Simulation of indivisible qubit channels in collision models

A sequence of controlled collisions between a quantum system and its environment (composed of a set of quantum objects) naturally simulates (with arbitrary precision) any Markovian quantum dynamics of the system under consideration. In this paper we propose and study the problem of simulation of an {\it arbitrary} quantum channel via collision models. We show that a correlated environment is capable to simulate {\it non-Markovian} evolutions leading to any indivisible qubit channel. In particular, we derive the corresponding master equation generating a continuous time non-Markovian dynamics implementing the universal NOT gate being an example of the most non-Markovian quantum channels.Comment: 6 pages, 2 figures, submitted to JP

Update of the Investment Portfolio of the Hedge Fund

Bakalářská práce se zaměřuje na rozšíření investičního portfolia fondu kvalifikovaných investorů. Teoretická část specifikuje pojmy a právní úpravu pro fungování fondů kvalifikovaných investorů v České republice a teoretické vymezení finanční analýzy. V praktické části je vymezen statut fondu, strategie fondu a požadavky managementu. Podle těchto kritérií jsou vybrány společnosti, které jsou podrobeny finanční analýze, mezipodnikovému srovnání a bankrotnímu modelu. Ze zjištěných výsledků jsou vyvozeny závěry a vlastní doporučení pro rozšíření investičního portfolia fondu.The bachelor´s thesis focuses on the expansion of the investment portfolio of a hedge fund. The theoretical part specifies the concepts and legal regulation for the functioning of a hedge funds in the Czech Republic and the theoretical definition of financial analysis. The practical part defines the fund statute, fund strategy and management requirements. According to these criteria, companies are selected to be subjected to financial analysis, inter-company comparison and bankruptcy model. From the results, conclusions are drawn and custom recommendations are made to expand the fund's investment portfolio.

Update of the Investment Portfolio of the Hedge Fund

The bachelor´s thesis focuses on the expansion of the investment portfolio of a hedge fund. The theoretical part specifies the concepts and legal regulation for the functioning of a hedge funds in the Czech Republic and the theoretical definition of financial analysis. The practical part defines the fund statute, fund strategy and management requirements. According to these criteria, companies are selected to be subjected to financial analysis, inter-company comparison and bankruptcy model. From the results, conclusions are drawn and custom recommendations are made to expand the fund's investment portfolio

Multiproxy constraints on Central Paratethys Sea and Lake Pannon paleoclimate and paleoenvironment transitions during the Middle-Late Miocene (Danube Basin, Slovakia)

The Danube Basin represents a northwestern depocenter of the Middle Miocene Central Paratethys Sea, which was succeed by the Late Miocene Lake Pannon. Although this is an extensively examined area, the application of multidisciplinary studies has proven capable of drawing attention to novel information concerning the depositional environment. Thus, this study aims to reveal climatic and paleoenvironmental changes by using both archive and fresh data drawn from biomarkers, palynology, sedimentology, and geochemistry. The article also addresses the quality, quantity, and thermal maturity of organic matter in relation to hydrocarbon potential. In general, the beginning of Serravallian stage relates to a regression forced by the development of the Antarctic icesheet followed by a pronounced transgression. The results presented here show that the Central Paratethys Sea reacted to the late Badenian (Serravallian) flooding, by an event which triggered a dysoxic, but not euxinic, bottom waters. The climate remained warm and humid, with paratropical to subtropical forests on the continent. Several new depocenters developed during the Sarmatian and divided the depositional environments into a shelfbrake slope in the central part of the Danube Basin, and into deltaic and swamp environments on the basin margins. The climate changed to temperate, leading to the disappearance of subtropical taxa. A shallow lake and swamp environment developed at the beginning of the Pannonian (Tortonian), forcing a salinity decrease connected to the increase in humidity. The degree of hydrocarbon richness of the mudstones is generally fair to good, and the kerogen is of mixed marine-terrestrial origin (II and III). Nonetheless, sediments at the basin margin are clearly immature due to insufficient burial.Web of Science600art. no. 11105

New ⁴⁰Ar/³⁹Ar, fission track and sedimentological data on a middle Miocene tuff occurring in the Vienna Basin:Implications for the north-western Central Paratethys region

The Kuchyňa tuff is found on the Eastern margin of the Vienna Basin and was formed by felsic volcanism. The Ar/Ar single grain sanidine method was applied and resulted in an age of 15.23±0.04 Ma, which can be interpreted as the age of the eruption. The obtained numerical age is in accordance with the subtropical climate inferred by the presence of fossil leaves that originated in an evergreen broadleaved forest. Furthermore, the described volcanism was connected with the syn-rift stage of the back-arc Pannonian Basin system. The sedimentological data from the underlying sandy mudstones indicate alluvial environment what confirms terrestrial conditions during deposition. Moreover, the tuff deposition probably occurred shortly before the Badenian transgression of the Central Paratethys Sea

Mapping European Association of Urology Guideline Practice Across Europe: An Audit of Androgen Deprivation Therapy Use Before Prostate Cancer Surgery in 6598 Cases in 187 Hospitals Across 31 European Countries

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