TY - JOUR
T1 - Unparticle Casimir effect
AU - Frassino, Antonia M.
AU - Nicolini, Piero
AU - Panella, Orlando
N1 - Funding Information:
This work has been supported by the Helmholtz International Center for FAIR within the framework of the LOEWE program (Landesoffensive zur Entwicklung Wissenschaftlich-Ökonomischer Exzellenz) launched by the State of Hesse, by the Helmholtz Research School for Quark Matter Studies (H-QM), by the project “Evaporation of microscopic black holes” under the grants NI 1282/2-1 and NI 1282/2-2 of the German Research Foundation (DFG), and in part by the European Cooperation in Science and Technology (COST) action MP0905 “Black Holes in a Violent Universe”. This research was supported in part by Perimeter Institute for Theoretical Physics. Research at Perimeter Institute is supported by the Government of Canada through Industry Canada and by the Province of Ontario through the Ministry of Economic Development and Innovation. The authors are grateful to J. Mureika for valuable comments.
Publisher Copyright:
© 2017 The Author(s)
PY - 2017/9/10
Y1 - 2017/9/10
N2 - In this paper we present the un-Casimir effect, namely the study of the Casimir energy in the presence of an unparticle component in addition to the electromagnetic field contribution. The distinctive feature of the un-Casimir effect is a fractalization of metallic plates. This result emerges through a new dependence of the Casimir energy on the plate separation that scales with a continuous power controlled by the unparticle dimension. As long as the perfect conductor approximation is valid, we find bounds on the unparticle scale that are independent of the effective coupling constant between the scale invariant sector and ordinary matter. We find regions of the parameter space such that for plate distances around 5 μm and larger the un-Casimir bound wins over the other bounds.
AB - In this paper we present the un-Casimir effect, namely the study of the Casimir energy in the presence of an unparticle component in addition to the electromagnetic field contribution. The distinctive feature of the un-Casimir effect is a fractalization of metallic plates. This result emerges through a new dependence of the Casimir energy on the plate separation that scales with a continuous power controlled by the unparticle dimension. As long as the perfect conductor approximation is valid, we find bounds on the unparticle scale that are independent of the effective coupling constant between the scale invariant sector and ordinary matter. We find regions of the parameter space such that for plate distances around 5 μm and larger the un-Casimir bound wins over the other bounds.
KW - Casimir effect
KW - Plates fractalization
KW - Scale invariance
KW - Unparticles
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U2 - 10.1016/j.physletb.2017.07.029
DO - 10.1016/j.physletb.2017.07.029
M3 - Article
AN - SCOPUS:85025457618
SN - 0370-2693
VL - 772
SP - 675
EP - 680
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ER -