2 citations · 5 across the 5 of their papers we have counts for
5 papers
Gravitational waves from super-Hubble bubbles
Pulkit S. Ghoderao, Arttu Rajantie, Danièle Steer
We consider a cosmological first-order phase transition in which bubbles of true vacuum nucleate during inflation but do not collide and percolate until the Universe has entered th…
Curvature perturbations from vacuum transition during inflation
Björn Garbrecht, Pulkit S. Ghoderao, Arttu Rajantie
We demonstrate that in the presence of a light scalar spectator field, vacuum transitions taking place during inflation can produce large, potentially detectable non-Gaussian signa…
Curvature perturbations from preheating with scale dependence
Pulkit S. Ghoderao, Arttu Rajantie
We extend the formalism to calculate non-Gaussianity of primordial curvature perturbations produced by preheating in the presence of a light scalar field. The calculation is carrie…
Are we living in Non-Commutative Space? -- revisiting the classic hydrogen atom system
Pulkit S. Ghoderao, P. Ramadevi
Our familiar Newton's laws allow determination of both position and velocity of any object precisely. Early nineteenth century saw the birth of quantum mechanics where all measurem…
Probing the scale of non-commutativity of space
Pulkit S. Ghoderao, Rajiv V. Gavai, P. Ramadevi
Examining quantum electrodynamics in non-commutative (NC) spaces along with composite operators in these spaces, we show that i) any charge g for a fermion matter field is allowed…