Fri - 09/22/23

There is no new related paper today

There is no new related paper today

  1. [2309.11551] - Demystifying the Emergence Proposal - Ralph Blumenhagen, Niccolò Cribiori, Aleksandar Gligovic, Antonia Paraskevopoulou

  2. [2309.11554] - The Emergent M-theory Limit - Ralph Blumenhagen, Niccolò Cribiori, Aleksandar Gligovic, Antonia Paraskevopoulou

Thu - 09/21/23

There is no new related paper today

There is no new related paper today

  1. [2309.10934] - Quantum gravity, the cosmological constant, and parity transformation - Michael Bishop, Peter Martin, Douglas Singleton

  2. [2309.10846] - The Virasoro Minimal String - Scott Collier, Lorenz Eberhardt, Beatrix Mühlmann, Victor A. Rodriguez

  3. [2309.11116] - Gravitational dynamics from collective field theory - Robert de Mello Koch

  4. [2309.11362] - BBBW on the spindle - Antonio Amariti, Salvo Mancani, Davide Morgante, Nicolò Petri, Alessia Segati

Wed - 09/20/23

There is no new related paper today

There is no new related paper today

  1. [2309.10535] - Causality of Photon Propagation under Dominant Energy Condition in Non-linear Electrodynamics - Shinya Tomizawa, Ryotaku Suzuki

  2. [2309.10024] - Gopakumar-Vafa Invariants and the Emergent String Conjecture - Tom Rudelius

  3. [2309.10785] - Quantum Gravity from dynamical metric fluctuations - Jan M. Pawlowski, Manuel Reichert

Tue - 09/19/23

There is no new related paper today

There is no new related paper today

  1. [2309.08694] - Higher dimensional energetic causal sets - Vasco Gil Gomes, Marina Cortês, Andrew R. Liddle

  2. [2309.09105] - Distinguishable consequence of classical gravity on quantum matter - Serhii Kryhin, Vivishek Sudhir

  3. [2309.09382] - Reframing the Event Horizon: The Harlow-Hayden Computational Approach to the Firewall Paradox - Galina Weinstein

  4. [2309.09391] - Towards a dual formulation of quantum gravity via metric-curvature bijections - Praveen Dennis Xavier

  5. [2309.09439] - Euclidean and Hamiltonian Thermodynamics for Regular Black Holes - Fil Simovic, Ioannis Soranidis

  6. [2309.08818] - A supersymmetric SYK model with a curious low energy behavior - Anna Biggs, Juan Maldacena, Vladimir Narovlansky

Mon - 09/18/23

The Semiclassical Approximation: Its Application to Holography and the Information Paradox

  • Authors: Rifath Khan
  • Subjects: General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th)
  • Arxiv link: https://arxiv.org/abs/2309.08116
  • Abstract In this research, we explore the semiclassical approximation to canonical quantum gravity and how a classical background emerges from the Wheeler-DeWitt (WDW) states. By employing the Wigner functional analysis, we derive the backreacted Einstein-Hamilton-Jacobi equation as an approximation to the WDW equation, along with the requisite validity conditions. We then apply this understanding to both AdS/CFT and dS/CFT correspondences in conjunction with Cauchy slice holography, to explain how the bulk is encoded in the correlation functions of the dual field theory. We then explain an appropriate description for scenarios in which gravity behaves quantum mechanically in certain regions of spacetime and explain its relation to subregion holography. We derive the validity conditions for gravity to be semiclassical near any co-dimension 1 time-like surface and employ these conditions to explore the black hole information paradox. Our analysis suggests that for evaporating black holes, there might be a violation of semiclassical gravity in the near-horizon region close to the Page time, although this is contingent upon certain assumptions. This also provides insights into the fate of information trapped within evaporating black holes. We then explore this issue from the perspectives of both external and infalling observers. We then explain how to employ the framework of Cauchy slice holography to study the retrieval of information from evaporating black holes, presenting a comprehensive approach to tackle this complex issue in quantum gravity.

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