158 citations · 1.3k across the 43 of their papers we have counts for
30 papers · 1 filter
Constrained integrability and anyonic chains
Matthew Blakeney, Luke Corcoran, Marius de Leeuw
We review the notion of Yang-Baxter integrability for spin chains that have Hilbert spaces with constraints, such as a Rydberg blockade. We focus on anyonic chains, whose constrain…
An integrable deformed Landau-Lifshitz model with particle production?
Marius de Leeuw, Andrea Fontanella, Juan Miguel Nieto García
We discuss the continuum limit of a non-Hermitian deformation of the Heisenberg XXX spin chain. This model appeared in the classification of solutions of the Yang--Baxte…
Integrable Conformal Defects in N=4 SYM
Marius de Leeuw, Adolfo Holguin
In this paper we classify integrable conformal defects in N=4 SYM theory for which the scalar fields pick up a non-trivial vacuum expectation value. Defects of this form correspond…
A perturbative approach to the non-relativistic string spectrum
Marius de Leeuw, Andrea Fontanella, Juan Miguel Nieto García
In this letter we use a perturbative approach to find the spectrum of non-relativistic strings in the String Newton-Cartan (SNC) AdSS spacetime. We perturb the bosoni…
All regular solutions of the Yang-Baxter equation
Luke Corcoran, Marius de Leeuw
We complete the classification of regular solutions of the Yang-Baxter equation. Apart from previously known models, we find four new models of non-difference form. All…
Flag Integrable Models and Generalized Graded Algebras
Marius de Leeuw, Rafael I. Nepomechie, Ana L. Retore
We introduce new classes of integrable models that exhibit a structure similar to that of flag vector spaces. We present their Hamiltonians, R-matrices and Bethe-ansatz solutions.…
Lifting integrable models and long-range interactions
Marius de Leeuw, Ana. L. Retore
In this paper we discuss a constructive approach to check whether a constant Hamiltonian is Yang-Baxter integrable. We then apply our method to long-range interactions and find the…
Integrable deformations of AdS/CFT
Marius de Leeuw, Anton Pribytok, Ana L. Retore +1
In this paper we study in detail the deformations introduced in [1] of the integrable structures of the AdS integrable models. We do this by embedding the corresponding sca…
Asymptotic one-point functions in AdS/dCFT
Isak Buhl-Mortensen, Marius de Leeuw, Asger C. Ipsen +2
We take the first step in extending the integrability approach to one-point functions in AdS/dCFT to higher loop orders. More precisely, we argue that the formula encoding all tree…
A Quantum Check of AdS/dCFT
Isak Buhl-Mortensen, Marius de Leeuw, Asger C. Ipsen +2
We build the framework for performing loop computations in the defect version of N=4 super Yang-Mills theory which is dual to the probe D5-D3 brane system with background gauge-fie…
One-loop Wilson loops and the particle-interface potential in AdS/dCFT
Marius de Leeuw, Asger C. Ipsen, Charlotte Kristjansen +1
We initiate the calculation of quantum corrections to Wilson loops in a class of four-dimensional defect conformal field theories with vacuum expectation values based on N=4 super…
AdS/dCFT one-point functions of the SU(3) sector
Marius de Leeuw, Charlotte Kristjansen, Stefano Mori
We propose a closed formula for the tree-level one-point functions of non-protected operators belonging to an SU(3) sub-sector of the defect CFT dual to the D3-D5 probe brane syste…
One-loop one-point functions in gauge-gravity dualities with defects
Isak Buhl-Mortensen, Marius de Leeuw, Asger C. Ipsen +2
We initiate the calculation of loop corrections to correlation functions in 4D defect CFTs. More precisely, we consider N=4 SYM with a codimension-one defect separating two regions…
One-point Functions in AdS/dCFT from Matrix Product States
Isak Buhl-Mortensen, Marius de Leeuw, Charlotte Kristjansen +1
One-point functions of certain non-protected scalar operators in the defect CFT dual to the D3-D5 probe brane system with k units of world volume flux can be expressed as overlaps…
One-point Functions in Defect CFT and Integrability
Marius de Leeuw, Charlotte Kristjansen, Konstantin Zarembo
We calculate planar tree level one-point functions of non-protected operators in the defect conformal field theory dual to the D3-D5 brane system with k units of the world volume f…
Factorized soft graviton theorems at loop level
Johannes Broedel, Marius de Leeuw, Jan Plefka +1
We analyze the low-energy behavior of scattering amplitudes involving gravitons at loop level in four dimensions. The single-graviton soft limit is controlled by soft operators whi…
Constraining subleading soft gluon and graviton theorems
Johannes Broedel, Marius de Leeuw, Jan Plefka +1
We show that the form of the recently proposed subleading soft graviton and gluon theorems in any dimension are severely constrained by elementary arguments based on Poincaré and g…
Deformed one-loop amplitudes in N = 4 super-Yang-Mills theory
Johannes Broedel, Marius de Leeuw, Matteo Rosso
We investigate Yangian-invariant deformations of one-loop amplitudes in N = 4 super-Yang-Mills theory employing an algebraic representation of amplitudes. In this language, we repr…
On the exact spectrum and mirror duality of the (AdS_5 x S^5)_eta superstring
Gleb Arutyunov, Marius de Leeuw, Stijn J. van Tongeren
We discuss the spectrum of a string propagating on eta-deformed AdS_5 x S^5 by treating its world-sheet theory as an integrable quantum field theory. The exact S-matrix of this fie…
A dictionary between R-operators, on-shell graphs and Yangian algebras
Johannes Broedel, Marius de Leeuw, Matteo Rosso
We translate between different formulations of Yangian invariants relevant for the computation of tree-level scattering amplitudes in N=4 super-Yang--Mills theory. While the R-oper…
The Quantum Deformed Mirror TBA II
Gleb Arutyunov, Marius de Leeuw, Stijn J. van Tongeren
We discuss the description of generic excited states in the quantum deformed AdS_5 x S^5 mirror thermodynamic Bethe ansatz and derive the associated Y-system. This Y-system shows a…
Integrable boundaries in AdS/CFT: revisiting the Z=0 giant graviton and D7-brane
Marius de Leeuw, Vidas Regelskis
We consider the worldsheet boundary scattering and the corresponding boundary algebras for the Z=0 giant graviton and the Z=0 D7-brane in the AdS/CFT correspondence. We consider tw…
Secret Symmetries in AdS/CFT
Marius de Leeuw, Takuya Matsumoto, Sanefumi Moriyama +2
We discuss special quantum group (secret) symmetries of the integrable system associated to the AdS/CFT correspondence. These symmetries have by now been observed in a variety of f…
The spectral problem for strings on twisted AdS_5 x S^5
Marius de Leeuw, Stijn J. van Tongeren
We discuss the spectral problem for integrable superstrings on generically twisted AdS_5 x S^5, meaning all its orbifolds and TsT transformed versions. We explicitly give the asymp…