The peaked structure of phonon density of states of a confined superfluid - a theoretical prediction, and discussions regarding its experimental probe
2000 (English)In: JOURNAL DE PHYSIQUE IV, ISSN 1155-4339, Vol. 10, no P7, 181-184 Language: English p.Article in journal (Refereed) Published
We report on an exact, first principles result which shows that when the superfluid of He-4 is spatially confined, gaps are created in the phonon excitation energy and that the phonon density of states (PDOS) presents sharp peaks positioned at the gap edg
Place, publisher, year, edition, pages
E D P SCIENCES , 2000. Vol. 10, no P7, 181-184 Language: English p.
IdentifiersURN: urn:nbn:se:uu:diva-37121OAI: oai:DiVA.org:uu-37121DiVA: diva2:65020
Addresses: Zheng-Johansson JX, Zheng Johansson Publishing, Stockholmsvagen 14, S-61137 Nykoping, Sweden. Univ Uppsala, Dept Phys, Condensed Matter Theory Grp, S-75121 Uppsala, Sweden. Linkoping Univ, Dept Phys, Theoret Phys Grp, S-58183 Linkoping, Sweden.2008-10-172008-10-172011-01-14