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Black hole entropy in Loop Quantum Gravity

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arxiv gr-qc/0407052 v1 pith:PUEVCYLN submitted 2004-07-14 gr-qc

Black hole entropy in Loop Quantum Gravity

classification gr-qc
keywords quantumareablackentropyformulagravityholeloop
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We calculate the black hole entropy in Loop Quantum Gravity as a function of the horizon area and provide the exact formula for the leading and sub-leading terms. By comparison with the Bekenstein-Hawking formula we uniquely fix the value of the 'quantum of area' in the theory.

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Cited by 10 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Modified Cosmology from Mass-to-Horizon Relation: Observational Bounds

    gr-qc 2026-07 conditional novelty 6.0

    Observational constraints pin the MHR entropy exponent to |m−1|≲10⁻⁴ when γ is fixed, and Bayesian evidence disfavors all tested horizon-entropy extensions relative to ΛCDM.

  2. Gauging Time Reversal Symmetry in Quantum Gravity: Arrow of Time from a Confinement--Deconfinement Transition

    physics.gen-ph 2026-05 unverdicted novelty 6.0

    The emergence of the cosmological arrow of time is identified with a confinement-deconfinement transition in a Z2 lattice gauge theory on LQG spin networks, with the deconfined phase corresponding to a CZX-type SPT phase.

  3. Inflation in unimodular loop quantum cosmology

    gr-qc 2026-07 conditional novelty 5.0

    In unimodular loop quantum cosmology, an α-attractor potential allows a potential-energy-dominated bounce at the Planck scale that is consistent with CMB observations and may show quantum-gravity imprints.

  4. Periodic orbits as probes of charged loop quantum gravity black holes through gravitational waves

    gr-qc 2026-06 unverdicted novelty 5.0

    Periodic orbits in charged LQG black holes produce zoom-whirl gravitational waveforms detectable by future space-based observatories, with features depending on the fixed polymerization parameter.

  5. Scalar-Tensor Gravity as a Probe of Generalized Black Hole Entropy

    gr-qc 2026-05 unverdicted novelty 5.0

    Generalized black-hole entropies are realized via Misner–Sharp mass and Wald entropy in scalar-tensor gravity, yielding distinct Einstein-frame scalar potentials with cosmological implications.

  6. Scalar-Tensor Gravity as a Probe of Generalized Black Hole Entropy

    gr-qc 2026-05 unverdicted novelty 5.0

    Links generalized black hole entropies to scalar-tensor gravity via Misner-Sharp mass and Wald entropy, yielding distinct scalar potentials with cosmological implications.

  7. Towards the consistent perturbative expansion in discrete gravity

    gr-qc 2026-01 conditional novelty 5.0

    A mixed finite-difference action plus a principal-value soft synchronous gauge is claimed to make lattice gravity perturbation theory reproduce continuum gravity at small momenta.

  8. Quasi-dust ekpyrotic scenario in Loop Quantum Cosmology

    gr-qc 2025-09 unverdicted novelty 5.0

    A quasi-dust ekpyrotic two-field model in Loop Quantum Cosmology produces viable primordial power spectra via coupled scalar and tensor perturbations.

  9. Stable initial conditions and analytical investigations of cosmological perturbations in a modified loop quantum cosmology

    gr-qc 2025-05 unverdicted novelty 5.0

    A stable initial state is identified in mLQC-I that diagonalizes the Hamiltonian and minimizes particle creation, with mode functions approximated analytically by Airy or cylindrical functions whose constants are fixe...

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    gr-qc 2026-07 conditional novelty 2.0

    Assuming an extra 'absolute consistency' rule, gravitational-wave validation of the area theorem forces negative entropy corrections, which restricts F(R) gravity and would rule out two axions or an axion plus a graviton.