348 citations · 761 across the 16 of their papers we have counts for
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Constraints on the Neutrino Parameters from the `Rise-up' in the Boron Neutrino Spectrum at Low Energies
S. Dev, Sanjeev Kumar
The rise-up in boron neutrino spectrum at low energies has been studied within the framework of `pure LMA' scenario. Indirect bounds on the spectral `upturn' have been obtained fro…
The Travelling Cluster Approximation for Strong Correlation Models of Lattice Fermions Coupled to Classical Fields
Sanjeev Kumar, Pinaki Majumdar
We suggest and implement a new Monte Carlo strategy for correlated models involving fermions strongly coupled to classical degrees of freedom, with accurate handling of quenched di…
Insulator-Metal Phase Diagram of the Optimally Doped Manganites from the Disordered Holstein-Double Exchange Model
Sanjeev Kumar, Pinaki Majumdar
We study the Holstein-Double Exchange model in three dimensions in the presence of substitutional disorder. Using a new Monte Carlo technique we establish the phase diagram of the…
Singular Effect of Disorder on Electronic Transport in Strong Coupling Electron-Phonon Systems
Sanjeev Kumar, Pinaki Majumdar
We solve the disordered Holstein model in three dimensions considering the phonon variables to be classical. After mapping out the phases of the `clean' strong coupling problem, we…
The Many Electron Ground State of the Adiabatic Holstein Model in Two and Three Dimensions
B. Poornachandra Sekhar, Sanjeev Kumar, Pinaki Majumdar
We present the complete ground state phase diagram of the Holstein model in two and three dimension considering the phonon variables to be classical. We first establish the overall…