Gauge reduction with respect to simplicity constraint in all dimensional loop quantum gravity [PDF]
Physical Review D, 2022 In this paper, we are going to discuss the gauge reduction with respect to the simplicity constraint in both classical and quantum theory of all dimensional loop quantum gravity.
Gaoping Long, Xiangdong Zhang
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The kinematical Hilbert space of loop quantum gravity from BF theories [PDF]
Classical and Quantum Gravity, 2011 In this work, it is demonstrated how the kinematical Hilbert space of Loop Quantum Gravity (LQG) can be inferred from the configuration space of BF theories via the imposition of the Hamiltonian constraints. In particular, it is outlined how the projection to the representations associated with Ashtekar-Barbero connections provides the correct ...
Francesco Cianfrani
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Loop quantum gravity and quanta of space: a primer [PDF]
, 1998 11 ...
Carlo Rovelli, Peush Upadhya
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Causal structure of a recent loop quantum gravity black hole collapse model [PDF]
Physical Review D, 2021 The causal structure of the recent loop quantum gravity black hole collapse model [1] is analysed. As the spacetime is only approximately diffeomorphism invariant up to powers of $\hbar$, it is not straight forwardly possible to find global conformally ...
Johannes Münch
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Twisted geometry coherent states in all dimensional loop quantum gravity: Construction and peakedness properties [PDF]
Physical Review D, 2021 A new family of coherent states for all dimensional loop quantum gravity are proposed, which is based on the generalized twisted geometry parametrization of the phase space of $SO(D+1)$ connection theory.
Gaoping Long +2 more
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Symmetry-reduced Loop Quantum Gravity: Plane Waves, Flat Space and the Hamiltonian Constraint [PDF]
Classical and Quantum GravityAbstract Loop quantum gravity (LQG) methods are applied to a symmetry-reduced model with homogeneity in two dimensions, derived from a Gowdy model. The conditions for the propagation of unidirectional plane gravitational waves at exactly the speed of light are set up in the form of two null Killing equations in terms of Ashtekar ...
Franz Hinterleitner
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Loop quantum gravity’s boundary maps [PDF]
Classical and quantum gravity, 2021 In canonical quantum gravity, the presence of spatial boundaries naturally leads to boundary quantum states, representing quantum boundary conditions for the bulk fields.
Qiang Chen, E. Livine
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Constraining the loop quantum gravity parameter space from phenomenology
Physics Letters B, 2018 Development of quantum gravity theories rarely takes inputs from experimental physics. In this letter, we take a small step towards correcting this by establishing a paradigm for incorporating putative quantum corrections, arising from canonical quantum gravity (QG) theories, in deriving \textit{falsifiable} modified dispersion relations (MDRs) for ...
Suddhasattwa Brahma, Michele Ronco
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Superposition type coherent states in all dimensional loop quantum gravity [PDF]
Physical Review D, 2021 We propose a new kind of coherent state for the general $SO(D+1)$ formulation of loop quantum gravity in the $(1+D)$-dimensional space-time. Instead of Thiemann's coherent state for $SO(D+1)$ gauge theory, our coherent spin-network state is given by ...
Gaoping Long +2 more
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Primordial regular black holes as all the dark matter. II. Non-time-radial-symmetric and loop quantum gravity-inspired metrics [PDF]
Physical Review DIt is a common belief that a theory of quantum gravity should ultimately cure curvature singularities which are inevitable within General Relativity, and plague for instance the Schwarzschild and Kerr metrics, usually considered as prototypes for ...
Marco Calzà +2 more
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