Here is a list of my research articles. You can also find lists at Inspire and ORCID. The numerical data for some of these articles may be found on Zenodo.
| Light dilaton near critical points in top-down holography | Feb. 2025 |
|---|---|
| Daniel Elander, Antón F. Faedo, Maurizio Piai, Ronnie Rodgers, Javier G. Subils | |
| This is a follow up to Light holographic dilatons near critical points, in which we demonstrate the mechanism described in that paper in a model arising from string theory/supergravity. | |
| Conductivities and excitations of a holographic flavour brane Weyl semimetal | Dec. 2024 |
| Haruki Furukawa, Sacha Ployet, Ronnie Rodgers | |
| In this paper we compute the electrical conductivities of the holographic Weyl semimetal introduced in A Weyl semimetal from AdS/CFT with flavour. | |
| Entanglement Rényi entropies in celestial holography | Dec. 2024 |
| Federico Capone, Andy O'Bannon, Ronnie Rodgers, Somyadip Thakur, | |
| We develop a method to compute entanglement entropy and Rényi entropies in the quantum field theory dual to Minkowski space in Celestial Holography. | |
| Light holographic dilatons near critical points | Jun. 2024 |
| Carlos Hoyos, Antón F. Faedo, Maurizio Piai, Ronnie Rodgers, Javier G. Subils | |
| We use holography to demonstrate a mechanism for generating light dilaton states, by approaching a critical point in parameter space at the end of a line of first-order phase transitions. | |
| Nodal-antinodal dichotomy from anisotropic quantum critical continua in holographic models | Dec. 2022 |
| Ronnie Rodgers, Jewel Kumar Ghosh, Alexander Krikun | |
| We use holography to propose a mechanism for generating the "nodal-antinodal dichotomy" that appears in cuprate high-temperature superconductors, based on scaling symmetry. | |
| Boost-invariant superfluid flows | Jul. 2022 |
| Ronnie Rodgers, Javier G. Subils | |
| We give exact solutions of relativistic hydrodynamics describing an ideal superfluid, that are invariant under Lorentz boosts in one direction (superfluid Bjorken/Gubser flows). We also give numerical solutions for non-zero shear viscosity. | |
| Thermodynamics and transport of holographic nodal line semimetals | Sep. 2021 |
| Ronnie Rodgers, Enea Mauri, Umut Gürsoy, Henk T. C. Stoof | |
| We compute thermodynamic observables, fermion spectral functions, and electrical and thermal conductivities in a holographic model of a nodal line semimetal. | |
| A Weyl semimetal from AdS/CFT with flavour | Dec. 2020 |
| Kazem Bitaghsir Fadafan, Andy O'Bannon, Ronnie Rodgers, Matthew Russell | |
| We introduce a top-down holographic model of a Weyl semimetal, based on the intersection of D3- and D7-branes. | |
| Holographic entanglement entropy of the Coulomb branch | Dec. 2020 |
| Adam Chalabi, S. Prem Kumar, Andy O'Bannon, Anton Pribytok, Ronnie Rodgers, Jacopo Sisti | |
| We use holography compute the entanglement entropy of a spherical subregion in N=4 super-Yang-Mills theory on its Coulomb branch, and in the presence of screened Wilson lines or spherically-symmetric solitons. | |
| Holographic Coulomb branch solitons, quasinormal modes, and black holes | Nov. 2020 |
| S. Prem Kumar, Andy O'Bannon, Anton Pribytok, Ronnie Rodgers | |
| We compute the spectrum of excitations of certain spherically symmetric solitons in N=4 super-Yang-Mills theory. These excitations are qualitatively similar to the quasinormal modes of a black hole. | |
| Holographic Wilson lines as screened impurities | Dec. 2019 |
| Nick Evans, Andy O'Bannon, Ronnie Rodgers | |
| We compute the spectrum of excitations of a screened Wilson line in N=4 super-Yang-Mills theory, demonstrating the presence of quasi-bound states. | |
| From the Weyl Anomaly to Entropy of Two-Dimensional Boundaries and Defects | Dec. 2018 |
| Kristan Jensen, Andy O'Bannon, Brandon Robinson, Ronnie Rodgers | |
| We elucidate the relation between the Weyl anomaly and thermal/entanglement entropies in quantum field theories with 2D defects. One of the main results is a formula relating defect contribution to the entanglement entropy of a spherical region to defect Weyl anomaly coefficients. We use this formula, along with entanglement entropy results from holography, to obtain these Weyl anomaly coefficients for two classes of defects in maximally supersymmetric gauge theories. | |
| Wilson Surface Central Charge from Holographic Entanglement Entropy | Dec. 2018 |
| John Estes, Darya Krym, Andy O'Bannon, Brandon Robinson, Ronnie Rodgers | |
| We compute the contribution to entanglement entropy of a spherical region for defects arising from the intersection between M2- and M5-branes. | |
| Holographic entanglement entropy from probe M-theory branes | Nov. 2018 |
| Ronnie Rodgers | |
| We compute the contribution to entanglement entropy from Wilson surface defects in six-dimensional N=(2,0) theory. We also study the behaviour of entanglement entropy under defect renormalisation-group flows, investigating the viability of entanglement entropy as a c-function. | |
| Holographic Zero Sound from Spacetime-Filling Branes | Jul. 2018 |
| Nikola I. Gushterov, Andy O'Bannon, Ronnie Rodgers | |
| We show that the quantum field theory holographically dual to spacetime-filling brane exhibits excitations that behave like zero sound modes of Fermi liquids. | |
| On Holographic Entanglement Density | Aug. 2018 |
| Nikola I. Gushterov, Andy O'Bannon, Ronnie Rodgers | |
| We compute entanglement entropy in a number of holographic models of compressible quantum matter. | |
| First law of entanglement rates from holography | Dec. 2016 |
| Andy O'Bannon, Jonas Probst, Ronnie Rodgers, Christoph F. Uhlemann | |
| We show that the rate of change of entanglement entropy is proportional to the rate of change of energy density in holographic systems deformed by a linear-in-time source. We demonstrate this law with several examples. | |