68 citations · 339 across the 17 of their papers we have counts for
17 papers
Estimation of imprints of the bounce in loop quantum cosmology on the bispectra of cosmic microwave background
Roshna K, V. Sreenath
Primordial non-Gaussianity has set strong constraints on models of the early universe. Studies have shown that Loop Quantum Cosmology (LQC), which is an attempt to extend inflation…
Anomalies in the Cosmic Microwave Background and their Non-Gaussian Origin in Loop Quantum Cosmology
Ivan Agullo, Dimitrios Kranas, V. Sreenath
Anomalies in the cosmic microwave background (CMB) refer to features that have been observed, mostly at large angular scales, and which show some tension with the statistical predi…
Cosmic tango between the very small and the very large: Addressing CMB anomalies through Loop Quantum Cosmology
Abhay Ashtekar, Brajesh Gupt, V. Sreenath
While the standard, six-parameter, spatially flat CDM model has been highly successful, certain anomalies in the cosmic microwave background bring out a tension between this mod…
Large scale anomalies in the CMB and non-Gaussianity in bouncing cosmologies
Ivan Agullo, Dimitrios Kranas, V. Sreenath
We propose that several of the anomalies that have been observed at large angular scales in the CMB have a common origin in a cosmic bounce that took place before the inflationary…
Observational consequences of Bianchi I spacetimes in loop quantum cosmology
Ivan Agullo, Javier Olmedo, V. Sreenath
Anisotropies generically dominate the earliest stages of expansion of a homogeneous universe. They are particularly relevant in bouncing models, since shears grow in the contractin…
Hamiltonian theory of classical and quantum gauge invariant perturbations in Bianchi I spacetimes
Ivan Agullo, Javier Olmedo, V. Sreenath
We derive a Hamiltonian formulation of the theory of gauge invariant, linear perturbations in anisotropic Bianchi I spacetimes, and describe how to quantize this system. The matter…