Abstract
We discuss the “wrong”-sign DBI theory as a prototype for classicalization. The theory lacks a UV completion and has to be defined with a fundamental UV cutoff. We study a quantum-mechanical toy model with similar properties. The model has a fundamental length scale and all physical states have momenta below the inverse of this scale. We show that, despite the terminology, the phenomenon of classicalization is of a quantum nature. Within the toy model it consists essentially of tunnelling through a region that is classically forbidden. The size of this region is proportional to the square root of the energy and can be much larger than the fundamental length scale. We discuss the implications for classicalization in scalar field theories.
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References
G. Dvali, G.F. Giudice, C. Gomez and A. Kehagias, UV-Completion by Classicalization, JHEP 08 (2011) 108 [arXiv:1010.1415] [INSPIRE].
G. Dvali and D. Pirtskhalava, Dynamics of Unitarization by Classicalization, Phys. Lett. B 699 (2011) 78 [arXiv:1011.0114] [INSPIRE].
G. Dvali, Classicalize or not to Classicalize?, arXiv:1101.2661 [INSPIRE].
G. Dvali, C. Gomez and A. Kehagias, Classicalization of Gravitons and Goldstones, JHEP 11 (2011) 070 [arXiv:1103.5963] [INSPIRE].
R. Percacci and L. Rachwal, On classicalization in nonlinear σ-models, Phys. Lett. B 711 (2012) 184 [arXiv:1202.1101] [INSPIRE].
C. Grojean and R.S. Gupta, Theory and LHC Phenomenology of Classicalon Decays, JHEP 05 (2012) 114 [arXiv:1110.5317] [INSPIRE].
N. Brouzakis, J. Rizos and N. Tetradis, On the dynamics of classicalization, Phys. Lett. B 708 (2012) 170 [arXiv:1109.6174] [INSPIRE].
J. Rizos and N. Tetradis, Dynamical classicalization, JHEP 04 (2012) 110 (2012) 110 [arXiv:1112.5546] [INSPIRE].
G. Dvali, A. Franca and C. Gomez, Road Signs for UV-Completion, arXiv:1204.6388 [INSPIRE].
V.F. Mukhanov and A. Vikman, Enhancing the tensor-to-scalar ratio in simple inflation, JCAP 02 (2006) 004 [astro-ph/0512066] [INSPIRE].
A. Adams, N. Arkani-Hamed, S. Dubovsky, A. Nicolis and R. Rattazzi, Causality, analyticity and an IR obstruction to UV completion, JHEP 10 (2006) 014 [hep-th/0602178] [INSPIRE].
E. Babichev, V. Mukhanov and A. Vikman, k-Essence, superluminal propagation, causality and emergent geometry, JHEP 02 (2008) 101 [arXiv:0708.0561] [INSPIRE].
E. Babichev, V.F. Mukhanov and A. Vikman, Escaping from the black hole?, JHEP 09 (2006) 061 [hep-th/0604075] [INSPIRE].
E. Babichev, V. Mukhanov and A. Vikman, Looking beyond the horizon, arXiv:0704.3301 [INSPIRE].
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ArXiv ePrint: 1206.3785
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Rizos, J., Tetradis, N. & Tsolias, G. Classicalization as a tunnelling phenomenon. J. High Energ. Phys. 2012, 54 (2012). https://doi.org/10.1007/JHEP08(2012)054
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DOI: https://doi.org/10.1007/JHEP08(2012)054