Hae
Aineistot 81-90 / 113
Supernovae in dense and dusty environments
(Turun yliopistoAnnales Universitatis Turkuensis A I 456, 2013-02-23)
Ring Dark Solitons in Toroidal Bose-Einstein Condensates
(Turun yliopistoAnnales Universitatis Turkuensis A I 489, 2014-06-18)
In this Thesis, we study various aspects of ring dark solitons (RDSs) in quasi-two-dimensional toroidally trapped Bose-Einstein condensates, focussing on atomic realisations thereof.
Unlike the well-known planar dark ...
Circular Spectropolarimetric Studies of DQ White Dwarfs
(Turun yliopistoAnnales Universitatis Turkuensis A I 468, 2013-09-28)
This thesis summarizes studies of a class of white dwarfs (WDs) called DQ WDs. White dwarfs are the remnants of ordinary stars like our Sun that have run out of nuclear fuel. WDs are classified according to the composition ...
Memory Effects in the Dynamics of Open Quantum Systems
(Turun yliopistoAnnales Universitatis Turkuensis A I 469, 2013-09-13)
In this Thesis various aspects of memory effects in the dynamics of open quantum systems are studied. We develop a general theoretical framework for open quantum systems beyond the Markov approximation which allows us to ...
Unusual bismuth-containing surface layers of III-V compound semiconductors
(Turun yliopistoAnnales Universitatis Turkuensis A I 463., 2013-06-15)
The understanding and engineering of bismuth (Bi) containing semiconductor surfaces
are signi cant in the development of novel semiconductor materials for electronic
and optoelectronic devices such as high-e ciency solar ...
Non-Markovian dynamics and quantum information probes
(Turun yliopistoAnnales Universitatis Turkuensis A I 464, 2013-06-14)
This Thesis discusses the phenomenology of the dynamics of open quantum
systems marked by non-Markovian memory effects. Non-Markovian
open quantum systems are the focal point of a flurry of recent research
aiming to ...
Quantum Tomography with Phase Space Measurements
(Turun yliopistoAnnales Universitatis Turkuensis A I 441, 2012-09-08)
This thesis addresses the use of covariant phase space observables in quantum
tomography. Necessary and sufficient conditions for the informational completeness
of covariant phase space observables are proved, and some ...
Studies of Solar Activity with Emphasis on Quasi-Periodic Oscillations
(Turun yliopistoAnnales Universitatis Turkuensis A I 467, 2013-09-07)
In this thesis mainly long quasi-periodic solar oscillations in various solar atmospheric structures are discussed, based on data obtained at several wavelengths, focussing, however, mainly on radio frequencies. Sunspot ...
Covariant Phase Observables in Quantum Mechanics
(Turun yliopistoAnnales Universitatis Turkuensis AI 288, 2002)
The aim of this thesis is to present a solution to the quantum phase problem of the single-mode optical field. The solution is based on the use of phase shift covariant normalized positive operator measures. These measures ...
Studies on the Multifaceted Interaction of Atoms and an Electromagnetic Field
(Turun yliopistoAnnales Universitatis Turkuensis A I 415, 2010-11-27)
In this Thesis the interaction of an electromagnetic field and matter is studied from various aspects in the general framework of cold atoms. Our subjects cover a wide spectrum of phenomena ranging from semiclassical ...