Particle production in tachyon condensation

Gian Luigi Alberghi; Roberto Casadio; Alessandro Tronconi

doi:10.1088/1126-6708/2004/06/040

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Particle production in tachyon condensation

Gian Luigi Alberghi^1,2, Roberto Casadio^1,2 and Alessandro Tronconi^1,2

Published 1 July 2004 • Journal of High Energy Physics, Volume 2004, JHEP06(2004)

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Author e-mails

casadio@bo.infn.it

Author affiliations

¹ Dipartimento di Fisica, Università di Bologna

² Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Italy

Dates

Received 15 April 2004
Accepted 22 June 2004
Published 1 July 2004

Citation

Gian Luigi Alberghi et al JHEP06(2004)040

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DOI

https://doi.org/10.1088/1126-6708/2004/06/040

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Abstract

We study particle production in the tachyon condensation process as described by different effective actions for the tachyon. By making use of invariant operators, we are able to obtain exact results for the density of produced particles, which is shown to depend strongly on the specific action. In particular, the rate of particle production remains finite only for one of the actions considered, hence confirming results previously appeared in the literature.

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References

[1]
N.D. Lambert and I. Sachs, Tachyon dynamics and the effective action approximation 2003 Phys. Rev. D 67 026005 [hep-th/0208217]
Crossref Preprint
[2]
N.D. Lambert and I. Sachs, On higher derivative terms in tachyon effective actions 2001 J. High Energy Phys. JHEP06(2001)060 [hep-th/0104218]
IOPscience Preprint
[3]
A.A. Tseytlin, Sigma model approach to string theory effective actions with tachyons 2001 J. Math. Phys. 42 2854 [hep-th/0011033]
Crossref Preprint
[4]
A. Sen, Field theory of tachyon matter 2002 Mod. Phys. Lett. A 17 1797 [hep-th/0204143]
Crossref Preprint
[5]
A. Sen, Tachyon matter 2002 J. High Energy Phys. JHEP07(2002)065 [hep-th/0203265]
IOPscience Preprint
[6]
A. Sen, Rolling tachyon 2002 J. High Energy Phys. JHEP04(2002)048 [hep-th/0203211]
IOPscience Preprint
[7]
M. Gutperle and A. Strominger, Timelike boundary Liouville theory 2003 Phys. Rev. D 67 126002 [hep-th/0301038]
Crossref Preprint
[8]
D. Kutasov and V. Niarchos, Tachyon effective actions in open string theory 2003 Nucl. Phys. B 666 56 [hep-th/0304045]
Crossref Preprint
[9]
M. Berkooz, B. Craps, D. Kutasov and G. Rajesh, Comments on cosmological singularities in string theory 2003 J. High Energy Phys. JHEP03(2003)031 [hep-th/0212215]
IOPscience Preprint
[10]
G.N. Felder, L. Kofman and A. Starobinsky, Caustics in tachyon matter and other Born-Infeld scalars 2002 J. High Energy Phys. JHEP09(2002)026 [hep-th/0208019]
IOPscience Preprint
[11]
A.V. Frolov, L. Kofman and A.A. Starobinsky, Prospects and problems of tachyon matter cosmology 2002 Phys. Lett. B 545 8 [hep-th/0204187]
Crossref Preprint
[12]
J. Kluson, Particle production on half S-brane [hep-th/0306002]
Preprint
[13]
Y. Brihaye, B. Hartmann, T. Ioannidou and W.J. Zakrzewski, Gravitating SU(N) monopoles from harmonic maps, 2004 Class. Quantum Grav. 21 517 [hep-th/0310076]
IOPscience Preprint
[14]
H.R. Lewis, Class of exact invariants for classical and quantum time-dependent harmonic oscillators 1968 J. Math. Phys. 9 1976
Crossref
H.R. Lewis and W.B. Riesenfeld, An exact quantum theory of the time dependent harmonic oscillator and of a charged particle time dependent electromagnetic field 1969 J. Math. Phys. 10 1458
Crossref
G.L. Alberghi, R. Casadio, G.P. Vacca and G. Venturi, Gravitational collapse of a shell of quantized matter 1999 Class. Quantum Grav. 16 131 [gr-qc/9808026]
IOPscience Preprint
[15]
J. Kluson, D-brane effective actions and particle production near the beginning of the tachyon condensation 2004 J. High Energy Phys. JHEP01(2004)019 [hep-th/0312086]
IOPscience Preprint
[16]
M. Abramowitz and I. Stegun, Handbook of mathematical functions with formulas, graphs, and mathematical table Dover Publishing, 1965

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