17 citations · 47 across the 9 of their papers we have counts for
9 papers
Equivalence of the wave function of the universe in the Einstein and Jordan frames
Vikramaditya Mondal, Sumanta Chakraborty, Soumitra SenGupta
We investigate the question of equivalence between the Einstein and Jordan frames for generic scalar-tensor and gravity theories in the context of minisuperspace quantum cos…
Anisotropic quantum universe in Hořava-Lifshitz gravity
Vikramaditya Mondal, Shinji Mukohyama
We quantize a Bianchi IX universe in Hořava-Lifshitz theory. For analytical tractability, we consider the small anisotropy limit of the Bianchi IX, that is, a perturbative anisotro…
Exact path integrals on half-line in quantum cosmology with a fluid clock and aspects of operator ordering ambiguity
Vikramaditya Mondal, Harkirat Singh Sahota, Kinjalk Lochan
We perform half-line path integral quantization of flat, homogeneous cosmological models containing a perfect fluid acting as an internal clock, in a dimensi…
Lorentzian quantum cosmology with torsion
Vikramaditya Mondal, Sumanta Chakraborty
We evaluate the Lorentzian gravitational path integral in the presence of non-vanishing torsion with the application of the Picard-Lefschetz theory for minisuperspaces correspondin…
Wave function of the universe in the presence of trans-Planckian censorship
Vikramaditya Mondal
The wave function for a closed de Sitter universe has been computed, demanding consistency with the recently proposed Trans-Planckian Censorship Conjecture (TCC). We extend the Ein…
Ultraviolet dimensional reduction of spacetime with zero-point length
Vikramaditya Mondal
Among the many disparate approaches towards quantum gravity, the reduction of spacetime dimension in the ultraviolet regime is expected to be a common thread. The dimensionality of…
Bouncing with shear: Implications from quantum cosmology
Karthik Rajeev, Vikramaditya Mondal, Sumanta Chakraborty
We consider the introduction of anisotropy in a class of bouncing models of cosmology. The presence of anisotropy often spells doom on bouncing models, since the energy density due…
Einstein's special relativity from a space-time duality principle
Vikramaditya Mondal
Einstein based his special theory of relativity on two postulates: (a) physical laws appear the same in all inertial frames, and (b) the speed of light in vacuum is an observer-ind…
No-boundary Wave Function, Wheeler-DeWitt Equation and Path Integral Analysis of the Bouncing `Quantum' Cosmology
Karthik Rajeev, Vikramaditya Mondal, Sumanta Chakraborty
Bouncing models are alternatives to inflationary cosmology that replace the initial Big-Bang singularity by a `bouncing' phase. A deeper understanding of the initial conditions of…