activity
20102026
most citedA Mode-Sum Prescription for Vacuum Polarization in Odd Dimensions

28 citations · 133 across the 14 of their papers we have counts for

collaborators

14 papers

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…

gr-qc2026

Vacuum polarization and renormalized stress-energy tensor of spherical thin shells

Julio Arrechea, Cormac Breen, Adrian Ottewill +2

We provide a thorough study of the properties of the Boulware vacuum in the spacetime of a spherical, static thin shell with a Minkowski interior. To this end, we calculate the ren…

hep-th2024

Mode-sum prescription for renormalized expectation values for a charged quantum scalar field on a charged black hole

Cormac Breen, George Montagnon, Peter Taylor +1

We present a new mode-sum prescription for the efficient computation of renormalized expectation values for a massive, charged, quantum scalar field propagating on a curved space-t…

gr-qc2024★ 6 cited

The renormalized stress-energy tensor for scalar fields in the Boulware state with applications to extremal black holes

Julio Arrechea, Cormac Breen, Adrian Ottewill +2

We provide a mode-sum prescription to directly compute the renormalized stress-energy tensor (RSET) for scalar fields in the Boulware vacuum. The method generalizes the recently de…

gr-qc2023

Renormalized stress-energy tensor for scalar fields in Hartle-Hawking, Boulware and Unruh states in the Reissner-Nordström spacetime

Julio Arrechea, Cormac Breen, Adrian Ottewill +1

In this paper, we consider a quantum scalar field propagating on the Reissner-Nordström black hole spacetime. We compute the renormalized stress-energy tensor for the field in the…

gr-qc2022

A mode-sum prescription for the renormalized stress energy tensor on black hole spacetimes

Peter Taylor, Cormac Breen, Adrian Ottewill

In this paper, we describe an extremely efficient method for computing the renormalized stress-energy tensor of a quantum scalar field in spherically-symmetric black hole spacetime…

gr-qc2020★ 6 cited

Semi-Classical Backreaction on Asymptotically Anti-de Sitter Black Holes

Peter Taylor, Cormac Breen

We consider a quantum scalar field on the classical background of an asymptotically anti-de Sitter black hole and the backreaction the field's stress-energy tensor induces on the b…

gr-qc2018★ 5 cited

Vacuum polarization for varying quantum scalar field parameters in Schwarzschild-anti-de Sitter spacetime

Cormac Breen, Peter Taylor

Equipped with new powerful and efficient methods for computing quantum expectation values in static-spherically symmetric spacetimes in arbitrary dimensions, we perform an in-depth…

gr-qc2017★ 26 cited

A Mode-Sum Prescription for Vacuum Polarization in Even Dimensions

Peter Taylor, Cormac Breen

We present a mode-sum regularization prescription for computing the vacuum polarization of a scalar field in static spherically-symmetric black hole spacetimes in even dimensions.…

gr-qc2016★ 28 cited

A Mode-Sum Prescription for Vacuum Polarization in Odd Dimensions

Peter Taylor, Cormac Breen

We present a new mode-sum regularization prescription for computing the vacuum polarization of a scalar field in static spherically-symmetric black hole spacetimes in odd dimension…

gr-qc2015★ 9 cited

Vacuum polarization on the brane

Cormac Breen, Matthew Hewitt, Adrian C. Ottewill +1

We compute the renormalized expectation value of the square of a massless, conformally coupled, quantum scalar field on the brane of a higher-dimensional black hole. Working in the…

gr-qc2011★ 21 cited

Hadamard Renormalization of the Stress Energy Tensor in a Spherically Symmetric Black Hole Space-Time with an Application to Lukewarm Black Holes

Cormac Breen, Adrian C. Ottewill

We consider a quantum field which is in a Hartle-Hawking state propagating in a spherically symmetric black hole space-time. We calculate the components of the stress tensor, renor…

gr-qc2011★ 14 cited

Hadamard Renormalisation of the Stress Energy Tensor on the Horizons of a Spherically Symmetric Black Hole Space-Time

Cormac Breen, Adrian C. Ottewill

We consider a quantum field which is in a Hartle-Hawking state propagating in a general spherically symmetric black hole space-time. We make use of uniform approximations to the ra…

gr-qc2010★ 18 cited

Extended Green-Liouville asymptotics and vacuum polarization for lukewarm black holes

Cormac Breen, Adrian C. Ottewill

We consider a quantum field on a lukewarm black hole spacetime. We introduce a new uniform approximation to the radial equation, constructed using an extension of Green-Liouville a…