12 citations · 49 across the 10 of their papers we have counts for
10 papers
Wire width and density dependence of the crossover in the peak of the static structure factor from in one-dimensional paramagnetic electron gases
Ankush Girdhar, Vinod Ashokan, Rajesh O. Sharma +2
We use the variational quantum Monte Carlo (VMC) method to study the wire width () and electron density () dependences of the ground-state properties of quasi-one-di…
Electron correlation and confinement effects in quasi-one-dimensional quantum wires at high density
Ankush Girdhar, Vinod Ashokan, N. D. Drummond +2
We study the ground-state properties of ferromagnetic quasi-one-dimensional quantum wires using the quantum Monte Carlo (QMC) method for various wire widths and density paramet…
Ground-state properties of electron-electron biwire systems
Rajesh O. Sharma, N. D. Drummond, Vinod Ashokan +2
The correlation between electrons in different quantum wires is expected to affect the electronic properties of quantum electron-electron biwire systems. Here, we use the variation…
One-dimensional electron fluid at high density
Vinod Ashokan, N. D. Drummond, K. N. Pathak
We calculate the ground-state energy, pair correlation function, static structure factor, and momentum density of the one-dimensional electron fluid at high density using variation…
Conditions where RPA becomes exact in the high-density limit
Klaus Morawetz, Vinod Ashokan, Renu Bala +1
It is shown that in -dimensional systems, the vertex corrections beyond the random phase approximation (RPA) or GW approximation scales with the power of the Fermi momen…
Analytical pair correlations in ideal quantum gases: Temperature-dependent bunching and antibunching
J. Bosse, K. N. Pathak, G. S. Singh
The fluctuation-dissipation theorem together with the exact density response spectrum for ideal quantum gases has been utilized to yield a new expression for the static structure f…
Dynamic Density Response of Trapped Interacting Quantum Gases
Renu Bala, J. Bosse, K. N. Pathak
An expression for the dynamic density response function has been obtained for an interacting quantum gas in Random Phase Approximation (RPA) including first order self and exchange…
Density excitations of a harmonically trapped ideal gas
Jai Carol Cruz, C. N. Kumar, K. N. Pathak +1
The dynamic structure factor of a harmonically trapped Bose gas has been calculated well above the Bose-Einstein condensation temperature by treating the gas cloud as a canonical e…
Dynamics of Uniform Quantum Gases, II: Magnetic Susceptibility
J. Bosse, K. N. Pathak, G. S. Singh
A general expression for temperature-dependent magnetic susceptibility of quantum gases composed of particles possessing both charge and spin degrees of freedom has been obtained w…
Dynamics of Uniform Quantum Gases, I: Density and Current Correlations
J. Bosse, K. N. Pathak, G. S. Singh
A unified approach valid for any wavenumber, frequency, and temperature is presented for uniform ideal quantum gases allowing for a comprehensive study of number density and partic…