Search Results - "Bastianelli, Fiorenzo"
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Axial gravity and anomalies of fermions
Published in The European physical journal. C, Particles and fields (01-03-2020)“…We consider a Dirac fermion in a metric-axial-tensor (MAT) background. By regulating it with Pauli–Villars fields we analyze and compute its full anomaly…”
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2
Chiral fermions, dimensional regularization, and the trace anomaly
Published in Nuclear physics. B (01-10-2022)“…We investigate the trace anomaly of a chiral fermion in dimensional regularization, considering in detail the simplest case of coupling to an abelian gauge…”
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3
On the trace anomaly of a Weyl fermion in a gauge background
Published in The European physical journal. C, Particles and fields (01-04-2019)“…We study the trace anomaly of a Weyl fermion in an abelian gauge background. Although the presence of the chiral anomaly implies a breakdown of gauge…”
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Light bending from eikonal in worldline quantum field theory
Published in The journal of high energy physics (01-02-2022)“…A bstract Using the worldline quantum field theory (WQFT) formalism for classical scattering, we study the deflection of light by a heavy massive…”
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5
Worldline description of a bi-adjoint scalar and the zeroth copy
Published in The journal of high energy physics (01-12-2021)“…A bstract Bi-adjoint scalars are helpful in studying properties of color/kinematics duality and the double copy, which relates scattering amplitudes of gauge…”
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6
Path integral calculation of heat kernel traces with first order operator insertions
Published in Nuclear physics. B (01-11-2020)“…We study generalized heat kernel coefficients, which appear in the trace of the heat kernel with an insertion of a first-order differential operator, by using…”
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7
Gauge-invariant coefficients in perturbative quantum gravity
Published in The European physical journal. C, Particles and fields (01-12-2022)“…Heat kernel methods are useful for studying properties of quantum gravity. We recompute the first three heat kernel coefficients in perturbative quantum…”
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One-loop quantum gravity from the N particle 4 spinning
Published in The journal of high energy physics (01-11-2019)“…A bstract We construct a spinning particle that reproduces the propagation of the graviton on those curved backgrounds which solve the Einstein equations, with…”
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9
Quantum mechanical path integrals in curved spaces and the type-A trace anomaly
Published in The journal of high energy physics (01-04-2017)“…A bstract Path integrals for particles in curved spaces can be used to compute trace anomalies in quantum field theories, and more generally to study…”
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10
On the simplified path integral on spheres
Published in The European physical journal. C, Particles and fields (02-11-2017)“…We have recently studied a simplified version of the path integral for a particle on a sphere, and more generally on maximally symmetric spaces, and proved…”
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11
Effective action for higher spin fields on (A)dS backgrounds
Published in The journal of high energy physics (01-12-2012)“…A bstract We study the one loop effective action for a class of higher spin fields by using a first-quantized description. The latter is obtained by…”
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Simplified path integral for supersymmetric quantum mechanics and type-A trace anomalies
Published in The journal of high energy physics (01-05-2018)“…A bstract Particles in a curved space are classically described by a nonlinear sigma model action that can be quantized through path integrals. The latter…”
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13
Quantum theory of massless (p, 0)-forms
Published in The journal of high energy physics (01-09-2011)“…We describe the quantum theory of massless ( p , 0)-forms that satisfy a suitable holomorphic generalization of the free Maxwell equations on Kähler spaces…”
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14
Quantum theories of (p, q)-forms
Published in The journal of high energy physics (01-08-2012)“…A bstract We describe quantum theories for massless ( p, q )-forms living on Kähler spaces. In particular we consider four different types of quantum theories:…”
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15
Extended SUSY quantum mechanics: transition amplitudes and path integrals
Published in The journal of high energy physics (01-06-2011)“…Quantum mechanical models with extended supersymmetry find interesting applications in worldline approaches to relativistic field theories. In this paper we…”
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16
Obtaining Fully Polarized Amplitudes in Gauge Invariant Form
Published in Moscow University physics bulletin (01-04-2022)“…We describe progress applying the Worldline Formalism of quantum field theory to the fermion propagator dressed by -photons to study multi-linear Compton…”
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17
U(N|M) quantum mechanics on Kähler manifolds
Published in The journal of high energy physics (01-05-2010)“…We study the extended supersymmetric quantum mechanics, with supercharges transforming in the fundamental representation of U( N | M ), as realized in certain…”
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18
On the trace anomaly of a Weyl fermion
Published in The journal of high energy physics (01-11-2016)“…A bstract We calculate the trace anomaly of a Weyl fermion coupled to gravity by using Fujikawa’s method supplemented by a consistent regulator. The latter is…”
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19
One-loop quantum gravity from a worldline viewpoint
Published in The journal of high energy physics (01-07-2013)“…A bstract We develop a worldline approach to quantum gravity in D = 4. Using the background field method we consider the covariantly gauge fixed…”
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20
Six-dimensional one-loop divergences in quantum gravity from the N = 4 spinning particle
Published in The journal of high energy physics (25-10-2023)“…A bstract In this work, we investigate the computation of the counterterms necessary for the renormalization of the one-loop effective action of quantum…”
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