Displaced-Maxwellian transport calculation for InP and InAs0.2P0.8

We study recently proposed ultraviolet and infrared momentum regulators of the model spaces formed by construction of a variational trial wavefunction which uses a complete set of many-body basis states based upon three-dimensional harmonic oscillator (HO) functions. These model spaces are defined by a truncation of the expansion characterized by a counting number (N ) and by the intrinsic scale ( ω) of the HO basis; in short by the ordered pair (N , ω). In this study we choose for N the truncation parameter N max related to the maximum number of oscillator quanta, above the minimum configuration, kept in the model space. The ultraviolet (uv) momentum cutoff of the continuum is readily mapped onto a defined uv cutoff in this finite model space, but there are two proposed definitions of the infrared (ir) momentum cutoff inherent in a finite-dimensional HO basis.One definition is based upon the lowest momentum difference given by ω itself and the other upon the infrared momentum which corresponds to the maximal radial extent used to encompass the many-body system in coordinate space. Extending both the uv cutoff to infinity and the ir cutoff to zero is prescribed for a converged calculation. We calculate the ground state energy of light nuclei with "bare" and "soft" N N interactions. By doing so, we investigate the behaviors of the uv and ir regulators of model spaces used to describe 2 H, 3 H, 4 He and 6 He with N N potentials Idaho N 3 LO and JISP16. We establish practical procedures which utilize these regulators to obtain the extrapolated result from sequences of calculations with model spaces characterized by (N , ω).

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Displaced-Maxwellian transport calculation for InP and InAs0.2P0.8

Cited by 3 publications

References 8 publications

Study of the Bound States of Few-Nucleon Systems with Correlated Basis Functions

Study of the Bound States of Few-Nucleon Systems with Correlated Basis Functions

Microwave Measurement of the Velocity-Field Characteristic of n-Type InP

Convergence properties ofab initiocalculations of light nuclei in a harmonic oscillator basis

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