HOTB update: Parallel code for calculation of three- and four-particle harmonic oscillator transformation brackets and their matrices using OpenMP

Germanas, Darius; Stepšys, Augustinas; Mickevičius, Saulius; Kalinauskas, R.K.

doi:10.1016/j.cpc.2017.01.028

Cited by 2 publications

(10 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contrast to our case, in the case of Ref. [22] the running times per bracket sharply increase with (N q ) max . Comparing the running times one should take into account that, contrary to the present single-processor calculation with the computer described above, the calculation in Ref.…”

Section: Table IIIcontrasting

confidence: 99%

“…At this restriction, the computation as real numbers of all the factorials and double factorials entering Eqs. ( 19), (22), and ( 23), apart from the 3j symbols in Eq. ( 22), does not lead to overflows/underflows.…”

Section: The Programsmentioning

confidence: 99%

“…Programs to calculate oscillator brackets have been published in Refs. [8,11,[17][18][19][20][21][22]. Of them, the programs [8,11,22] are written in a contemporary programming language.…”

Section: Accuracies and Running Timesmentioning

confidence: 99%

“…[8,11,[17][18][19][20][21][22]. Of them, the programs [8,11,22] are written in a contemporary programming language. They are based on an explicit expression [23] for the brackets.…”

Section: Accuracies and Running Timesmentioning

confidence: 99%

“…In the last column the corresponding running times of Ref. [22], deduced from the table there, are compared with the present running times. In contrast to our case, in the case of Ref.…”

Section: Table IIImentioning

confidence: 99%

See 4 more Smart Citations

Computing the coefficients of transformations between oscillator states

Efros

2021

Preprint

View full text Add to dashboard Cite

A program is created to compute recursively the Moshinsky brackets. It is very fast and provides highly accurate results. In the case of the double precision computations with a single-processor consumer notebook, the computing time per bracket at any not small oscillator excitations is on the scale of 10 −8 s and the accuracy is very good for the total number of quanta up to 80. The program is easy to handle.

show abstract

Section: Table IIIcontrasting

confidence: 99%

Section: The Programsmentioning

confidence: 99%

“…Programs to calculate oscillator brackets have been published in Refs. [8,11,[17][18][19][20][21][22]. Of them, the programs [8,11,22] are written in a contemporary programming language.…”

Section: Accuracies and Running Timesmentioning

confidence: 99%

“…[8,11,[17][18][19][20][21][22]. Of them, the programs [8,11,22] are written in a contemporary programming language. They are based on an explicit expression [23] for the brackets.…”

Section: Accuracies and Running Timesmentioning

confidence: 99%

“…In the last column the corresponding running times of Ref. [22], deduced from the table there, are compared with the present running times. In contrast to our case, in the case of Ref.…”

Section: Table IIImentioning

confidence: 99%

See 3 more Smart Citations