id:"swepub:oai:lup.lub.lu.se:b7b50101-bb97-4669-8b49-2c51929d9e6d"
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 02562naa a2200277 4500 | |
| 001 | oai:lup.lub.lu.se:b7b50101-bb97-4669-8b49-2c51929d9e6d | |
| 003 | SwePub | |
| 008 | 160404s1985 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://lup.lub.lu.se/record/87727152 URI |
| 040 | a (SwePub)lu | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a kap2 swepub-publicationtype |
| 072 | 7 | a ref2 swepub-contenttype |
| 100 | 1 | a Almbladh, Carl-Olofu Lund University,Lunds universitet,Matematisk fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Mathematical Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH4 aut0 (Swepub:lu)teor-cal |
| 245 | 1 0 | a Density-Functional Theory and Excitation Energies |
| 264 | 1 | c 1985 |
| 520 | a During the past decade, the local-density (LD) approximation within density-functional (DF) theory has been the most important method for obtaining the electronic properties of realistic systems. The limitations of the method have to a large extent been computational in nature rather than theoretical. The conceptually simple one-particle equations arising in the method have often been too difficult to solve in systems with low symmetry such as amorphous systems or surfaces. However, due to our increased understanding of these systems the computational techniques are quickly developing, and we forsee an even greater importance of the method in the near future. The theoretical limitations of the method will then become more evident and result in an urgent need for improvements beyond the LD approximation. Such a need exists already today in many systems such as, e.g., atoms and molecules. The description of correlation effects in these systems is necessary and important and the answers provided by the LD approximations are often too poor to be of practical use. Unfortunately, for a long time, only minor theoretical advances were made since the modern version of DF theory was laid down by Hohenberg, Kohn, and Sham1,2 in the mid sixties. | |
| 650 | 7 | a NATURVETENSKAPx Fysikx Den kondenserade materiens fysik0 (SwePub)103042 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Condensed Matter Physics0 (SwePub)103042 hsv//eng |
| 700 | 1 | a von Barth, Ulf4 aut |
| 700 | 1 | a Dreizler, Reiner M4 edt |
| 700 | 1 | a da Providência, João4 edt |
| 710 | 2 | a Matematisk fysikb Fysiska institutionen4 org |
| 773 | 0 | t Density Functional Methods in Physicsg , s. 209-231q <209-231z 9781475708189z 9781475708202 |
| 856 | 4 8 | u https://lup.lub.lu.se/record/8772715 |
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