Aineistot 11-20 / 94
Investigation of properties of solar energetic particles and geomagnetic storms related to coronal mass ejections
(Turun yliopisto, 2019-12-19)
Solar energetic particles (SEPs) and geomagnetic storms related to coronal mass ejections (CMEs) are a major research topic in solar-terrestrial and geospace physics. Solar energetic particles and coronal mass ejections ...
Controlling dynamics of open quantum systems
(Turun yliopisto, 2019-10-05)
Quantum mechanics has both deepened our understanding of the physical reality and allowed development of quantum technologies beating their classical counterparts in efficiency, security, and sensitivity. As a major downside, ...
Super-critical accretion onto black holes and neutron stars
(Turun yliopisto, 2019-09-27)
Accretion is one of the most important processes in astrophysics. Accretion discs are observed in a very large wavelength range, from infrared to X-rays, and in a very large range of scales: from several kilometers (accretion ...
Bl lac objects - view from the highest energies
(Turun yliopisto, 2020-06-16)
Relativistic jets launched by a super-massive black holes are among the most extreme particle accelerators in the Universe. BL Lac objects host a relativistic jet that points very close to our line of sight. They are the ...
The laser quenching technique for studying the magneto-thermal instability in high critical current density superconducting strands for accelerator magnets
(Turun yliopistoAnnales Universitatis Turkuensis A I 444, 2012-09-22)
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 ...
Research and development of III-V semiconductor surfaces for improved device interfaces
(Turun yliopistoAnnales Universitatis Turkuensis A I 473, 2013-10-19)
This thesis is devoted to understanding and improving technologically important III-V compound semiconductor (e.g. GaAs, InAs, and InSb) surfaces and interfaces for devices. The surfaces and interfaces of crystalline ...
Beyond the Cosmological Principle
(Turun yliopistoAnnales Universitatis Turkuensis A I 545, 2016-09-14)
Simplifying the Einstein ﬁeld equation by assuming the cosmological principle yields a set of diﬀerential equations which governs the dynamics of the universe as described in the cosmological standard model. The cosmological ...
Evolution and Stellar Content of AGN Host Galaxies
(Turun yliopistoAnnales Universitatis Turkuensis A I 394, 2009-05-09)
In this dissertation, Active Galactic Nuclei (AGN) and their host galaxies are discussed. Together with transitional events, such as supernovae and gamma-ray bursts, AGN are the most energetic phenomena in the Universe. ...
Spinor Bose-Einstein Condensates and Topological Defects
(Turun yliopistoAnnales Universitatis Turkuensis AI 378, 2007-12-01)
This thesis concentrates on the topological defects of spin-1 and spin-2 Bose-Einstein condensates, the ground states of spin-3 condensates, and the inert states of spinor condensates with arbitrary spin. Our work is based ...