2.4k citations
- European Organization for Nuclear ResearchCH78 papers
- Foundation for Research and Technology HellasGR60 papers
- Aristotle University of ThessalonikiGR51 papers
- National Technical University of AthensGR47 papers
- National Centre of Scientific Research "Demokritos"GR45 papers
- Centre National de la Recherche ScientifiqueFR43 papers
- Computer Technology Institute and Press “DIOPHANTUS”GR41 papers
- National Observatory of AthensGR40 papers
- Institute for Nuclear ResearchRU32 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR31 papers
- Universidad de ZaragozaES31 papers
- Technische Universität DarmstadtDE27 papers
22 papers · 1 filter
NS5-branes on an ellipsis and novel marginal deformations with parafermions
P. Marios Petropoulos, Konstadinos Sfetsos
We consider NS5-branes distributed along the circumference of an ellipsis and explicitly construct the corresponding gravitational background. This provides a continuous line of de…
Search for half-metallic ferrimagnetism in V-based Heusler alloys MnVZ (ZAl, Ga, In, Si, Ge, Sn)
K Ozdogan, I Galanakis, E Sasioglu +1
Using a state-of-the-art full-potential electronic structure method within the local spin density approximation, we study the electronic and magnetic structure of MnV-based ful…
On supersymmetry and other properties of a class of marginally deformed backgrounds
Rafael Hernandez, Konstadinos Sfetsos, Dimitrios Zoakos
We summarize our recent work on supergravity backgrounds dual to part of the Coulomb branch of N=1 theories constructed as marginal deformations of N=4 Yang-Mills. In particular, w…
Application of the SALI chaos detection method to accelerator mappings
T. Bountis, Ch. Skokos
We apply the Smaller ALignment Index (SALI) method to a 4--dimensional mapping of accelerator dynamics in order to distinguish rapidly, reliably and accurately between ordered and…
Renormalization-group flows and charge transmutation in string theory
Domenico Orlando, P. Marios Petropoulos, Konstadinos Sfetsos
We analyze the behaviour of heterotic squashed-Wess-Zumino-Witten backgrounds under renormalization-group flow. The flows we consider are driven by perturbation creating extra gaug…
B and I-band optical micro-variability observations of the BL Lac objects S5 2007+777 and 3C371
E. M. Xilouris, I. E. Papadakis, P. Boumis +5
We have observed S5 2007+777 and 3C371 in the B and I bands for 13 and 8 nights, respectively, during various observing runs in 2001, 2002 and 2004. The observations resulted in al…