36 citations · 205 across the 19 of their papers we have counts for
20 papers
Pressure in Wilsonian effective field theory
Vinícius Bernardes, Atakan Hilmi Fırat
We study the exponential rolling tachyon solution in Wilsonian effective field theory as a model for rolling tachyons in open string field theory. Although this solution exhibits r…
D-brane tension as central charge
Vinícius Bernardes, Theodore Erler, Atakan Hilmi Fırat
Using Hamiltonian methods in open bosonic string field theory, we derive the mass of a D0-brane as the central charge of the spontaneously broken Poincaré algebra in 26 dimensions.…
Poisson bracket and algebras
Vinícius Bernardes, Theodore Erler, Atakan Hilmi Fırat +1
We describe the Poisson bracket of a Lagrangian field theory expressed in the framework of algebras. If the symplectic structure on phase space is defined following rece…
Conserved charges and algebras
Vinícius Bernardes, Theodore Erler, Atakan Hilmi Fırat
We give a formula for conserved charges in an arbitrary Lagrangian field theory expressed in the framework of algebras. The formula is determined by the theory's $L_\inf…
Symplectic structure in open string field theory III: Electric field
Vinícius Bernardes, Theodore Erler, Atakan Hilmi Fırat
We use a new formula for the symplectic structure on the phase space of open string field theory to evaluate the energy of a D-brane carrying a constant electric flux. This is show…
Symplectic structure in open string field theory II: Sliding lump
Vinícius Bernardes, Theodore Erler, Atakan Hilmi Fırat
We use a new formula for symplectic structure to compute the momentum of an analytic lump solution moving at constant velocity in Witten's open string field theory. The computation…
Symplectic structure in open string field theory I: Rolling tachyons
Vinícius Bernardes, Theodore Erler, Atakan Hilmi Fırat
We discuss a new formula for the symplectic structure on the phase space of open string field theory. Revisiting the setup of Cho, Mazel, and Yin, we use the formula to compute the…
Covariant phase space and algebras
Vinícius Bernardes, Theodore Erler, Atakan Hilmi Fırat
We propose a symplectic structure for the phase space of a generic Lagrangian field theory expressed in the framework of algebras. The symplectic structure does not requ…
Boundary terms in string field theory
Atakan Hilmi Fırat, Raji Ashenafi Mamade
We supplement the string field theory action with boundary terms to make its variational principle well-posed. Central to our considerations is the violation of the stress-energy t…
Topological recursion for hyperbolic string field theory
Atakan Hilmi Fırat, Nico Valdes-Meller
We derive an analog of Mirzakhani's recursion relation for hyperbolic string vertices and investigate its implications for closed string field theory. Central to our construction a…
perspective to Sen's formalism
Atakan Hilmi Fırat
Sen's formalism is a mechanism for eliminating constraints on the dynamical fields that are imposed independently from equations of motion by employing spurious free fields. In thi…
Wilsonian effective potentials and closed string field theory
Theodore Erler, Atakan Hilmi Fırat
We investigate Wilsonian effective field theory as a model for the construction of the tachyon potential and nonperturbative vacua in closed string field theory. In a number of cas…
String vertices for the large limit
Atakan Hilmi Fırat
String vertices of open-closed string field theory on an arbitrary closed string background with identical D-branes are investigated when is large. We identify the relevant…
Open string stub as an auxiliary string field
Harold Erbin, Atakan Hilmi Fırat
Witten's open string field theory with a generalized version of stubs is reformulated as a cubic string field theory using an auxiliary string field. The gauge symmetries and equat…
Hyperbolic string tadpole
Atakan Hilmi Fırat
Hyperbolic geometry on the one-bordered torus is numerically uniformized using Liouville theory. This geometry is relevant for the hyperbolic string tadpole vertex describing the o…
Bootstrapping closed string field theory
Atakan Hilmi Fırat
The determination of the string vertices of closed string field theory is shown to be a conformal field theory problem solvable by combining insights from Liouville theory, hyperbo…
Characterizing 4-string contact interaction using machine learning
Harold Erbin, Atakan Hilmi Fırat
The geometry of 4-string contact interaction of closed string field theory is characterized using machine learning. We obtain Strebel quadratic differentials on 4-punctured spheres…
D-instanton Induced Superpotential
Sergei Alexandrov, Atakan Hilmi Fırat, Manki Kim +2
We use string field theory to fix the normalization of the D-instanton corrections to the superpotential involving the moduli fields of type II string theory compactified on an ori…
Initial value problem in string-inspired nonlocal field theory
Harold Erbin, Atakan Hilmi Fırat, Barton Zwiebach
We consider a nonlocal scalar field theory inspired by the tachyon action in open string field theory. The Lorentz-covariant action is characterized by a parameter that quant…
Hyperbolic three-string vertex
Atakan Hilmi Fırat
We begin developing tools to compute off-shell string amplitudes with the recently proposed hyperbolic string vertices of Costello and Zwiebach. Exploiting the relation between a b…