21 citations · 99 across the 14 of their papers we have counts for
14 papers
On Time-Dependent Backgrounds In 1+1 Dimensional String Theory
Bruno Balthazar, Jinwei Chu, David Kutasov
In perturbative string theory, one is generally interested in asymptotic observables, such as the S-matrix in flat spacetime, and boundary correlation functions in anti-de Sitter s…
Geometry of Conformal Manifolds and the Inversion Formula
Bruno Balthazar, Clay Cordova
Families of conformal field theories are naturally endowed with a Riemannian geometry which is locally encoded by correlation functions of exactly marginal operators. We show that…
On Small Black Holes in String Theory
Bruno Balthazar, Jinwei Chu, David Kutasov
We discuss the worldsheet sigma-model whose target space is the dimensional Euclidean Schwarzschild black hole. We argue that in the limit where the Hawking temperature of th…
D-instanton Effects in Type IIB String Theory
Nathan B. Agmon, Bruno Balthazar, Minjae Cho +2
We study D-instanton contributions to supergraviton scattering amplitudes in the ten-dimensional type IIB superstring theory beyond the leading non-perturbative order. In particula…
Winding Tachyons and Stringy Black Holes
Bruno Balthazar, Jinwei Chu, David Kutasov
We study string theory on . For applications to thermodynamics, the circumference of the is the inverse temperature, . We show th…
The S-Matrix of 2D Type 0B String Theory Part 2: D-Instanton Effects
Bruno Balthazar, Victor A. Rodriguez, Xi Yin
We study the effect of D-instantons on closed string scattering amplitudes in the two-dimensional type 0B string theory from the worldsheet perspective. We find that the contributi…
The S-Matrix of 2D Type 0B String Theory Part 1: Perturbation Theory Revisited
Bruno Balthazar, Victor A. Rodriguez, Xi Yin
We study the perturbative S-matrix of closed strings in the two-dimensional type 0B string theory from the worldsheet perspective, by directly integrating correlation functions of…
Asymptotically Free AdS3/CFT2
Bruno Balthazar, Amit Giveon, David Kutasov +1
We propose a new duality, in which the bulk string theory has a target spacetime times a squashed three-sphere , and the dual is a symmetri…
Multi-Instanton Calculus in c = 1 String Theory
Bruno Balthazar, Victor A. Rodriguez, Xi Yin
We formulate a strategy for computing the complete set of non-perturbative corrections to closed string scattering in string theory from the worldsheet perspective. This requ…
ZZ Instantons and the Non-Perturbative Dual of c = 1 String Theory
Bruno Balthazar, Victor A. Rodriguez, Xi Yin
We study the effect of ZZ instantons in c = 1 string theory, and demonstrate that they give rise to non-perturbative corrections to scattering amplitudes that do not saturate unita…
Long String Scattering in c = 1 String Theory
Bruno Balthazar, Victor A. Rodriguez, Xi Yin
We study the scattering of long strings in c = 1 string theory, both in the worldsheet description and in the non-singlet sector of the dual matrix quantum mechanics. From the worl…
The c=1 String Theory S-Matrix Revisited
Bruno Balthazar, Victor A. Rodriguez, Xi Yin
We revisit the perturbative S-matrix of c=1 string theory from the worldsheet perspective. We clarify the origin of the leg pole factors, the non-analyticity of the string amplitud…
Hamiltonian Truncation Study of Supersymmetric Quantum Mechanics: S-Matrix and Metastable States
Bruno Balthazar, Victor A. Rodriguez, Xi Yin
We implement the Rayleigh-Ritz method in supersymmetric quantum mechanics with flat directions, and extract the S-matrix and metastable resonances. The effectiveness of the method…
Accelerated expansion in the effective field theory of a radiation dominated universe
Bruno Balthazar, Pedro G. Ferreira
We construct the effective field theory of a perfect fluid in the early universe. Focusing on the case where the fluid has the equation of state of radiation, we show that it may l…