11 citations · 55 across the 8 of their papers we have counts for
8 papers
Implementing a microphysics model in hydrodynamic simulations to study the initial plasma formation in dielectric ablator materials for direct-drive implosions
Arnab Kar, S. X. Hu, G. Duchateau +2
A microphysics model to describe the photoionization and impact ionization processes in dielectric ablator materials like plastic has been implemented into the one-dimensional hydr…
Simulated Refraction-Enhanced X-Ray Radiography of Laser-Driven Shocks
Arnab Kar, T. R. Boehly, P. B. Radha +9
Refraction-enhanced x-ray radiography (REXR) is used to infer shock-wave positions of more than one shock wave, launched by a multiple-picket pulse in a planar plastic foil. This i…
Quantifying fermionic decoherence in many-body systems
Arnab Kar, Ignacio Franco
Practical measures of electronic decoherence, called distilled purities, that are applicable to many-body systems are introduced. While usual measures of electronic decoherence suc…
Understanding the fundamental connection between electronic correlation and decoherence
Arnab Kar, Liping Chen, Ignacio Franco
We introduce a theory that exposes the fundamental and previously overlooked connection between the correlation among electrons and the degree of quantum coherence of electronic st…
A Hierarchical Finite Element Method for Quantum Field Theory
Arnab Kar, Fred Moolekamp, S. G. Rajeev
We study a model of scalar quantum field theory in which space-time is a discrete set of points obtained by repeatedly subdividing a triangle into three triangles at the centroid.…
A Non-Riemannian Metric on Space-Time Emergent From Scalar Quantum Field Theory
Arnab Kar, S. G. Rajeev
We show that the two-point function σ(x,x')=\sqrt{<[ϕ(x)-ϕ(x')]^{2}>} of a scalar quantum field theory is a metric (i.e., a symmetric positive function satisfying the triangle ineq…