Fri - 11/10/23

The Milgromian acceleration and the cosmological constant from precanonical quantum gravity

  • Authors: Igor V. Kanatchikov, Valery A. Kholodnyi
  • Subjects: General Relativity and Quantum Cosmology (gr-qc)
  • Arxiv link: https://arxiv.org/abs/2311.05525
  • Abstract We show that the Milgromian acceleration of MOND and the cosmological constant can be understood and quantified as the effects of quantum fluctuations of spin connection which are described by precanonical quantum gravity put forward by one of us earlier. We also show that a MOND-like modification of Newtonian dynamics at small accelerations emerges from this picture in the non-relativistic approximation.

There is no new related paper today

  1. [2311.05483] - Probing the curvature of the cosmos from quantum entanglement due to gravity - Suddhasattwa Brahma, Abhinove Nagarajan Seenivasan

  2. [2311.04969] - Instantons in sine-Liouville theory - Sergei Alexandrov, Raghu Mahajan, Ashoke Sen

  3. [2311.05382] - Real time holography for higher spin theories - Zezhuang Hao

Thu - 11/09/23

There is no new related paper today

There is no new related paper today

  1. [2311.04680] - Holographic Einstein Rings of Black Holes in Scalar-Tensor-Vector Gravity - Xiao-Xiong Zeng, M. Israr Aslam, Rabia Saleem, Xin-Yun Hu

  2. [2311.04277] - The Complexity of Being Entangled - Stefano Baiguera, Shira Chapman, Giuseppe Policastro, Tal Schwartzman

  3. [2311.04281] - Algebraic ER=EPR and Complexity Transfer - Netta Engelhardt, Hong Liu

Wed - 11/08/23

Microscopic interpretation of generalized entropy

  • Authors: Shin’ichi Nojiri, Sergei D. Odintsov, Tanmoy Paul
  • Subjects: General Relativity and Quantum Cosmology (gr-qc); Statistical Mechanics (cond-mat.stat-mech); High Energy Physics - Theory (hep-th)
  • Arxiv link: https://arxiv.org/abs/2311.03848
  • Abstract Generalized entropy, that has been recently proposed, puts all the known and apparently different entropies like The Tsallis, the R'{e}nyi, the Barrow, the Kaniadakis, the Sharma-Mittal and the loop quantum gravity entropy within a single umbrella. However, the microscopic origin of such generalized entropy as well as its relation to thermodynamic system(s) is not clear. In the present work, we will provide a microscopic thermodynamic explanation of generalized entropy(ies) from canonical and grand-canonical ensembles. It turns out that in both the canonical and grand-canonical descriptions, the generalized entropies can be interpreted as the statistical ensemble average of a series of microscopic quantity(ies) given by various powers of $\left(-k\ln{\rho}\right)^n$ (with $n$ being a positive integer and $\rho$ symbolizes the phase space density of the respective ensemble), along with a term representing the fluctuation of Hamiltonian and number of particles of the system under consideration (in case of canonical ensemble, the fluctuation on the particle number vanishes).

There is no new related paper today

  1. [2311.03443] - The S-matrix and boundary correlators in flat space - Diksha Jain, Suman Kundu, Shiraz Minwalla, Onkar Parrikar, Siddharth G. Prabhu, Pushkal Shrivastava

Tue - 11/07/23

There is no new related paper today

There is no new related paper today

  1. [2311.01501] - A Universal Pattern in Quantum Gravity at Infinite Distance - Alberto Castellano, Ignacio Ruiz, Irene Valenzuela

  2. [2311.01536] - Stringy Evidence for a Universal Pattern at Infinite Distance - Alberto Castellano, Ignacio Ruiz, Irene Valenzuela

  3. [2311.01952] - On the algebraic meaning of quantum gravity for closed Universes - Cesar Gomez

Mon - 11/06/23

There is no new related paper today

There is no new related paper today

  1. [2311.01501] - A Universal Pattern in Quantum Gravity at Infinite Distance - Alberto Castellano, Ignacio Ruiz, Irene Valenzuela

  2. [2311.01536] - Stringy Evidence for a Universal Pattern at Infinite Distance - Alberto Castellano, Ignacio Ruiz, Irene Valenzuela

  3. [2311.01952] - On the algebraic meaning of quantum gravity for closed Universes - Cesar Gomez

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