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Scalar Love numbers and Love symmetries of 5-dimensional Myers-Perry black holes
The near-zone “Love” symmetry resolves the naturalness issue of black hole Love number vanishing with SL (2, ℝ) representation theory. Here, we...
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Anomaly of subsystem symmetries in exotic and foliated BF theories
We study the mixed ’t Hooft anomaly of the subsystem symmetries in the exotic BF theory and the foliated BF theory in 2+1 dimensions, both of which...
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The generalized Vaidya spacetime with polytropic equation of state
The process of the gravitational collapse might lead not only to a black hole but also to naked singularity formation. In this paper, we consider the...
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JT gravity from holographic reduction of 3D asymptotically flat spacetime
We attempt to understand the CFT 1 structure underlying (2+1)D gravity in flat spacetime via dimensional reduction. We observe that under...
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Quadratic gravity potentials in de Sitter spacetime from Feynman diagrams
We employ a manifestly covariant formalism to compute the tree-level amputated Green’s function of non-minimally coupled scalar fields in quadratic...
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Shift symmetries for p-forms and mixed symmetry fields on (A)dS
Massive fields on (anti) de Sitter space realize extended shift symmetries at particular values of their masses. We find these symmetries for all...
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Generalized symmetries and Noether’s theorem in QFT
We show that generalized symmetries cannot be charged under a continuous global symmetry having a Noether current. Further, only non-compact...
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Quantum Symmetries
We start by studying the Lie algebra $$\text {her}_\eta ({\boldsymbol{Q}},...
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Gauging non-invertible symmetries: topological interfaces and generalized orbifold groupoid in 2d QFT
Gauging is a powerful operation on symmetries in quantum field theory (QFT), as it connects distinct theories and also reveals hidden structures in a...
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Tearing down spacetime with quantum disentanglement
A longstanding enigma within AdS/CFT concerns the entanglement entropy of holographic quantum fields in Rindler space. The vacuum of a quantum field...
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Love numbers and Love symmetries for p-form and gravitational perturbations of higher-dimensional spherically symmetric black holes
The static Love numbers of four-dimensional asymptotically flat, isolated, general-relativistic black holes are known to be identically vanishing....
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Gravity as a gapless phase and biform symmetries
We study effective field theories (EFTs) enjoying (maximal) biform symmetries. These are defined by the presence of a conserved (electric) current...
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Detector operators for celestial symmetries
This paper presents a systematic cataloging of the generators of celestial symmetries on phase space. Starting from the celestial OPEs, we first show...
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A regular metric does not ensure the regularity of spacetime
In this paper we try to clarify that a regular metric can generate a singular spacetime. Our work focuses on a static and spherically symmetric...
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Non-relativistic gravity theories in four spacetime dimensions
In this work we present a non-relativistic gravity theory defined in four spacetime dimensions using the MacDowell-Mansouri geometrical formulation....
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Higher Energies, Myriad of Particles: Their Classifications and Their Symmetries
With the emergence of a myriad of high energy particles which travel with speeds comparable to that of the speed of light, and for a proper...
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Fuzzy worldlines with κ-Poincaré symmetries
A novel approach to study the properties of models with quantum-deformed relativistic symmetries relies on a noncommutative space of worldlines...
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Generalized chiral instabilities, linking numbers, and non-invertible symmetries
We demonstrate a universal mechanism of a class of instabilities in infrared regions for massless Abelian p -form gauge theories with topological...
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Building Spacetime from Effective Interactions Between Quantum Fluctuations
We describe how a model of effective interactions between quantum fluctuations under certain assumptions can be constructed in a way so that the...
