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116 papers · 1 filter
Page curves and Entanglement Islands for the Step-Function Vaidya Model of Evaporating Black Holes
Chang-Zhong Guo, Wen-Cong Gan, Fu-Wen Shu
It was proposed recently that the fine-grained entropy of the Hawking radiation can be expressed by the semiclassical island formula, which reproduces the unitary Page curve. In th…
A Note on Entanglement Entropy for Primary Fermion Fields in JT Gravity
Chang-Zhong Guo, Wen-Cong Gan, Fu-Wen Shu
In this paper we analyse and discuss 2D Jackiw-Teitelboim (JT) gravity coupled to primary fermion fields in asymptotically anti-de Sitter (AdS) spacetimes. We get a particular solu…
Unitary Constraints on Semiclassical Schwarzschild Black Holes in the Presence of Island
Dong-Hui Du, Wen-Cong Gan, Fu-Wen Shu +1
We reconsider dimensional asymptotically flat eternal Schwarzschild black hole, and focus on the situation where the inner boundary of the radiation region is chosen to be…
The geometry of gauged (super)conformal mechanics
Delaram Mirfendereski, Joris Raeymaekers, Canberk Şanlı +1
Motivated by recently explored examples, we undertake a systematic study of conformal invariance in one-dimensional sigma models where an isometry group has been gauged. Perhaps su…
Island and Page curve for one-sided asymptotically flat black hole
Wen-Cong Gan, Dong-Hui Du, Fu-Wen Shu
Great breakthrough in solving black hole information paradox took place when semiclassical island rule for entanglement entropy of Hawking radiation was proposed in recent years. U…
Bit threads and holographic entanglement of purification
Dong-Hui Du, Chong-Bin Chen, Fu-Wen Shu
The entanglement of purification (EoP), which measures the classical correlations and entanglement of a given mixed state, has been conjectured to be dual to the area of the minima…
Towards a Fisher-information description of complexity in de Sitter universe
Chong-Bin Chen, Fu-Wen Shu
Recent developments on holography and quantum information physics suggest that quantum information theory come to play a fundamental role in understanding quantum gravity. Cosmolog…
Inflationary perturbation spectrum in extended effective field theory of inflation
Jin Qiao, Guang-Hua Ding, Qiang Wu +2
The effective field theory (EFT) of inflation provides a natural framework to study the new physical effects on primordial perturbations. Recently a healthy extension of the EFT of…
Prediction for the Cosmological Constant and Constraints on Susy GUTS in Resummed Quantum Gravity
B. F. L. Ward
Working in the context of the Planck scale cosmology formulation of Bonanno and Reuter, we use our resummed quantum gravity approach to Einstein's general theory of relativity to e…
"Shadowy" modes in Higher-Order Scalar-Tensor theories
Antonio De Felice, David Langlois, Shinji Mukohyama +2
We consider Higher-Order Scalar-Tensor theories which appear degenerate when restricted to the unitary gauge but are not degenerate in an arbitrary gauge. We dub them U-degenerate…
Some new results for the one-loop mass correction to the compactified theory
Guglielmo Fucci, Klaus Kirsten
In this work we consider the one-loop effective action of a self-interacting field propagating in a dimensional Euclidean space endowed with compact dimensio…
Functional determinants and Casimir energy in higher dimensional spherically symmetric background potentials
Guglielmo Fucci, Klaus Kirsten
In this paper we analyze the spectral zeta function associated with a Laplace operator acting on scalar functions on an N-dimensional Euclidean space in the presence of a spherical…
Dynamics of Perturbations in Double Field Theory & Non-Relativistic String Theory
Sung Moon Ko, Charles Melby-Thompson, Rene Meyer +1
Double Field Theory provides a geometric framework capable of describing string theory backgrounds that cannot be understood purely in terms of Riemannian geometry -- not only glob…
Casimir energies in spherically symmetric background potentials revisited
Matthew Beauregard, Michael Bordag, Klaus Kirsten
In this paper we reconsider the formulation for the computation of the Casimir energy in spherically symmetric background potentials. Compared to the previous analysis, the technic…
Spectral dimension of bosonic string theory
D. G. Moore, V. H. Satheeshkumar
Given that the scale of quantum gravity is not experimentally accessible, one naturally resorts to mathematical consistency as a measure for a good candidate theory to replace Gene…
Quantization of (1+1)-dimensional Hořava-Lifshitz theory of gravity
Bao-Fei Li, Anzhong Wang, Yumei Wu +1
In this paper, we study the quantization of the (1+1)-dimensional projectable Hořava-Lifshitz (HL) gravity, and find that, when only gravity is present, the system can be quantized…
Effects of high-order operators in non-relativistic Lifshitz holography
Xinwen Wang, Jie Yang, Miao Tian +3
In this paper, we study the effects of high-order operators on the non-relativistic Lifshitz holography in the framework of the Hořava-Lifshitz (HL) theory of gravity, which natura…
Holographic Superconductors in Horava-Lifshitz Gravity
Kai Lin, Elcio Abdalla, Anzhong Wang
We consider holographic superconductors related to the Schwarzschild black hole in the low energy limit of Hořava-Lifshitz spacetime. The non-relativistic electromagnetic and scala…
Lifshitz spacetimes, solitons, and generalized BTZ black holes in quantum gravity at a Lifshitz point
Fu-Wen Shu, Kai Lin, Anzhong Wang +1
In this paper, we study static vacuum solutions of quantum gravity at a fixed Lifshitz point in (2+1) dimensions, and present all the diagonal solutions in closed forms in the infr…
High-dimensional Lifshitz-type spacetimes, universal horizons and black holes in Hořava-Lifshitz gravity
Kai Lin, Fu-Wen Shu, Anzhong Wang +1
In this paper, we present all -dimensional static diagonal vacuum solutions of the non-projectable Hořava-Lifshitz gravity in the IR limit, and show that they give rise…
Investigations of the torque anomaly in an annular sector. II. Global calculations, electromagnetic case
Kimball A. Milton, Prachi Parashar, E. K. Abalo +2
Recently, it was suggested that there was some sort of breakdown of quantum field theory in the presence of boundaries, manifesting itself as a torque anomaly. In particular, Fulli…
Investigations of the torque anomaly in an annular sector. I. Global calculations, scalar case
Kimball A. Milton, Fardin Kheirandish, Prachi Parashar +5
In an attempt to understand a recently discovered torque anomaly in quantum field theory with boundaries, we calculate the Casimir energy and torque of a scalar field subject to Di…
Effects of parity violation on non-gaussianity of primordial gravitational waves in Hořava-Lifshitz gravity
Tao Zhu, Wen Zhao, Yongqing Huang +2
In this paper, we study the effects of parity violation on non-gaussianities of primordial gravitational waves in the framework of Hořava-Lifshitz theory of gravity, in which high-…
Primordial Non-Gaussianity of Gravitational Waves in Hořava-Lifshitz Gravity
Yongqing Huang, Anzhong Wang, Razieh Yousefi +1
In this paper, we study 3-point correlation function of primordial gravitational waves generated in the de Sitter background in the framework of the general covariant Hořava-Lifshi…