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doctoral thesis
Osnovno stanje klastera helija i spin-polariziranog vodika
Zagreb: University of Zagreb, Faculty of Science, 2010. urn:nbn:hr:217:738606
Bešlić, Ivana
University of Zagreb
Faculty of Science
Department of Physics

Institutional repository: Repository of the Faculty of Science

Cite this document

Bešlić, I. (2010). Osnovno stanje klastera helija i spin-polariziranog vodika (Doctoral thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:738606

Bešlić, Ivana. "Osnovno stanje klastera helija i spin-polariziranog vodika." Doctoral thesis, University of Zagreb, Faculty of Science, 2010. https://urn.nsk.hr/urn:nbn:hr:217:738606

Bešlić, Ivana. "Osnovno stanje klastera helija i spin-polariziranog vodika." Doctoral thesis, University of Zagreb, Faculty of Science, 2010. https://urn.nsk.hr/urn:nbn:hr:217:738606

Bešlić, I. (2010). 'Osnovno stanje klastera helija i spin-polariziranog vodika', Doctoral thesis, University of Zagreb, Faculty of Science, accessed 23 December 2024, https://urn.nsk.hr/urn:nbn:hr:217:738606

Bešlić I. Osnovno stanje klastera helija i spin-polariziranog vodika [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Science; 2010 [cited 2024 December 23] Available at: https://urn.nsk.hr/urn:nbn:hr:217:738606

I. Bešlić, "Osnovno stanje klastera helija i spin-polariziranog vodika", Doctoral thesis, University of Zagreb, Faculty of Science, Zagreb, 2010. Available at: https://urn.nsk.hr/urn:nbn:hr:217:738606

Metadata
TitleOsnovno stanje klastera helija i spin-polariziranog vodika
Title (english)The ground-state energy of helium and spin-polarised hydrogen clusters
AuthorIvana Bešlić
MentorLeandra Vranješ Markić (mentor)
Committee memberHrvoje Buljan (predsjednik povjerenstva)
Committee memberLeandra Vranješ Markić (član povjerenstva)
Committee memberGoran Pichler (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Physics)
Zagreb
Defense date and country2010-07-15, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Universal decimal classification
(UDC)		53 - Physics
Abstract
U ovom radu proučava se metodama kvantnog Monte Carla osnovno stanje kvantnih klastera helija i spin-polariziranog vodika te tekućina spin-polariziranog tricija (T↓). Određene su energije osnovnog stanja i struktura malih miješanih klastera helija koji su građeni maksimalno od osam atoma. Predviđeno je postojanje klastera 3He4 4He3, čije postojanje nije prethodnim teorijskim istraživanjima utvrđeno. Potvrđeno je da trimer (T↓)3 predstavlja primjer Borromeanovljeva stanja. Izračunate su energije osnovnog stanja čistih klastera T↓ koji su građeni maksimalno od 320 atoma. Utvrđene su granice stabilnosti malih miješanih klastera (T↓)n(D↓)m, za m ≥ 2 i n + m ≤ 10. Posebno je pokazano da klasteri (T↓)ND↓ tvore stabilne sustave, za N ≥ 3. Također je utvrđeno da ni 60 atoma T↓ nije dovoljno za formiranje stabilnog klastera (T↓)60H↓. Iz rezultata dobivenih simuliranjem tekućine T↓ određena je jednadžba stanja, spinodalna gustoća, energija po čestici pri ravnotežnoj gustoći, jedinični radijus i površina T↓ tekućine.
Abstract (english)
The ground-state of the helium and spin-polarized hydrogen quantum clusters is investigated in this work using Quantum Monte Carlo methods, as well as the spin-polarized tritium (T↓) liquid. For small mixed helium clusters consisting of up to eight helium atoms the ground-state energy and structure have been obtained. Stability of the 3He4 4He3 cluster, which was previously considered unstable, is predicted. It is confirmed that tritium trimer (T↓)3 is an example of Borromean state. For pure large spin-polarized tritium clusters consisting of up to 320 atoms the ground-state energy is obtained. Stability limits have been investigated for small mixed (T↓)n(D↓)m clusters, for m ≥ 2 i n + m ≤ 10. Especially, it has been shown that all clusters (T↓)ND↓ are stable for N ≥ 3. It is also shown that even 60 T↓ atoms are not enough to form stable cluster (T↓)60H↓. Equation of state, spinodal density, energy per particle at the equilibrium density, unit radius and surface tension of the T↓ liquid have been determined using results obtained in the simulations of liquid phase.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:738606
Study programmeTitle: Physics
Study programme type: university
Study level: postgraduate
Academic / professional title: doktor/doktorica znanosti, područje prirodnih znanosti, polje fizika (doktor/doktorica znanosti, područje prirodnih znanosti, polje fizika)
Type of resourceText
Extent148 str.
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2017-08-24 07:01:48