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19922026
Showing 2017 · hep-thShow all

10 papers · 2 filters

hep-th2017★ 5 cited

Dimensional Deception from Noncommutative Tori: An alternative to Horava-Lifschitz

Fedele Lizzi, Aleksandr Pinzul

We study the dimensional aspect of the geometry of quantum spaces. Introducing a physically motivated notion of the scaling dimension, we study in detail the model based on a fuzzy…

hep-th2017★ 7 cited

The Kirillov picture for the Wigner particle

J. M. Gracia-Bondia, F. Lizzi, J. C. Varilly +1

We discuss the Kirillov method for massless Wigner particles, usually (mis)named "continuous spin" or "infinite spin" particles. These appear in Wigner's classification of the unit…

hep-th2017★ 36 cited

Lorentz signature and twisted spectral triples

Agostino Devastato, Shane Farnsworth, Fedele Lizzi +1

We show how twisting the spectral triple of the Standard Model of elementary particles naturally yields the Krein space associated with the Lorentzian signature of spacetime. We di…

hep-th2017★ 3 cited

Generalized generating functional for mixed-representation Green's functions: A quantum mechanical approach

Massimo Blasone, Petr Jizba, Luca Smaldone

When one tries to take into account the non-trivial vacuum structure of Quantum Field Theory, the standard functional-integral tools such as generating functionals or transitional…

hep-th2017★ 34 cited

Gravitational Effective Action at Second Order in Curvature and Gravitational Waves

Xavier Calmet, Salvatore Capozziello, Daniel Pryer

We consider the full effective theory for quantum gravity at second order in curvature including non-local terms. We show that the theory contains two new degrees of freedom beyond…

hep-th2017★ 2 cited

Localization in the Rindler Wedge

M. Asorey, A. P. Balachandran, G. Marmo +1

One of the striking features of QED is that charged particles create a coherent cloud of photons. The resultant coherent state vectors of photons generate a non-trivial representat…

hep-th2017★ 4 cited

Geometric Low-Energy Effective Action in a Doubled Spacetime

Chen-Te Ma, Franco Pezzella

The ten-dimensional supergravity theory is a geometric low-energy effective theory and the equations of motion for its fields can be obtained from string theory by computing fu…

hep-th2017★ 18 cited

The B-field soft theorem and its unification with the graviton and dilaton

Paolo Di Vecchia, Raffaele Marotta, Matin Mojaza

In theories of Einstein gravity coupled with a dilaton and a two-form, a soft theorem for the two-form, known as the Kalb-Ramond B-field, has so far been missing. In this work we f…

hep-th2017★ 7 cited

The Gribov problem in Noncommutative gauge theory

Maxim Kurkov, Patrizia Vitale

After reviewing Gribov ambiguity of non-Abelian gauge theories, a phenomenon related to the topology of the bundle of gauge connections, we show that there is a similar feature for…

hep-th2017★ 36 cited

Double-soft behavior of the dilaton of spontaneously broken conformal invariance

Paolo Di Vecchia, Raffaele Marotta, Matin Mojaza

The Ward identities involving the currents associated to the spontaneously broken scale and special conformal transformations are derived and used to determine, through linear orde…