33 citations · 150 across the 15 of their papers we have counts for
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Representations of the fractional d'Alembertian and initial conditions in fractional dynamics
Gianluca Calcagni, Giuseppe Nardelli
We construct representations of complex powers of the d'Alembertian operator in Lorentzian signature and pinpoint one which is self-adjoint and suitable for classical and qu…
Form factors, spectral and Källén-Lehmann representation in nonlocal quantum gravity
Fabio Briscese, Gianluca Calcagni, Leonardo Modesto +1
We discuss the conical region of convergence of exponential and asymptotically polynomial form factors and their integral representations. Then, we calculate the spectral represent…
A new rolling tachyon solution of cubic string field theory
V. Forini, G. Grignani, G. Nardelli
We present a new analytic time dependent solution of cubic string field theory at the lowest order in the level truncation scheme. The tachyon profile we have found is a bounce in…
Exact potential and scattering amplitudes from the tachyon non-linear -function
E. Coletti, V. Forini, G. Grignani +2
We compute, on the disk, the non-linear tachyon -function, , of the open bosonic string theory. is determined both in an expansion to the third power of the field and…
Scaling properties of the perturbative Wilson loop in two-dimensional non-commutative Yang-Mills theory
A. Bassetto, G. Nardelli, A. Torrielli
Commutative Yang-Mills theories in 1+1 dimensions exhibit an interesting interplay between geometrical properties and U(N) gauge structures: in the exact expression of a Wilson loo…
Perturbative Wilson loop in two-dimensional non-commutative Yang-Mills theory
A. Bassetto, G. Nardelli, A. Torrielli
We perform a perturbative Wilson loop calculation for the U(N) Yang-Mills theory defined on non-commutative one space - one time dimensions. We choose the light-con…
Zero Modes and Conformal Anomaly in Liouville Vortices
G. Nardelli, M. Peloso
The partition function of a two dimensional Abelian gauge model reproducing magnetic vortices is discussed in the harmonic approximation. Classical solutions exhibit conformal inva…
Discontinuous behavior of perturbative Yang-Mills theories in the limit of dimensions D->2
A. Bassetto, R. Begliuomini, G. Nardelli
We calculate in dimensions and in light-cone gauge (LCG) the perturbative contribution to a rectangular Wilson loop in the (t,x)-plane coming from diagrams…
Time exponentiation of a Wilson loop for Yang-Mills theories in 2+εdimensions
A. Bassetto, R. Begliuomini, G. Nardelli
A rectangular Wilson loop centered at the origin, with sides parallel to space and time directions and length and respectively, is perturbatively evaluated ${\cal O}(g^4)…
A class of two-dimensional Yang-Mills vacua and their relation to the non-linear sigma model
A. Bassetto, G. Nardelli
Classical vacuum - pure gauge - solutions of Euclidean two-dimensional SU(2) Yang-Mills theories are studied. Topologically non-trivial vacua are found in a class of gauge group el…
The Schwinger Model in Light-Cone Gauge
A. Bassetto, G. Nardelli, E. Vianello
The Schwinger model, defined in the space interval , with (anti)periodic boundary conditions, is canonically quantized in the light-cone gauge by means of e…
Two-dimensional Yang-Mills theory in the leading 1/N expansion revisited
A. Bassetto, G. Nardelli, A. Shuvaev
We obtain a formal solution of an integral equation for bound states, depending on a parameter ηwhich interpolates between 't Hooft's (η=0) and Wu's (η=1) equations. We a…
Canonical Analysis of Poincare' Gauge Theories for Two Dimansional Gravity
G. Grignani, G. Nardelli
Following the general method discussed in Refs.[1,2], Liouville gravity and the 2 dimensional model of non-Einstenian gravity can…
Reply to `Comment on Gravity and the Poincare' Group'
G. Grignani, G. Nardelli
In the first order form, the model considered by Strobl presents, besides local Lorentz and diffeomorphism invariances, an additional local non-linear symmetry. When the model is r…