Purification and redistribution of entanglement via single local filtering

The effect of filtering operation with respect to purification and concentration of entanglement in quantum states are discussed in this paper. It is shown, through examples, that the local action of the filtering operator on a part of the composite quantum state allows for purification of the remaining part of the state. The redistribution of entanglement in the subsystems of a noise affected state is shown to be due to the action of local filtering on the non-decohering part of the system. The varying effects of the filtering parameter, on the entanglement transfer between the subsystems, depending on the choice of the initial quantum state is illustrated.Comment: 6 pages, 8 figures; Minor corrections done; Published versio

Library and Documentation Centre

Library and Documentation Centre of the ICAR-CMFRI one of the best-specialised Libraries in the field of fisheries and marine sciences. The Centre plays a vital role in collection, development and dissemination of scientific information to meet the present and future needs of the Institute. Library extends its services to the staff of the Institute including the Regional/Research Centres spread across different maritime states of the country as well as to students and researchers from other Institutions, State Fisheries Departments, Universities and Colleges

What does monogamy in higher powers of a correlation measure mean?

We examine here the proposition that all multiparty quantum states can be made monogamous by considering positive integral powers of any quantum correlation measure. With Rajagopal-Rendell quantum deficit as the measure of quantum correlations for symmetric 3-qubit pure states, we illustrate that monogamy inequality is satisfied for higher powers of quantum deficit. We discuss the drawbacks of this inequality in quantification of correlations in the state. We also prove a monogamy inequality in higher powers of classical mutual information and bring out the fact that such inequality need not necessarily imply restricted shareability of correlations. We thus disprove the utility of higher powers of any correlation measure in establishing monogamous nature in multiparty quantum states.Comment: 7 pages, 1 figure, 1 table; comments welcom

Impact of Cyclone Vardha on fishers and their livelihoods

The Vardah Cyclone struck Chennai, Kanchipuram and Thiruvallur coastal districts of Tamil Nadu on 12th December 2016 and impacted nearly 25000 fisher families. Wind speed of 140 km/hour and tidal waves inundated the low lying areas of coastal villages causing very heavy damage

Unusual catch rates of cuttlefish in a multiday trawler

Cuttlefish is one of the commercially important group of cephalopods caught by multi-night trawlers along the coast of Karnataka. The catch rate of cuttlefish in multiday trawlers varies from <5 kg/haul during December-April period to 50-300 kg/haul during the peak fishing season in August- September

Certain Issues in Web Page Prediction, Classification and Clustering in Data Mining

Nowadays, data mining which is a part of web mining plays a vital role in various applications such as search engines, health care centers for extracting the individual patient details among huge database, analyzing disease based on basic criteria, education system for analyzing their performance level with other system, social networking, E-Commerce and knowledge management etc., which extract the information based on the user query. The issues are time taken to mine the target content or webpage from the search engines, space complexity and predicting the frequent webpage for the next user based on users\u27 behaviour