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Dynamics of Nuclear Clusters in Neutron Stars
KTH, School of Engineering Sciences (SCI), Physics.
2024 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Dynamik hos nukleära kluster i neutronstjärnor (Swedish)
Abstract [en]

The inner crust of a neutron star is explored, using nuclear models andimplementing them in an open quantum system formalism. The purposeof the investigation is to extract valuable dynamics of the predictednuclear clusters that may exist in this region. We begin by setting up thenuclear models to extract the total energy per particle per system in orderto see if the results are corroborated with the works of others. Thereafter,the single-particle energies of the nuclear clusters are extracted. Theseenergies are then used in the Lindblad formalism to work out the timedependenceof the density matrix, which will allow us to extract thetime-dependence of the average energy of the system in interaction withan environment.

Abstract [sv]

Den inre skorpan hos en neutronstjärna utforskas genom att användakärnmodeller och implementera dem i en öppen kvantumsystemformalism.Syftet med undersökningen är att extrahera värdefulladynamiska egenskaper hos de förutsagda kärnkluster som kan existerai detta område. Vi börjar med att etablera kärnmodeller för att extrahera den totala energin per partikel per system för att se omresultaten överensstämmer med andras arbeten. Därefter extraherade enskilda partikelenergierna hos kärnklusterna. Dessa energieranvänds sedan i Lindblad-formalismen för att beräkna tidsberoendetav densitetsmatrisen, vilket kommer att tillåta oss att extraheratidsberoendet av systemets genomsnittliga energi i interaktion med en miljö.

Place, publisher, year, edition, pages
2024.
Series
TRITA-SCI-GRU ; 2024:271
Keywords [en]
Nuclear physics, Neutron stars, Open quantum systems, Lindblad equation.
Keywords [sv]
Kärnfysik, Neutronstjärnor, Öppna kvantsystem, Lindblad-ekvationen.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-347985OAI: oai:DiVA.org:kth-347985DiVA, id: diva2:1872800
Subject / course
Physics
Educational program
Master of Science - Engineering Physics
Supervisors
Examiners
Available from: 2024-06-19 Created: 2024-06-18 Last updated: 2024-06-19Bibliographically approved

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