Research

Black Hole Shadows and Strong Field Lensing

I study the propagation of light in curved spacetimes, including Kerr and more general rotating geometries, with emphasis on the geometric and dynamical structures that govern black hole shadows. This involves the analysis of null geodesic motion, photon orbits including light rings, and extended photon regions, together with the associated strong field lensing features. I investigate how the existence, stability, and structure of these configurations, often constrained by general results in gravitational theory, shape shadow morphology and stability, and how they arise from the underlying spacetime geometry through effective potentials and critical trajectories. This framework allows me to study both Kerr and non Kerr spacetimes, including horizonless ultra compact objects, and to identify distinguishing features, including time dependent aspects such as delays and variability, using analytical and ray tracing methods, with relevance for observations such as those by the Event Horizon Telescope and for tests of gravity.

 

Gravitational Waves and Black Hole Dynamics

I study perturbations of black hole spacetimes, focusing on the spectral and dynamical properties of the associated wave operators. This includes the analysis of quasi normal mode spectra and ringdown signals that encode the geometry of the background spacetime, and how these depend on rotation, including in more general rotating geometries and non separable spacetimes, as well as in theories beyond general relativity and in the presence of environmental effects. I investigate stability, spectral structure, and pseudospectrum, together with the role of overtones and late time behaviour, and use analytical and numerical methods to study both the spectral problem and time dependent evolution of perturbations, with implications for observations by the LIGO Scientific Collaboration and the Virgo Collaboration and for testing gravity.

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Black Holes Beyond General Relativity

I study black hole solutions in theories beyond general relativity, including higher curvature and modified gravity models, with emphasis on their geometric and dynamical properties. This includes analysing extensions of classical black hole theorems, the structure of non Kerr spacetimes, and the behaviour of perturbations and quasi normal modes in these settings. I investigate how deviations from general relativity manifest in observable features and develop frameworks to identify robust signatures that distinguish modified gravity scenarios, with implications for both electromagnetic and gravitational wave tests of gravity.

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Quantum Field Theory in Curved Spacetime and Quantum Radiation

I study quantum fields in curved backgrounds, focusing on how spacetime geometry and acceleration influence field dynamics, particle content, and radiation phenomena. This includes the analysis of quantum states, detector responses, and excitation spectra in non inertial and horizon spacetimes, with particular emphasis on the Davies Unruh effect and Hawking radiation. I investigate how quantum fluctuations and correlations depend on curvature, boundary conditions, and confinement, including deviations from thermal behaviour such as anisotropies in the excitation spectrum and their physical origin. I also explore physically motivated realisations of these effects, including analogue gravity systems and experimental proposals, using analytical methods and model systems to understand how these phenomena manifest beyond idealised settings and how they may be probed.

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Black Hole Physics, Symmetry, and Information

I study the interplay between gravity, symmetry, and information in black hole spacetimes. My work focuses on asymptotic symmetries, including BMS supertranslations and superrotations, and their relation to gravitational memory and soft hair. I analyse how these structures arise in gravitational dynamics, including through shock wave geometries, and how they encode and constrain information in the spacetime. These investigations are closely connected to the black hole information paradox and the question of how information is stored and recovered in gravitational systems.

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Relativistic Quantum Information and Curved Spacetime Effects

I study quantum information in relativistic settings, focusing on how spacetime geometry and motion influence quantum correlations and observables, including entanglement in curved spacetimes and non inertial frames. I investigate how curvature, acceleration, and horizons modify quantum states and information measures, including their observer dependence in quantum field theoretic settings, with the aim of developing a consistent framework for quantum information in curved spacetime.

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Emergent Gravity and Quantum Gravity

I study aspects of the emergent gravity paradigm, focusing on the thermodynamic and holographic properties of spacetime, including the thermodynamics of horizons and the relation between gravitational dynamics and fluid behaviour. I investigate how these ideas provide insight into the microscopic origin of spacetime and their connection to quantum gravity, with emphasis on conceptual clarity and theoretical structure.

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More details to be updated soon