14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of PisaIT5.2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT4k papers
- Centre National de la Recherche ScientifiqueFR3.9k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT3.7k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR3.6k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT3.5k papers
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18 papers · 2 filters
Quantum mechanics of 4-derivative theories
Alberto Salvio, Alessandro Strumia
A renormalizable theory of gravity is obtained if the dimension-less 4-derivative kinetic term of the graviton, which classically suffers from negative unbounded energy, admits a s…
Constraints on Single-Field Inflation
David Pirtskhalava, Luca Santoni, Enrico Trincherini
Many alternatives to canonical slow-roll inflation have been proposed over the years, one of the main motivations being to have a model, capable of generating observable values of…
Rényi entropy and conformal defects
Lorenzo Bianchi, Marco Meineri, Robert C. Myers +1
We propose a field theoretic framework for calculating the dependence of Rényi entropies on the shape of the entangling surface in a conformal field theory. Our approach rests on r…
Background field method and the cohomology of renormalization
Damiano Anselmi
Using the background field method and the Batalin-Vilkovisky formalism, we prove a key theorem on the cohomology of perturbatively local functionals of arbitrary ghost numbers, in…
Some reference formulas for the generating functions of canonical transformations
Damiano Anselmi
We study some properties of the canonical transformations in classical mechanics and quantum field theory and give a number of practical formulas concerning their generating functi…
Geometry and Dynamics of a Coupled 4D-2D Quantum Field Theory
Stefano Bolognesi, Chandrasekhar Chatterjee, Jarah Evslin +3
Geometric and dynamical aspects of a coupled 4D-2D interacting quantum field theory - the gauged nonAbelian vortex - are investigated. The fluctuations of the internal 2D nonAbelia…
2d Partition Function in Omega-background and Vortex/Instanton Correspondence
Toshiaki Fujimori, Taro Kimura, Muneto Nitta +1
We derive the exact vortex partition function in 2d = (2,2) gauge theory on the Omega-background, applying the localization scheme in the Higgs phase. We show that th…
Small Winding-Number Expansion: Vortex Solutions at Critical Coupling
Keisuke Ohashi
We study an axially symmetric solution of a vortex in the Abelian-Higgs model at critical coupling in detail. Here we propose a new idea for a perturbative expansion of a solution,…
Critical mass renormalization in renormalized phi4 theories in two and three dimensions
Andrea Pelissetto, Ettore Vicari
We consider the O(N)-symmetric phi4 theory in two and three dimensions and determine the nonperturbative mass renormalization needed to obtain the phi4 continuum theory. The requir…
Dynamics of Perturbations in Double Field Theory & Non-Relativistic String Theory
Sung Moon Ko, Charles Melby-Thompson, Rene Meyer +1
Double Field Theory provides a geometric framework capable of describing string theory backgrounds that cannot be understood purely in terms of Riemannian geometry -- not only glob…
Notes on Theta Dependence in Holographic Yang-Mills
Francesco Bigazzi, Aldo L. Cotrone, Roberto Sisca
Effects of the theta parameter are studied in Witten's model of holographic 4d Yang-Mills, where theta is the coefficient of the CP-breaking topological term. First, the gravity ba…
Large Non-Gaussianity in Slow-Roll Inflation
David Pirtskhalava, Luca Santoni, Enrico Trincherini +1
Canonical models of single-field, slow-roll inflation do not lead to appreciable non-Gaussianity, unless derivative interactions of the inflaton become uncontrollably large. We pro…
Born Reciprocity and Cosmic Accelerations
S. Bolognesi
The trans-Planckian theory is a model that realizes concretely the Born reciprocity idea, which is the postulate of absolute equivalence between coordinate and momenta . Thi…
Weakly Broken Galileon Symmetry
David Pirtskhalava, Luca Santoni, Enrico Trincherini +1
Effective theories of a scalar invariant under the internal \textit{galileon symmetry} have been extensively studied due to their special theoretical and phenome…
NonAbelian Vortices, Large Winding Limits and Aharonov-Bohm Effects
Stefano Bolognesi, Chandrasekhar Chatterjee, Kenichi Konishi
Remarkable simplification arises from considering vortex equations in the large winding limit. This was recently used in [1] to display all sorts of vortex zeromodes, the orientati…
Boundary and Interface CFTs from the Conformal Bootstrap
F. Gliozzi, P. Liendo, M. Meineri +1
We explore some consequences of the crossing symmetry for defect conformal field theories, focusing on codimension one defects like flat boundaries or interfaces. We study surface…
Adler-Bardeen theorem and cancellation of gauge anomalies to all orders in nonrenormalizable theories
Damiano Anselmi
We prove the Adler-Bardeen theorem in a large class of general gauge theories, including nonrenormalizable ones. We assume that the gauge symmetries are general covariance, local L…
Ward identities and gauge independence in general chiral gauge theories
Damiano Anselmi
Using the Batalin-Vilkovisky formalism, we study the Ward identities and the equations of gauge dependence in potentially anomalous general gauge theories, renormalizable or not. A…