210 citations
- Loyola University New OrleansUS3 papers
- Lancaster UniversityGB2 papers
- University of Puerto Rico at HumacaoPR2 papers
- Ames Research CenterUS1 paper
- Arizona State UniversityUS1 paper
- California State University, San BernardinoUS1 paper
- City University of New YorkUS1 paper
- Heidelberg UniversityDE1 paper
- Hunter CollegeUS1 paper
- NASA Astrobiology InstituteUS1 paper
- National Radio Astronomy ObservatoryUS1 paper
- RWTH Aachen UniversityDE1 paper
4 papers · 1 filter
Testing the Void against Cosmological data: fitting CMB, BAO, SN and H0
Tirthabir Biswas, Alessio Notari, Wessel Valkenburg
In this paper, instead of invoking Dark Energy, we try and fit various cosmological observations with a large Gpc scale under-dense region (Void) which is modeled by a Lemaitre-Tol…
Finite Temperature Solitons in Non-Local Field Theories from p-Adic Strings
Tirthabir Biswas, Jose A. R. Cembranos, Joseph I. Kapusta
Non-local field theories which arise from p-adic string theories have vacuum soliton solutions. We find the soliton solutions at finite temperature. These solutions become importan…
Towards a Resolution of the Cosmological Singularity in Non-local Higher Derivative Theories of Gravity
Tirthabir Biswas, Tomi Koivisto, Anupam Mazumdar
One of the greatest problems of standard cosmology is the Big Bang singularity. Previously it has been shown that non-local ghostfree higher-derivative modifications of Einstein gr…
Wiggles in the cosmic microwave background radiation: echoes from non-singular cyclic-inflation
Tirthabir Biswas, Anupam Mazumdar, Arman Shafieloo
In this paper we consider a unique model of inflation where the universe undergoes rapid asymmetric oscillations, each cycle lasting millions of Planck time. Over many-many cycles…