Role of Quantum Entropy and Establishment of H-Theorems in the Presence of Graviton Sinks for Manifestly-Covariant Quantum Gravity [PDF]
Entropy, 2019 Based on the introduction of a suitable quantum functional, identified here with the Boltzmann–Shannon entropy, entropic properties of the quantum gravitational field are investigated in the framework of manifestly-covariant quantum gravity theory.
Massimo Tessarotto, Claudio Cremaschini
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The Quantum Regularization of Singular Black-Hole Solutions in Covariant Quantum Gravity [PDF]
Entropy, 2021 An excruciating issue that arises in mathematical, theoretical and astro-physics concerns the possibility of regularizing classical singular black hole solutions of general relativity by means of quantum theory.
Massimo Tessarotto, Claudio Cremaschini
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Generalized Lagrangian Path Approach to Manifestly-Covariant Quantum Gravity Theory [PDF]
Entropy, 2018 A trajectory-based representation for the quantum theory of the gravitational field is formulated. This is achieved in terms of a covariant Generalized Lagrangian-Path (GLP) approach which relies on a suitable statistical representation of Bohmian ...
Massimo Tessarotto, Claudio Cremaschini
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The Heisenberg Indeterminacy Principle in the Context of Covariant Quantum Gravity [PDF]
Entropy, 2020 The subject of this paper deals with the mathematical formulation of the Heisenberg Indeterminacy Principle in the framework of Quantum Gravity. The starting point is the establishment of the so-called time-conjugate momentum inequalities holding for non-
Massimo Tessarotto, Claudio Cremaschini
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The Dynamical Evolution Parameter in Manifestly Covariant Quantum Gravity Theory [PDF]
EntropyA remarkable feature of manifestly covariant quantum gravity theory (CQG-theory) is represented by its unconstrained Hamiltonian structure expressed in evolution form.
Claudio Cremaschini
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Invariant Boltzmann-Shannon Entropy for Black-Holes: A Manifestly-Covariant Canonical Quantum-Gravity Approach [PDF]
EntropyA novel theoretical study of Boltzmann-Shannon entropy arising in information-statistic theory applied to black-hole physics is proposed. The invariant setting implemented is represented by the manifestly-covariant quantum-gravity theory expressed in ...
Claudio Cremaschini +2 more
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Quantum-Wave Equation and Heisenberg Inequalities of Covariant Quantum Gravity
Entropy, 2017 Key aspects of the manifestly-covariant theory of quantum gravity (Cremaschini and Tessarotto 2015–2017) are investigated. These refer, first, to the establishment of the four-scalar, manifestly-covariant evolution quantum wave equation, denoted as ...
Claudio Cremaschini, Massimo Tessarotto
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A Covariant Polymerized Scalar Field in Semi-Classical Loop Quantum Gravity
Universe, 2022 We propose a new polymerization scheme for scalar fields coupled to gravity. It has the advantage of being a (non-bijective) canonical transformation of the fields, and therefore ensures the covariance of the theory.
Rodolfo Gambini +2 more
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Quantum Gravity Spacetime: Universe vs. Multiverse [PDF]
EntropyStarting from the realization that the theory of quantum gravity (QG) cannot be deterministic due to its intrinsic quantum nature, the requirement is posed that QG should fulfill a suitable Heisenberg Generalized Uncertainty Principle (GUP) to be ...
Massimo Tessarotto, Claudio Cremaschini
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New perspectives on covariant quantum error correction [PDF]
Quantum, 2021 Covariant codes are quantum codes such that a symmetry transformation on the logical system could be realized by a symmetry transformation on the physical system, usually with limited capability of performing quantum error correction (an important case ...
Sisi Zhou, Zi-Wen Liu, Liang Jiang
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