Osnovno stanje neuređenog sustava

master's thesis

• Title (english): Ground state of a disordered system
• Author: Luka Sinković
• Mentor: Ivan Balog (mentor)
• Mentor: Maja Planinić (mentor)
• Committee member: Maja Planinić (predsjednik povjerenstva)
• Committee member: Ivan Balog (član povjerenstva)
• Committee member: Danko Radić (član povjerenstva)
• Committee member: Ivo Batistić (član povjerenstva)
• Committee member: Denis Sunko (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Physics); Zagreb
• Defense date and country: 2018-02-23, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract

Numeričkim određivanjem osnovnog stanja sustava proučavana je kritičnost u 1d Isingovu modelu s nasumičnim poljem i dalekodosežnim interakcijama, što nam je omogućilo da preko skaliranja veličina u konačnom sustavu odredimo kritične eksponente. Promatrali smo spojene i odspojene verzije susceptibilnosti i kumulante magnetizacije i energije. Prikazana je evaluacija rezultata, a metoda je uspoređena s drugim analitičkim rezultatima.

Abstract (english)

We have studied the criticality in 1d long-range random field Ising model by using numerical ground state determination in a finite system which allows us to extract critical exponents by finite size scaling. We have studied connected and disconnected versions of susceptibility and a magnetisation-energy cumulant. The evaluation of results is presented, as well as comparison with other analytical results.

• Keywords: osnovno stanje; Isingov model u nasumičnom polju; dalekodosežne interakcije; skaliranje u konačnom sustavu; kritični eksponenti
• Keywords (english): ground state; random field Ising model; long-range interactions; finite size scaling; critical exponents
• Language: croatian
• URN:NBN: urn:nbn:hr:217:105939
• Study programme: Title: Physics; specializations in: Education; Course: Education; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: magistar/magistra edukacije fizike (magistar/magistra edukacije fizike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2018-03-15 16:05:48