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Anomaly induced effective actions and Hawking radiation
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Anomaly induced effective actions and Hawking radiation
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The quantum stress tensor in the Unruh state for a conformal scalar propagating in a 4D Schwarzschild black hole spacetime is reconstructed in its leading behaviour at infinity and near the horizon by means of an effective action derived by functionally integrating the trace anomaly.
Forward citations
Cited by 9 Pith papers
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Conformally Invariant Corrections to the Anomaly-Induced Effective Action and Black Hole Evaporation in Four Dimensions
A conformally invariant weight-six correction to the anomaly-induced effective action leaves a free parameter in the semiclassical stress tensor near a Schwarzschild black hole, producing quantum hair.
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Breakdown of Semiclassical Gravity in Four-Dimensional Black Hole Evaporation
Semiclassical black hole evaporation in four dimensions produces a thunderbolt singularity signaling breakdown of the effective theory at large distances.
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Macroscopic backreaction of the trace anomaly on classical vacuum backgrounds
Order-reduced backreaction of the trace-anomaly RSET on Schwarzschild gives a naked singularity without compensatory terms and a wormhole throat with them.
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Conformally Invariant Corrections to the Anomaly-Induced Effective Action and Black Hole Evaporation in Four Dimensions
Conformally invariant corrections to the anomaly-induced effective action produce a one-parameter family of quantum hair for Schwarzschild black holes that modifies the near-horizon stress tensor in a static approximation.
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Canonical quantization of massive vector field in Schwarzschild black hole background
Canonical quantization of Proca field in Schwarzschild background with Dirac brackets, Hawking spectrum from Unruh vacuum, and numerical evaluation of condensate in three vacua.
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Learning to Balance Motor Thermal Safety and Quadrupedal Locomotion Performance with Residual Policy
A thermal residual policy on a pre-trained quadruped locomotion controller prevents motor overheating under payload while preserving performance, lasting over 13 minutes on a Unitree A1 versus ~5 minutes for the nomin...
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Trace anomaly, effective approach, and gravitational potential
Anomaly-induced corrections to the Newtonian potential in the Boulware vacuum disagree with effective quantum gravity results unless the long-distance stress tensor asymptotics are altered.
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Learning to Balance Motor Thermal Safety and Quadrupedal Locomotion Performance with Residual Policy
A two-stage RL method adds a residual policy on a thermal model to let a quadruped maintain performance while preventing motor overheating, shown in simulation and on a Unitree A1 carrying 3 kg for over 13 minutes ver...
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Learning to Balance Motor Thermal Safety and Quadrupedal Locomotion Performance with Residual Policy
A two-stage RL framework with a thermal-aware residual policy enables a Unitree A1 quadruped to achieve over 13 minutes of stable locomotion under 3 kg payload versus 5 minutes before overheating with the nominal poli...
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