42 citations · 102 across the 12 of their papers we have counts for
13 papers
Additional constraints for the tensor bootstrap
Samuel Laliberte, Reiko Toriumi
Recently, new positivity constraints were suggested to constrain arbitrary unitary tensor integrals. In the present work, we explore two variants of these positivity constraints: o…
Finite- Bootstrap Constraints in Matrix and Tensor Models
Samuel Laliberte, Reiko Toriumi
We explore how matrix bootstrap techniques can be used to constrain matrix and tensor models at finite , where is the dimension of the matrix/tensor, taking a Gaussian model…
Bootstrapping supersymmetric (matrix) quantum mechanics
Samuel Laliberte, Brian McPeak
We apply the quantum-mechanics bootstrap to supersymmetric quantum mechanics (SUSY QM) and to its matrix relative, the Marinari-Parisi model, which is conjectured to describe the w…
IKKT thermodynamics and early universe cosmology
Samuel Laliberte, Suddhasattwa Brahma
Matrix theory is a proposed non-perturbative definition of superstring theory in which space is emergent. Recently, it was shown that space-time can emerge with a scale-invariant s…
TCC bounds on the static patch of de Sitter space
Matteo Blamart, Samuel Laliberte, Robert Brandenberger
Recently, Pei-Ming Ho and Hikaru Kawai have argued that treating particles as wave packets can lead to a shutdown of Hawking radiation after a scrambling time in the case of Schwar…
BFSS Matrix Model Cosmology: Progress and Challenges
Suddhasattwa Brahma, Robert Brandenberger, Samuel Laliberte
We review a proposal to obtain an emergent metric space-time and an emergent early universe cosmology from the BFSS matrix model. Some challenges and directions for future research…
Spontaneous symmetry breaking in the BFSS model: Analytical results using the Gaussian expansion method
Suddhasattwa Brahma, Robert Brandenberger, Samuel Laliberte
We apply the Gaussian expansion method to the BFSS matrix model in the high temperature limit. When the (Euclidean) BFSS action is expanded about a Gaussian ansatz, it is shown tha…
Emergent Metric Space-Time from Matrix Theory
Suddhasattwa Brahma, Robert Brandenberger, Samuel Laliberte
The IKKT matrix model yields an emergent space-time. We further develop these ideas and give a proposal for an emergent metric. Based on previous numerical studies of this model, w…
Emergent Early Universe Cosmology from BFSS Matrix Theory
Suddhasattwa Brahma, Robert Brandenberger, Samuel Laliberte
The BFSS matrix model is a suggested non-perturbative definition of string theory. Starting from a thermal state of this matrix model, we show how space and time can emerge dynamic…
Emergent Cosmology from Matrix Theory
Suddhasattwa Brahma, Robert Brandenberger, Samuel Laliberte
Matrix theory is a proposed non-perturbative definition of superstring theory in which space is emergent. We begin a study of cosmology in the context of matrix theory. Specificall…
String Gases and the Swampland
Samuel Laliberte, Robert Brandenberger
In this paper, we study some aspects of moduli stabilization using string gases in the context of the Swampland. In the framework which we derive, the matter Lagrangian for string…
Ionization from Cosmic Strings at Cosmic Dawn
Samuel Laliberte, Robert Brandenberger
Cosmic strings produce charged particles which, by emitting electromagnetic radiation, partially ionize neutral hydrogen during the dark ages. Corrections to the ionization fractio…
Cosmic String Wake Detection using 3D Ridgelet Transformations
Samuel Laliberte, Robert Brandenberger, Disrael Camargo Neves da Cunha
Three-dimensional ridgelet statistics are used to search for the signals of cosmic string wakes in the distribution of dark matter. We compare N-body simulations of the dark matter…