Publications (35)
DMRG Study of Critical Behavior of the Spin-1/2 Alternating Heisenberg Chain
T. Papenbrock, T. Barnes, D. J. Dean +2
We investigate the critical behavior of the S=1/2 alternating Heisenberg chain using the density matrix renormalization group (DMRG). The ground-state energy per spin and singlet-t…
New Discrete Basis for Nuclear Structure Studies
M. V. Stoitsov, W. Nazarewicz, S. Pittel
A complete discrete set of spherical single-particle wave functions for studies of weakly-bound many-body systems is proposed. The new basis is obtained by means of a local-scale p…
Quadrupole deformations of neutron-drip-line nuclei studied within the Skyrme Hartree-Fock-Bogolyubov approach
M. V. Stoitsov, J. Dobaczewski, P. Ring +1
We introduce a local-scaling point transformation to allow for modifying the asymptotic properties of the deformed three-dimensional Cartesian harmonic oscillator wave functions. T…
Lipkin method of particle-number restoration to higher orders
X. B. Wang, J. Dobaczewski, M. Kortelainen +2
Background: On the mean-field level, pairing correlations are incorporated through the Bogoliubov-Valatin transformation, whereupon the particle degrees of freedom are replaced by…
The hole spectral function and the relationship between overlap functions, natural orbitals and the one-body density matrix in nuclei
A. N. Antonov, M. V. Stoitsov, M. K. Gaidarov +2
A method to calculate the hole spectral function in the discrete part of the spectrum is suggested within the natural orbital representation of the one-body density matrix of -n…
Nuclear Breathing Mode in the Relativistic Mean Field Theory
M. V. Stoitsov, M. L. Cescato, P. Ring +1
The breathing-mode giant monopole resonance is studied within the framework of the relativistic mean-field (RMF) theory. Using a broad range of parameter sets, an analysis of const…