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hep-th2026

Quantum effects of charged massive scalar fields on charged black hole space-times

Cormac Breen, George Montagnon, Peter Taylor +1

We compute the renormalized expectation values of the scalar condensate, charge current and stress-energy tensor for a massive charged quantum scalar field on a Reissner-Nordstrom…

hep-th2025

Quantum effects in rotating thermal states on anti-de Sitter space-time

Jacob C. Thompson, Elizabeth Winstanley

We study the stress-energy tensor of a massless, conformally coupled, quantum scalar field in a rigidly-rotating thermal state on three- and four-dimensional anti-de Sitter space-t…

hep-th2025

Renormalized charged scalar current on a Reissner-Nordstrom black hole in the presence of charge superradiance

George Montagnon, Elizabeth Winstanley

We compute the renormalized charge current for a massless, minimally coupled, charged quantum scalar field on a charged Reissner-Nordstrom black hole space-time, using the method o…

hep-th2025

Nonminimal coupling, quantum scalar field stress-energy tensor and energy conditions on global anti-de Sitter space-time

Sivakumar Namasivayam, Elizabeth Winstanley

We compute the renormalized expectation value of the stress-energy tensor operator for a quantum scalar field propagating on three-dimensional global anti-de Sitter space-time. The…

hep-th2024

Quantum scalar field theory on equal-angular-momenta Myers-Perry-AdS black holes

Alessandro Monteverdi, Elizabeth Winstanley

We study the canonical quantization of a massive scalar field on a five dimensional, rotating black hole space-time. We focus on the case where the space-time is asymptotically ant…

hep-th2024

Quantum fermion superradiance and vacuum ambiguities on charged black holes

Álvaro Álvarez-Domínguez, Elizabeth Winstanley

Unlike a classical charged bosonic field, a classical charged fermion field on a static charged black hole does not exhibit superradiant scattering. We demonstrate that the quantum…