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Topological Gauging and Double Current Deformations
Sergei Dubovsky, Stefano Negro, Massimo Porrati
We study solvable deformations of two-dimensional quantum field theories driven by a bilinear operator constructed from a pair of conserved currents . We propose a quan…
Love symmetry
Panagiotis Charalambous, Sergei Dubovsky, Mikhail M. Ivanov
Perturbations of massless fields in the Kerr-Newman black hole background enjoy a (``Love'') SL symmetry in the suitably defined near zone approximation. We present…
Quantization of the Zigzag Model
John C. Donahue, Sergei Dubovsky
The zigzag model is a relativistic integrable -body system describing the leading high-energy semiclassical dynamics on the worldsheet of long confining strings in massive adjoi…
3D Yang-Mills Glueballs vs Closed Effective Strings
Sergei Dubovsky, Guzmán Hernández-Chifflet, Shahrzad Zare
Recent lattice results strongly support the Axionic String Ansatz (ASA) for quantum numbers of glueballs in 3D Yang-Mills theory. The ASA treats glueballs as closed bosonic strings…
Hidden Symmetry of Vanishing Love
Panagiotis Charalambous, Sergei Dubovsky, Mikhail M. Ivanov
We show that perturbations of massless fields in the Kerr black hole background enjoy a hidden ("Love") symmetry in the properly defined near zone a…
On the Vanishing of Love Numbers for Kerr Black Holes
Panagiotis Charalambous, Sergei Dubovsky, Mikhail M. Ivanov
It was shown recently that the static tidal response coefficients, called Love numbers, vanish identically for Kerr black holes in four dimensions. In this work, we confirm this re…
Classical Integrability of the Zigzag Model
John C. Donahue, Sergei Dubovsky
The zigzag model is a relativistic -body system arising in the high energy limit of the worldsheet scattering in adjoint two-dimensional QCD. We prove classical Liouville integr…
Confining Strings, Infinite Statistics and Integrability
John C. Donahue, Sergei Dubovsky
We study confining strings in massive adjoint two-dimensional chromodynamics. Off-shell, as a consequence of zigzag formation, the resulting worldsheet theory provides a non-trivia…
From QCD Strings to WZW
John C. Donahue, Sergei Dubovsky, Guzmán Hernández-Chifflet +1
According to the Axionic String Anstaz (ASA) confining flux tubes in pure gluodynamics are in the same equivalence class as a new family of integrable non-critical strings, called…
Undressing Confining Flux Tubes with
Chang Chen, Peter Conkey, Sergei Dubovsky +1
Lattice QCD simulations provide crucial information about the worldsheet dynamics of confining strings (flux tubes). An accurate extraction of the worldsheet -matrix from lattic…
The QCD -function On The String Worldsheet
Sergei Dubovsky
We consider confining strings in pure gluodynamics and its extensions with adjoint (s)quarks. We argue that there is a direct map between the set of bulk fields and the worldsheet…
Partition Function from Topological Gravity
Sergei Dubovsky, Victor Gorbenko, Guzman Hernandez-Chifflet
The deformation of a relativistic two-dimensional theory results in a solvable gravitational theory. Deformed scattering amplitudes can be obtained from coupling the un…
A Simple Worldsheet Black Hole
Sergei Dubovsky
We study worldsheet theory of confining strings in two-dimensional massive adjoint QCD. Similarly to confining strings in higher dimensions this theory exhibits a non-trivial -m…
Asymptotic Fragility, Near Holography and
Sergei Dubovsky, Victor Gorbenko, Mehrdad Mirbabayi
We present the exact solution for the scattering problem in the flat space Jackiw-Teitelboim (JT) gravity coupled to an arbitrary quantum field theory. JT gravity results in a grav…
Yang--Mills Glueballs as Closed Bosonic Strings
Sergei Dubovsky, Guzman Hernandez-Chifflet
We put forward the Axionic String Ansatz (ASA), which provides a unified description for the worldsheet dynamics of confining strings in pure Yang--Mills theory both in and $…
Four Loop Scattering in the Nambu-Goto Theory
Peter Conkey, Sergei Dubovsky
We initiate the study of multiloop scattering amplitudes in the Nambu-Goto theory on the worldsheet of a non-critical string. We start with a brute force calculation of two loop fo…
Towards a Theory of the QCD String
Sergei Dubovsky, Victor Gorbenko
We construct a new model of four-dimensional relativistic strings with integrable dynamics on the worldsheet. In addition to translational modes this model contains a single massle…
Looking for Integrability on the Worldsheet of Confining Strings
Patrick Cooper, Sergei Dubovsky, Victor Gorbenko +2
We study restrictions on scattering amplitudes on the worldvolume of branes and strings (such as confining flux tubes in QCD) implied by the target space Poincare symmetry. We focu…
Flux Tube Spectra from Approximate Integrability at Low Energies
Sergei Dubovsky, Raphael Flauger, Victor Gorbenko
We provide a detailed introduction to a method we recently proposed for calculating the spectrum of excitations of effective strings such as QCD flux tubes. The method relies on th…
Living with the Wrong Sign
Patrick Cooper, Sergei Dubovsky, Ali Mohsen
We describe a UV complete asymptotically fragile Lorentz-invariant theory exhibiting superluminal signal propagation. Its low energy effective action contains "wrong" sign higher d…
Natural Tuning: Towards A Proof of Concept
Sergei Dubovsky, Victor Gorbenko, Mehrdad Mirbabayi
The cosmological constant problem and the absence of new natural physics at the electroweak scale, if confirmed by the LHC, may either indicate that the nature is fine-tuned or tha…
Evidence for a new particle on the worldsheet of the QCD flux tube
Sergei Dubovsky, Raphael Flauger, Victor Gorbenko
We propose a new approach for the calculation of the spectrum of excitations of QCD flux tubes. It relies on the fact that the worldsheet theory is integrable at low energies. With…
Solving the Simplest Theory of Quantum Gravity
Sergei Dubovsky, Raphael Flauger, Victor Gorbenko
We solve what is quite likely the simplest model of quantum gravity, the worldsheet theory of an infinitely long, free bosonic string in Minkowski space. Contrary to naive expectat…
Effective String Theory Revisited
Sergei Dubovsky, Raphael Flauger, Victor Gorbenko
We revisit the effective field theory of long relativistic strings such as confining flux tubes in QCD. We derive the Polchinski-Strominger interaction by a calculation in static g…