qrpa method within the mean-field+lanczos approach
DESCRIPTION
QRPA method within the mean-field+Lanczos approach. The FIDIPRO team University of Jyväskylä. FIDIPRO-UNEDF collaboration meeting on nuclear energy-density-functional methods Jyväskylä, October 9-10, 2008. Motivation & Background. - PowerPoint PPT PresentationTRANSCRIPT
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Jacek Dobaczewski
QRPA method within themean-field+Lanczos approach
The FIDIPRO teamUniversity of Jyväskylä
FIDIPRO-UNEDF collaboration meeting onnuclear energy-density-functional methods
Jyväskylä, October 9-10, 2008
![Page 2: QRPA method within the mean-field+Lanczos approach](https://reader035.vdocuments.mx/reader035/viewer/2022062408/56814488550346895db11e01/html5/thumbnails/2.jpg)
Jacek Dobaczewski
Motivation & Background1. Standard RPA and QRP calculations in deformed
nuclei are very difficult because of exploding size of two-(quasi)particle space:• matrices of size N2N2 must be diagonalized,
for the single-particle space of N~100 (axial symmetry) or N~1000 (triaxial symmetry) .
• calculation of the two-body matrix elements is the bottleneck.
2. RPA and QRPA methods are based on the time-dependent EDF (DFT), which is believed to be well founded for calculation of excited states.
3. No extension to beyond-mean field is necessary.4. The same functional defines RPA-QRPA and
ground states.5. Beta decay rates known in many (deformed)
nuclei:• invaluable source of data for adjusting
functionals• in strong demand from experimentalists• crucial for extrapolations and astrophysics
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Jacek Dobaczewski
RPA method
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Jacek Dobaczewski
New approach
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Jacek Dobaczewski
Discussion points
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Jacek Dobaczewski
Discussion points
![Page 7: QRPA method within the mean-field+Lanczos approach](https://reader035.vdocuments.mx/reader035/viewer/2022062408/56814488550346895db11e01/html5/thumbnails/7.jpg)
Jacek Dobaczewski
Stay tuned