79 citations · 493 across the 27 of their papers we have counts for
28 papers
On the Renormalization Group Flow of Active Flocks
Kevin T. Grosvenor, Subodh P. Patil
We study the statistical field-theoretic renormalization of active flocks via the Martin-Siggia-Rose-De Dominicis-Janssen (MSRDJ) formulation of stochastic dynamics, focusing on th…
Exact Solution of the Non-minimally Coupled Klein-Gordon Equation in the Schwarzschild Star
Reynan A. Dulinayan, Kevin T. Grosvenor
We present for the first time the exact solution of the massive Klein-Gordon equation in the Schwarzschild star (perfect-fluid, uniform-density, spherically-symmetric star), includ…
Plasticity from Symmetry: A Gauge-Theoretic Framework
Kevin T. Grosvenor, Mario Solís, Piotr Surówka
Plastic deformation is widely regarded as an intrinsically dissipative phenomenon and its theoretical description is largely phenomenological. We argue instead that plasticity poss…
Exact Regions of Superradiant Instability of Kerr-Newman Black Holes and Massive Scalar Fields
John Adrian B. Baybay, Kevin T. Grosvenor
We investigate the superradiant instability of Kerr-Newman black holes in the presence of a massive, charged scalar field using the Vieira-Bezerra-Kokkotas (VBK) method. We study t…
Heterotic String Sigma Models: Discrete Light Cone Quantization and Its Current-Current Deformation
Eric A. Bergshoeff, Kevin T. Grosvenor, Luca Romano +1
We propose a two-dimensional superstring sigma model that defines a self-contained corner of heterotic string theory, whose second quantization is heterotic matrix string theory. T…
Hydrodynamics without Boost-Invariance from Kinetic Theory: From Perfect Fluids to Active Flocks
Kevin T. Grosvenor, Niels A. Obers, Subodh P. Patil
We derive the hydrodynamic equations of perfect fluids without boost invariance [1] from kinetic theory. Our approach is to follow the standard derivation of the Vlasov hierarchy b…
Non-Lorentzian IIB Supergravity from a Polynomial Realization of SL(2,R)
Eric Bergshoeff, Kevin T. Grosvenor, Johannes Lahnsteiner +2
We derive the action and symmetries of the bosonic sector of non-Lorentzian IIB supergravity by taking the non-relativistic string limit. We find that the bosonic field content is…
Criticality versus uniformity in deep neural networks
Aleksandar Bukva, Jurriaan de Gier, Kevin T. Grosvenor +3
Deep feedforward networks initialized along the edge of chaos exhibit exponentially superior training ability as quantified by maximum trainable depth. In this work, we explore the…
T-linear resistivity, optical conductivity and Planckian transport for a holographic local quantum critical metal in a periodic potential
Floris Balm, Nicolas Chagnet, Sam Arend +9
High cuprate strange metals are noted for a DC-resistivity that scales linearly with from the onset of superconductivity to the crystal melting temperature, indicative of…
Branched SL(2,Z) Duality
Eric Bergshoeff, Kevin T. Grosvenor, Johannes Lahnsteiner +2
We investigate how SL(2,Z) duality is realized in nonrelativistic type IIB superstring theory, which is a self-contained corner of relativistic string theory. Within this corner, w…
Fractonic Berezinskii-Kosterlitz-Thouless transition from a renormalization group perspective
Kevin T. Grosvenor, Ruben Lier, Piotr Surówka
Proliferation of defects is a mechanism that allows for topological phase transitions. Such a phase transition is found in two dimensions for the XY-model, which lies in the Berezi…
Space-dependent symmetries and fractons
Kevin T. Grosvenor, Carlos Hoyos, Francisco Peña-Benitez +1
There has been a surge of interest in effective non-Lorentzian theories of excitations with restricted mobility, known as fractons. Examples include defects in elastic materials, v…
The edge of chaos: quantum field theory and deep neural networks
Kevin T. Grosvenor, Ro Jefferson
We explicitly construct the quantum field theory corresponding to a general class of deep neural networks encompassing both recurrent and feedforward architectures. We first consid…
Towards quantifying information flows: relative entropy in deep neural networks and the renormalization group
Johanna Erdmenger, Kevin T. Grosvenor, Ro Jefferson
We investigate the analogy between the renormalization group (RG) and deep neural networks, wherein subsequent layers of neurons are analogous to successive steps along the RG. In…
Hydrodynamics of ideal fracton fluids
Kevin T. Grosvenor, Carlos Hoyos, Francisco Peña-Benítez +1
Low-energy dynamics of many-body fracton excitations necessary to describe topological defects should be governed by a novel type of hydrodynamic theory. We use a Poisson bracket a…
New Heat Kernel Method in Lifshitz Theories
Kevin T. Grosvenor, Charles Melby-Thompson, Ziqi Yan
We develop a new heat kernel method that is suited for a systematic study of the renormalization group flow in Horava gravity (and in Lifshitz field theories in general). This meth…
Renormalization of Galilean Electrodynamics
Shira Chapman, Lorenzo Di Pietro, Kevin T. Grosvenor +1
We study the quantum properties of a Galilean-invariant abelian gauge theory coupled to a Schrödinger scalar in 2+1 dimensions. At the classical level, the theory with minimal coup…
Information geometry in quantum field theory: lessons from simple examples
Johanna Erdmenger, Kevin T. Grosvenor, Ro Jefferson
Motivated by the increasing connections between information theory and high-energy physics, particularly in the context of the AdS/CFT correspondence, we explore the information ge…
Entanglement Entropy and Subregion Complexity in Thermal Perturbations around Pure-AdS Spacetime
Aranya Bhattacharya, Kevin T. Grosvenor, Shibaji Roy
We compute the holographic entanglement entropy and subregion complexity of spherical boundary subregions in the uncharged and charged AdS black hole backgrounds, with the \textbf{…
An Action for Extended String Newton-Cartan Gravity
Eric Bergshoeff, Kevin Grosvenor, Ceyda Simsek +1
We construct an action for four-dimensional extended string Newton-Cartan gravity which is an extension of the string Newton-Cartan gravity that underlies nonrelativistic string th…
Homogeneous Nonrelativistic Geometries as Coset Spaces
Kevin T. Grosvenor, Jelle Hartong, Cynthia Keeler +1
We generalize the coset procedure of homogeneous spacetimes in (pseudo-)Riemannian geometry to non-Lorentzian geometries. These are manifolds endowed with nowhere vanishing inverti…
Four-dimensional CDT with toroidal topology
Jan Ambjørn, Jakub Gizbert-Studnicki, Andrzej Görlich +2
3+1 dimensional Causal Dynamical Triangulations (CDT) describe a quantum theory of fluctuating geometries without the introduction of a background geometry. If the topology of spac…
Nonrelativistic Yang-Mills Theory for a Naturally Light Higgs Boson
Laure Berthier, Kevin T. Grosvenor, Ziqi Yan
We continue the study of the nonrelativistic short-distance completions of a naturally light Higgs, focusing on the interplay between the gauge symmetries and the polynomial shift…
Quantization of Horava Gravity in 2+1 Dimensions
Tom Griffin, Kevin T. Grosvenor, Charles M. Melby-Thompson +1
We study quantum corrections to projectable Horava gravity with scaling in 2+1 dimensions. Using the background field method, we utilize a non-singular gauge to compute the…