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We present analytic expressions for the cosmic string unequal time correlator (UETC) in the context of the Unconnected Segment Model. This eliminates the need to simulate the many thousands of… (More)

- Dimitri P. Skliros, Edmund J. Copeland, Paul M. Saffin
- Physical review letters
- 2013

We study the decay of fundamental string loops of arbitrary size L/min(n,m)≫sqrt[α'], labeled by (n, m; λn, λ[over ¯]m), where n, m correspond to left- and right-mover harmonics and λn, λ[over ¯]m to… (More)

Superstring theory posits that as complicated as nature may seem to the naive observer,
the variety of observed phenomena may be explained by postulating that at the fundamental
scale, matter is… (More)

The DISCRETE 2014: Fourth Symposium in the Physics of Discrete Symmetries took place at King's College London, Strand Campus, London WC2R 2LS, from Tuesday, December 2 2014 till Saturday, December 6… (More)

We introduce a new prescription for quantising scalar field theories pertur- batively around a true minimum of the full quantum effective action, which is to 'complete normal order' the bare action… (More)

We calculate the equation of state of a gas of strings at high density in a large toroidal universe, and use it to determine the cosmological evolution of background metric and dilaton fields in the… (More)

Fundamental cosmic superstrings are defined in string perturbation theory in terms of vertex operators, which are loosely identified with arbitrarily excited macroscopic string states. We construct… (More)

Dimitri P. Skliros, Edmund J. Copeland, and Paul M. Saffin School of Physics and Astronomy, University of Nottingham, Nottingham, Nottinghamshire NG7 2RD, UK (Dated: 10 June 2013) We study the decay… (More)

We describe how to cancel (when this is desirable) all tadpole and more generally all cephalopod Feynman diagrams in generic interacting scalar field theories to all orders in perturbation theory.… (More)

Abstract This is the first of a series of detailed papers on string amplitudes with highly excited strings (HES). In the present paper we construct a generating function for string amplitudes with… (More)