hep-th

Scheme Dependence of the One-Loop Domain Wall Tension

This paper demonstrates that two recently developed methods for calculating the one-loop domain wall tension in the 3+1 dimensional $\phi^4$ model yield consistent results when the same renormalization scheme is applied.

A Compact Story of Positivity in de Sitter

$c_{\rm eff}$ from Resurgence at the Stokes Line

Holographic Extended Thermodynamics of deformed AdS-Schwarzschild black hole

This paper investigates the thermodynamics and phase structure of a deformed AdS-Schwarzschild black hole generated via gravitational decoupling, demonstrating how the deformation parameter drives diverse phase transitions in both the bulk and its dual conformal field theory across various thermodynamic ensembles.

Open case for a closed universe

The paper establishes a new no-go theorem stating that only closed universes ($k=+1$) can be simultaneously nonsingular, geodesically complete, and consistent with the averaged null energy condition (ANEC), while also demonstrating that positive spatial curvature can mimic the effects of phantom dark energy in cosmological observations.

The Cauchy problem for gradient generalized Ricci solitons on a bundle gerbe

This paper establishes the well-posedness of the analytic Cauchy problem for gradient generalized Ricci solitons on abelian bundle gerbes and solves the associated initial data equations on compact Riemann surfaces, while characterizing self-similar solutions through families of gerbe automorphisms covering diffeomorphisms isotopic to the identity.

Introductory Lectures on Resurgence: CERN Summer School 2024

This paper presents a set of four introductory lectures delivered at the CERN Summer School 2024 on Resurgent Asymptotics for Physics, which utilize physically motivated examples and exercises to explain key concepts ranging from the Stokes phenomenon to resurgence in Quantum Field Theory.

Holographic interpolations of defect CFTs

This paper proposes a new class of holographic dualities between non-supersymmetric defect conformal field theories and a gravity system comprising a novel D5 probe brane terminating on two D7 branes in $AdS_5\times S^5$, which interpolates between the 1/2-BPS D3-D3 system and a previously studied duality while ensuring anomaly cancellation and stability.

From $\mathrm{AdS}_5$ to $\mathrm{AdS}_3$: TsT deformations, Magnetic fields and Holographic RG Flows

This paper investigates how TsT deformations affect chiral symmetry breaking and the meson spectrum of a D7-brane probe in a magnetic background, discovering that a specific deformation parameter value restores consistent perpendicular fluctuations and recovers a constant magnetic field while transitioning the geometry to an $\mathrm{AdS}_3$-like spacetime.

Cosmic Collider Gravitational Waves sourced by Right-handed Neutrino production from Bubbles: Testing Seesaw, Leptogenesis and Dark Matter

This paper explores a minimal type-I seesaw framework where a first-order phase transition produces right-handed neutrinos through bubble collisions, creating a "cosmic collider" that generates unique gravitational-wave signals capable of testing models of leptogenesis, dark matter, and asymmetric co-genesis across various energy scales.