Ian G. Moss

Newcastle University

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Ruth Gregory

King's College London

T. P. Billam

Newcastle University

VŠ

Vladimír Šik

University of Exeter

E. W. Abel

University of Southern Denmark

Keith G. Orrell

University of Exeter

Arjun Berera

University of Edinburgh

David S. Stephenson

University of the West Indies

Kate Brown

CooperSurgical (United States)

Wade Naylor

Australian Catholic University

Rudnei O. Ramos

Universidade do Estado do Rio de Janeiro

Cooperative Institutions

Newcastle University

University of Cambridge

Durham University

University of Trento

University of Sussex

University of Exeter

Istituto Nazionale di Fisica Nucleare, Trento Institute for Fundamental Physics And Applications

California Institute of Technology

University College London

Imperial College London

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Gravitational instantons and quantisation of the cosmological constant

Physics Letters B (1992)

Ian G. Moss

Cosmological constant

Instanton

Gravitational constant

10.1016/0370-2693(92)91425-9

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Citations (2)

The dynamics of dimensional reduction

Physics Letters B (1984)

Ian G. Moss

Dynamics

Dimensional reduction

10.1016/0370-2693(84)91040-2

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Citations (15)

ChemInform Abstract: Stereochemical Rigidity of the Square‐Pyramidal W(CO)5 Moiety During 1,2‐ and 1,3‐Metallotropic Shifts in Sulfur Ligand Complexes.

ChemInform (1988)

E. W. Abel Ian G. Moss Keith G. Orrell Khurshid B. Qureshi Vladimír Šik

Abstract NMR studies of the complexes (I) show no evidence of carbonyl scrambling.

Moiety

Rigidity (electromagnetism)

Square (algebra)

10.1002/chin.198840048

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Hawking-Moss transition with a black hole seed

Journal of High Energy Physics (2020)

Ruth Gregory Ian G. Moss Naritaka Oshita Sam Patrick

We extend the the concept of Hawking-Moss, or up-tunnelling, transitions in the early universe to include black hole seeds. The black hole greatly enhances the decay amplitude, however, order to have physically consistent results, we need to impose a new condition (automatically satisfied for the original Hawking-Moss instanton) that the cosmological horizon area should not increase during tunnelling. We motivate this conjecture physically in two ways. First, we look at the energetics of the process, using the formalism of extended black hole thermodynamics; secondly, we extend the stochastic inflationary formalism to include primordial black holes. Both of these methods give a physical substantiation of our conjecture.

Hawking

10.1007/jhep09(2020)135

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Citations (13)

Primordial inflation with spontaneous symmetry breaking

Physics Letters B (1985)

Ian G. Moss

Eternal inflation

10.1016/0370-2693(85)90570-2

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Citations (130)

Topological symmetry breaking by quantum wormholes

Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields (1993)

S. Mignemi Ian G. Moss

In multiply connected spacetimes which contain quantum wormholes it may be possible to break gauge symmetries without the usual Higgs fields. In a simple model, symmetry breaking is favored by the quantum effects of Dirac Fermions and leads to vector boson masses related to the wormhole separation.

Wormhole

10.1103/physrevd.48.3725

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Citations (9)

Monopoles in the inflationary universe

Physics Letters B (1983)

Ian G. Moss

False vacuum

Metastability

Coupling constant

10.1016/0370-2693(83)90921-8

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Citations (15)

Quantum mechanics on moduli spaces

Nuclear Physics B (2000)

Ian G. Moss Noriko Shiiki

Sigma

Dimensional reduction

10.1016/s0550-3213(99)00650-1

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Citations (12)

Quantum cosmology with antisymmetric tensor fields

Physics Letters B (1990)

Ian G. Moss Stephen Poletti

Antisymmetric tensor

Loop Quantum Cosmology

Antisymmetric relation

Cosmological constant

10.1016/0370-2693(90)90658-s

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Citations (23)

Bubble nucleation in a cold spin 1 gas

arXiv (Cornell University) (2022)

T. P. Billam Kate Brown Ian G. Moss

Cold atomic gases offer the prospect of simulating the physics of the very early universe in the laboratory. In the condensate phase, the gas is described by a field theory with key features of high energy particle theory. This paper describes a three level system which undergoes a first order phase transition through the nucleation of bubbles. The theoretical investigation shows bubbles nucleating in two dimensions at non-zero temperature. There is good agreement between the bubble nucleation rates calculated from a Stochastic Projected Gross-Pitaevskii equation and from a non-perturbative instanton method. When an optical box trap is included in the simulations, the bubbles nucleate preferentially near the walls of the trap.

Instanton

Classical nucleation theory

Particle (ecology)

10.48550/arxiv.2212.03621

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