Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Teoretisk Fysik"'
Autor:
Fathe Jalali, Atabak
This thesis explores the spherically symmetric gravitational collapse of a massless scalar field in a minimally modified gravity theory denoted VCDM (V replaces $\Lambda$ in the $\Lambda$CDM abbreviation), a class of theories propagating the same deg
Externí odkaz:
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-343628
Autor:
Åkerström, Dennis
Polarisation of X-ray light is being investigated with polarimeters to extend the borders of what can be observed. Distant compact objects, such as pulsars, that are to small on the sky to be analysed with imaging can be investigated by analysing the
Externí odkaz:
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-343156
Autor:
Beiming, Christoffer
The experimentally obtained value of the critical exponent ν is presently in significant disagreement with current theoretical predictions for the λ-universality class. We suggest two novel approaches of determining the exponents ν and η by utili
Externí odkaz:
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-343619
Autor:
Beiersdorf, Emil
The discoveries in applications of chirality in various areas of science seem to never cease to emerge. Chirality, being the property that some objects are geometrically distinguishable from their mirror image, is a tiny difference of vast importance
Externí odkaz:
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-507971
Autor:
Grönroos, Jesper
We consider a simple model for invisible neutrino decay as a sub-leading effect in the standard three-flavor neutrino oscillation framework, and use the Cayley–Hamilton formalism to obtain a full set of neutrino oscillation probabilities in matter.
Externí odkaz:
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-338775
Autor:
af Malmborg, Filip
X-ray polarimetry, the study of the polarisation of X-ray light, is a powerful and rapidly developing tool for astrophysics, which promises to help answer outstanding questions about the physics of extreme objects such as pulsars, X-ray binaries and
Externí odkaz:
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-323924
Autor:
Broms, Philip
This thesis investigates the effects of power-law correlated disorder on a three-dimensional XY model and the Weinrib-Halperin disorder relevance criterion’s pre-dictive ability. Ising models are used as a map to realise disorder couplings. Simula-
Externí odkaz:
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-319562
Autor:
Honarmandi, Yashar
This report discusses higher differential forms with applications in the study of topological phenomena. The integer quantum Hall effect is first discussed, demonstrating a connection between models on a lattice and quantum field theories bridged by
Externí odkaz:
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-316808
Autor:
Sjöstedt, Wilhelm
Mapping dynamical motion to neural brain activity is one of many challenges in the field of neuroscience. Further knowledge in this area could provide useful insights in fields such as medical treatment of brain disorders. However, progress in the fi
Externí odkaz:
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-315278
Autor:
Ekman, Christopher
We consider integrable boundary states in the Heisenberg model. We begin by reviewing the algebraic Bethe Ansatz as well as integrable boundary states in spin chains. Then a new class of integrable states that was introduced last year by Caetano and
Externí odkaz:
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-314310