the $\Lambda$CDM model. Our study presents a concrete example in which the fine structure of the primordial power spectrum sensitively relies on the parameters in the polymerization ansatz.

There is no new related paper today

  1. [] - Title: Einstein Maxwell Scalar Black Hole: Thermodynamic Properties with Logarithmic Barrow Entropy - Ritabrata Biswas, Satyajit Pal

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