Unparticle Casimir effect

Frassino, Antonia Micol; Nicolini, Piero; Panella, O.

doi:10.1016/j.physletb.2017.07.029

Cited by 15 publications

(22 citation statements)

References 67 publications

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“…The quite vast current literature of Casimir interactions in relation to a massive photon discusses only the standard Casimir effect in the geometry of two parallel conductor plates. This had been studied in the pioneering work of Barton and Dombey [20,21] and subsequently taken up by several authors in other BSM scenarios [28][29][30][31][32][33][34][35][37][38][39][40][41], but always considering the Casimir effect between parallel plates.…”

Section: Discussionmentioning

confidence: 99%

“…By substituting (41) in (34), differentiating and performing the appropriate change of variables one obtains the following expression:…”

Section: B Casimir -Polder Interaction For Massive Photonsmentioning

confidence: 99%

“…In a recent work [34,35] some of the present authors derived the Casimir effect for the unparticle field in the geometry of the parallel conductor plates. The central result is that the unparticle Casimir energy is given by a mass integral over the Casimir energy at given mass:…”

Section: Unparticle Casimir-poldermentioning

confidence: 99%

“…The fact that the unparticle contribution becomes relevant and possibly detectable only for d U values very close to unity parallels what has been found in the analysis of the Unparticle Casimir effect in ref. [34].…”

Section: Unparticlesmentioning

confidence: 99%

“…For instance within models with a generalized uncertainty principle (GUP) computing the first order correction in terms of the minimal length ( √ β) [28,29]. Other works include investigating the Casimir effect within Randall-Sundrum models [30,31], non commutative Randall-Sundrum models [32], compactified universal extra dimensions (UED) [33] and a scale invariant theory (unparticles) [34]. See also [35] for an alternative approach to the unparticle Casimir effect, based on the extended problem of Caffarelli and Silvestre [36], of the quantization of the unparticle action of a scalar field with scaling dimension d U .…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Casimir-Polder interactions with massive photons: Implications for BSM physics

Mattioli¹,

Frassino²,

Panella³

2019

Phys. Rev. D

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We present the derivation of the Casimir-Polder interactions mediated by a massive photon between two neutral systems described in terms of their atomic polarizability tensors. We find a compact expression for the leading term at large distances between the two systems. Our result reduces, in the mass-less photon limit, to the standard Casimir-Polder. We discuss implications of our findings with respect to recent scenarios of physics beyond the standard model such as universal extra dimensions, Randall-Sundrum and scale-invariant models. For each model we compute the correction to the Casimir-Polder interaction in terms of the free parameters.

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Section: Discussionmentioning

confidence: 99%

“…By substituting (41) in (34), differentiating and performing the appropriate change of variables one obtains the following expression:…”

Section: B Casimir -Polder Interaction For Massive Photonsmentioning

confidence: 99%

Section: Unparticle Casimir-poldermentioning

confidence: 99%

Section: Unparticlesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Casimir-Polder interactions with massive photons: Implications for BSM physics

Mattioli¹,

Frassino²,

Panella³

2019

Phys. Rev. D

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Exotic spin-dependent interactions through unparticle exchange

Wu,

Zhang,

Yan

2024

J. High Energ. Phys.

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The potential discovery of unparticles could have far-reaching implications for particle physics and cosmology. For over a decade, high-energy physicists have extensively studied the effects of unparticles. In this study, we derive six types of nonrelativistic potentials between fermions induced by unparticle exchange in coordinate space. We consider all possible combinations of scalar, pseudo-scalar, vector, and axial-vector couplings to explore the full range of possibilities. Previous studies have only examined scalar-scalar (SS), pseudoscalar-pseudoscalar (PP), vector-vector (VV), and axial-axial-vector (AA) type interactions, which are all parity even. We propose SP and VA interactions to extend our understanding of unparticle physics, noting that parity conservation is not always guaranteed in modern physics. We explore the possibilities of detecting unparticles through the long-range interactions they may mediate with ordinary matter. Dedicated experiments using precision measurement methods can be employed to search for such interactions. We discuss the properties of these potentials and estimate constraints on their coupling constants based on existing experimental data. Our findings indicate that for some particular values of the scaling dimension $$ {d}_{\mathcal{U}} $$ d U , the coupling between scalar or vector unparticles and fermions is constrained by several orders of magnitude more tightly than the previous limits. The underlying reason for this improvement is analyzed. Limits are also set on the newly proposed SP and VA interactions for continuous $$ {d}_{\mathcal{U}} $$ d U values, allowing the exploration of the $$ {d}_{\mathcal{U}} $$ d U dependence of the constraints. It turns out that the bounds exhibit an exponential decay trend with the increasing $$ {d}_{\mathcal{U}} $$ d U .

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Unparticle may be a remedy to the information loss in the scattering of fermion off dilaton black-hole

Rahaman¹

2018

Nuclear Physics B

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We study s-wave scattering of fermion off dilaton black-hole. With one loop correction it was found to suffer from nonpreservation of information and that of course, went against Hawking's revised suggestion on this issue. A nonstandard approach, e.g. the probable existence of unparticle in (1+1) dimension has been adopted here that shows a remedy to get rid of the danger of information loss to bring it in agrees with the Hawking's revised suggestion.

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Unparticle Casimir effect

Cited by 15 publications

References 67 publications

Casimir-Polder interactions with massive photons: Implications for BSM physics

Casimir-Polder interactions with massive photons: Implications for BSM physics

Exotic spin-dependent interactions through unparticle exchange

Unparticle may be a remedy to the information loss in the scattering of fermion off dilaton black-hole

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