Ab initio no core shell model
BR Barrett, P Navrátil, JP Vary - Progress in Particle and Nuclear Physics, 2013 - Elsevier
Motivated by limitations of the Bloch–Horowitz–Brandow perturbative approach to nuclear
structure we have developed the non-perturbative ab initio no core shell model (NCSM) …
structure we have developed the non-perturbative ab initio no core shell model (NCSM) …
[BOOK][B] Using MPI: portable parallel programming with the message-passing interface
The Message Passing Interface (MPI) specification is widely used for solving significant
scientific and engineering problems on parallel computers. There exist more than a dozen …
scientific and engineering problems on parallel computers. There exist more than a dozen …
AB INITIO NUCLEAR STRUCTURE CALCULATIONS OF p-SHELL NUCLEI WITH JISP16
P Maris, JP Vary - International Journal of Modern Physics E, 2013 - World Scientific
We review energies and magnetic moments of p-shell nuclei obtained with the ab initio No-
Core Full Configuration (NCFC) approach using the JISP16 realistic nucleon–nucleon …
Core Full Configuration (NCFC) approach using the JISP16 realistic nucleon–nucleon …
N3LO NN interaction adjusted to light nuclei in ab exitu approach
AM Shirokov, IJ Shin, Y Kim, M Sosonkina, P Maris… - Physics Letters B, 2016 - Elsevier
We use phase-equivalent transformations to adjust off-shell properties of similarity
renormalization group evolved chiral effective field theory NN interaction (Idaho N3LO) to fit …
renormalization group evolved chiral effective field theory NN interaction (Idaho N3LO) to fit …
Collective modes in light nuclei from first principles
T Dytrych, KD Launey, JP Draayer, P Maris, JP Vary… - Physical Review Letters, 2013 - APS
Results for ab initio no-core shell model calculations in a symmetry-adapted SU (3)-based
coupling scheme demonstrate that collective modes in light nuclei emerge from first …
coupling scheme demonstrate that collective modes in light nuclei emerge from first …
Optimizing sparse matrix-multiple vectors multiplication for nuclear configuration interaction calculations
Obtaining highly accurate predictions on the properties of light atomic nuclei using the
configuration interaction (CI) approach requires computing a few extremal Eigen pairs of the …
configuration interaction (CI) approach requires computing a few extremal Eigen pairs of the …
Accelerating nuclear configuration interaction calculations through a preconditioned block iterative eigensolver
We describe a number of recently developed techniques for improving the performance of
large-scale nuclear configuration interaction calculations on high performance parallel …
large-scale nuclear configuration interaction calculations on high performance parallel …
Improving the scalability of a symmetric iterative eigensolver for multi‐core platforms
We describe an efficient and scalable symmetric iterative eigensolver developed for
distributed memory multi‐core platforms. We achieve over 80% parallel efficiency by major …
distributed memory multi‐core platforms. We achieve over 80% parallel efficiency by major …
Structure of -shell nuclei using three-nucleon interactions evolved with the similarity renormalization group
ED Jurgenson, P Maris, RJ Furnstahl, P Navrátil… - Physical Review C …, 2013 - APS
The similarity renormalization group (SRG) is used to soften interactions for ab initio nuclear
structure calculations by decoupling low-and high-energy Hamiltonian matrix elements. The …
structure calculations by decoupling low-and high-energy Hamiltonian matrix elements. The …
Exploiting geometric partitioning in task map** for parallel computers
We present a new method for map** applications' MPI tasks to cores of a parallel
computer such that communication and execution time are reduced. We consider the case of …
computer such that communication and execution time are reduced. We consider the case of …