The decay of highly excited closed strings

Wilkinson, R.; Turok, Neil; Mitchell, D.

doi:10.1016/0550-3213(90)90032-9

Cited by 41 publications

(62 citation statements)

References 11 publications

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“…This formula nicely encompass all the particle width decays in the standard model (muons, Higgs, etc), as well as the decay width of topological and non topological solitons, cosmic defects and fundamental quantum strings [19]. A quantum closed string in an Nth excited state decays into lower excited states (including the dilaton, graviton and massless antisymmetric tensor fields) with a total width (to the dominant order (one string loop)) given by [20] …”

Section: Unified Quantum Decay Of Qft Elementary Particles Black mentioning

confidence: 99%

Conceptual Unification of Elementary Particles, Black Holes, Quantum De Sitter and Anti-De Sitter String States

Sánchez

2004

Int. J. Mod. Phys. A

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We provide a conceptual unified description of the quantum properties of black holes (BH), elementary particles, de Sitter (dS) and Anti de Sitter (AdS) string states.The conducting line of argument is the classical-quantum (de Broglie, Compton) duality here extended to the quantum gravity (string) regime (wave-particle-string duality). The semiclassical (QFT) and quantum (string) gravity regimes are respectively characterized and related: sizes, masses, accelerations and temperatures. The Hawking temperature, elementary particle and string temperatures are shown to be the same concept in different energy regimes and turn out the precise classical-quantum duals of each other; similarly, this result holds for the BH decay rate, heavy particle and string decay rates; BH evaporation ends as quantum string decay into pure (non mixed) radiation. Microscopic density of states and entropies in the two (semiclassical and quantum) gravity regimes are derived and related, an unifying formula for BH, dS and AdS states is provided in the two regimes. A string phase transition towards the dS string temperature (which is shown to be the precise quantum dual of the semiclassical (Hawking-Gibbons) dS temperature) is found and characterized; such phase transition does not occurs in AdS alone. High string masses (temperatures) show a further (square root temperature behaviour) sector in AdS. From the string mass spectrum and string density of states in curved backgrounds, quantum properties of the backgrounds themselves are extracted and the quantum mass spectrum of BH, dS and AdS radii obtained. Contents

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Section: Unified Quantum Decay Of Qft Elementary Particles Black mentioning

confidence: 99%

Conceptual Unification of Elementary Particles, Black Holes, Quantum De Sitter and Anti-De Sitter String States

Sánchez

2004

Int. J. Mod. Phys. A

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“…Traditionally, these are described in a mass eigenstate basis, and calculations almost exclusively [10][11][12][13][14][15][16][17] focus on leading Regge trajectory states which do not exhibit generic features (such as non-degenerate cusps [27]). Although physical vertex operators for arbitrary mass eigenstates are known [9], they are not a natural basis for highly excited strings as the resulting amplitudes generically become unwieldy.…”

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confidence: 99%

“…Decay rates may be extracted from the imaginary part of two-point amplitudes [10][11][12][13][14][15] [32,33,35]. When strings in the loops go onshell, they can appear in final states.…”

mentioning

confidence: 99%

“…When strings in the loops go onshell, they can appear in final states. In the usual approach [10][11][12][13][14][15], dependence on the loop momenta is not manifest, and so one does not have a handle on the frequency and isotropy of the emitted radiation. We bypass this obstacle by considering instead the fixed (A-cycle) loop momentum amplitude [32], M(P), defined (at genus-…”

mentioning

confidence: 99%

“…Most massive closed strings are unstable and decay [10][11][12][13][14][15] [16,17], typical decay rates being (when massive radiation is negligible),…”

mentioning

confidence: 99%

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Duality and Decay of MacroscopicFStrings

2013

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Cosmic strings in string perturbation theory

Skliros

2011

Fortschritte der Physik

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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 explicit normal ordered cosmic string vertex operators, which are given in terms of covariant coherent string states. We also write down the general expression for arbitrarily excited mass‐eigenstate covariant vertex operators, and discuss the construction of string wavepackets.

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The decay of highly excited closed strings

Cited by 41 publications

References 11 publications

Conceptual Unification of Elementary Particles, Black Holes, Quantum De Sitter and Anti-De Sitter String States

Conceptual Unification of Elementary Particles, Black Holes, Quantum De Sitter and Anti-De Sitter String States

Duality and Decay of MacroscopicFStrings

Cosmic strings in string perturbation theory

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