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Thermal Schwinger pair production at arbitrary coupling

- Oliver Gould, A. Rajantie
- Physics
- 16 April 2017

We calculate the rate of thermal Schwinger pair production at arbitrary coupling in weak external fields. Our calculations are valid independently of many properties of the charged particles… Expand

Theoretical uncertainties for cosmological first-order phase transitions

- D. Croon, Oliver Gould, P. Schicho, T. Tenkanen, G. White
- Physics
- 21 September 2020

We critically examine the magnitude of theoretical uncertainties in perturbative calculations of first-order phase transitions, using the Standard Model effective field theory as our guide. In the… Expand

Magnetic Monopole Mass Bounds from Heavy-Ion Collisions and Neutron Stars.

- Oliver Gould, A. Rajantie
- Physics, Medicine
- Physical review letters
- 19 May 2017

Magnetic monopoles, if they exist, would be produced amply in strong magnetic fields and high temperatures via the thermal Schwinger process. Such circumstances arise in heavy-ion collisions and in… Expand

Observing Thermal Schwinger Pair Production

- Oliver Gould, S. Mangles, A. Rajantie, S. Rose, Cheng-jun Xie
- Physics
- 10 December 2018

We study the possibility of observing Schwinger pair production enhanced by a thermal bath of photons. We consider the full range of temperatures and electric field intensities, and identify the most… Expand

Towards Schwinger production of magnetic monopoles in heavy-ion collisions

- Oliver Gould, D. Ho, A. Rajantie
- Physics
- 12 February 2019

Magnetic monopoles may be produced by the Schwinger effect in the strong magnetic fields of peripheral heavy-ion collisions. We review the form of the electromagnetic fields in such collisions and… Expand

Nonperturbative analysis of the gravitational waves from a first-order electroweak phase transition

- Oliver Gould, J. Kozaczuk, L. Niemi, M. Ramsey-Musolf, T. Tenkanen, D. Weir
- Physics
- 27 March 2019

We present the first end-to-end nonperturbative analysis of the gravitational wave power spectrum from a thermal first-order electroweak phase transition (EWPT), using the framework of dimensionally… Expand

Worldline sphaleron for thermal Schwinger pair production

- Oliver Gould, A. Rajantie, Cheng-jun Xie
- Physics
- 7 June 2018

With increasing temperatures, Schwinger pair production changes from a quantum tunneling to a classical, thermal process, determined by a worldline sphaleron. We show this and calculate the… Expand

Schwinger pair production of magnetic monopoles: momentum distribution for heavy-ion collisions

- Oliver Gould, D. Ho, A. Rajantie
- Physics
- 26 March 2021

Magnetic monopoles may be produced by the dual Schwinger effect in strong magnetic fields. Today, the strongest known magnetic fields in the universe are produced fleetingly in heavy-ion collisions.… Expand

On the perturbative expansion at high temperature and implications for cosmological phase transitions

- Oliver Gould, T. Tenkanen
- Physics
- 9 April 2021

We revisit the perturbative expansion at high temperature and investigate its convergence by inspecting the renormalisation scale dependence of the effective potential. Although at zero temperature… Expand

Real scalar phase transitions: a nonperturbative analysis

- Oliver Gould
- Physics
- 14 January 2021

We study the thermal phase transitions of a generic real scalar field, without a Z2-symmetry, referred to variously as an inert, sterile or singlet scalar, or ϕ3 + ϕ4 theory. Such a scalar field… Expand

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