14 citations · 17 across the 15 of their papers we have counts for
15 papers
The auxiliary-deformed Breitenlohner-Maison model: duality frames and higher-dimensional origin
Daniele Bielli, Mattia Cesàro
The two-dimensional Breitenlohner-Maison (BM) model is a classically integrable subsector of general relativity endowed with two commuting Killing isometries, obtained via Ka…
The classical Yangian symmetry of Auxiliary Field Sigma Models
Daniele Bielli, Christian Ferko, Michele Galli +1
Integrable field theories exhibit infinitely many symmetries which underlie their solvability, but the structure of these symmetries can become obscured after performing an integra…
Relating auxiliary field formulations of duality-invariant and integrable field theories
Nicola Baglioni, Daniele Bielli, Michele Galli +1
Auxiliary field techniques have recently gained interest in four-dimensional non-linear electrodynamics and two-dimensional integrable sigma models. In these settings, coupling a s…
Boundary Bethe ansatz in massive
Daniele Bielli, Vasileios Moustakis, Alessandro Torrielli
In this paper we perform the boundary algebraic Bethe Ansatz for massive representations of the integrable system. This is a companion analysis to our…
Higher-Spin Currents and Flows in Auxiliary Field Sigma Models
Daniele Bielli, Christian Ferko, Michele Galli +1
We study local, higher-spin conserved currents in integrable sigma models that have been deformed via coupling to auxiliary fields. These currents generate integrability-prese…
Auxiliary Field Deformations of (Semi-)Symmetric Space Sigma Models
Daniele Bielli, Christian Ferko, Liam Smith +1
We generalize the auxiliary field deformations of the principal chiral model (PCM) introduced in arXiv:2405.05899 and arXiv:2407.16338 to sigma models whose target manifolds are sy…
Integrable Higher-Spin Deformations of Sigma Models from Auxiliary Fields
Daniele Bielli, Christian Ferko, Liam Smith +1
We construct a new infinite family of integrable deformations of the principal chiral model (PCM) parameterized by an interaction function of several variables, which extends the f…
T-Duality and -like Deformations of Sigma Models
Daniele Bielli, Christian Ferko, Liam Smith +1
We initiate the study of the interplay between T-duality and classical stress tensor deformations in two-dimensional sigma models. We first show that a general Abelian T-duality co…
Boundary Bethe ansatz in massless AdS3
Daniele Bielli, Vasileios Moustakis, Alessandro Torrielli
We construct the boundary algebraic Bethe Ansatz for the AdS3 X S3 X T4 integrable reflection problem restricted to the massless sector. We derive the double-row monodromy and find…
Auxiliary Field Sigma Models and Yang-Baxter Deformations
Daniele Bielli, Christian Ferko, Liam Smith +1
We combine the Yang-Baxter (YB) and bi-Yang-Baxter (bi-YB) deformations with higher-spin auxiliary field deformations to construct multi-parameter families of integrable deformatio…
JT gravity from non-Abelian T-duality
Daniele Bielli, Silvia Penati, Anayeli Ramirez
We study the geometries obtained by performing super non-Abelian T-duality of the Principal Chiral Model on OSp. While the initial model represents an appropriate 3D supergr…
Boundary scattering in massless
Daniele Bielli, Vaibhav Gautam, Vasileios Moustakis +2
We study the boundary integrability problem of the massless sector of string theory. Exploiting the difference-form of the massless scattering theory…
A study of integrable form factors in massless relativistic
Daniele Bielli, Vaibhav Gautam, Alessandro Torrielli
In this paper we initiate the study of form factors for the massless scattering of integrable superstrings, where the difference-form of the -matrix can be exploited to…
On Super Non-Abelian T-Duality of Symmetric and Semi-Symmetric Coset Sigma Models
Daniele Bielli
We review the algebraic approach to super non-Abelian T-Duality considered in [1], focusing on symmetric and semi-symmetric coset spaces on . We discuss a potential impediment…
Super Non-Abelian T-Duality
Daniele Bielli, Silvia Penati, Dmitri Sorokin +1
We analyse super non-Abelian T-duality for principal chiral models, symmetric space sigma models, and semi-symmetric space sigma models for general Lie supergroups. This includes T…