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- Institute for Nuclear Research and Nuclear EnergyBG100 papers
- Georgi Nadjakov Institute of Solid State PhysicsBG32 papers
- Institute of Mathematics and InformaticsBG32 papers
- Sofia University "St. Kliment Ohridski"BG31 papers
- University of Tennessee at KnoxvilleUS18 papers
- University of WarsawPL17 papers
- Centre National de la Recherche ScientifiqueFR14 papers
- Joint Institute for Nuclear ResearchRU14 papers
- Boston UniversityUS11 papers
- European Organization for Nuclear ResearchCH11 papers
- Max Planck Institute for Polymer ResearchDE11 papers
- Oak Ridge National LaboratoryUS11 papers
66 papers · 1 filter
Purely electromagnetic spacetimes
B. V. Ivanov
Electrovacuum solutions devoid of usual mass sources are classified in the case of one, two and three commuting Killing vectors. Three branches of solutions exist. Electromagnetica…
Navigation between quantum states by quantum mirrors
P. A. Ivanov, B. T. Torosov, N. V. Vitanov
We introduce a technique that allows one to connect any two arbitrary (pure or mixed) superposition states of an N-state quantum system. The proposed solution to this inverse quant…
Population trapping in three-state quantum loops revealed by Householder reflections
A. A. Rangelov, N. V. Vitanov, B. W. Shore
Population trapping occurs when a particular quantum-state superposition is immune to action by a specific interaction, such as the well-known dark state in a three-state lambda sy…
Instabilities at vicinal crystal surfaces - competition between the electromigration of the adatoms and the kinetic memory effect
Bogdan Ranguelov, Stoyan Stoyanov
We studied the step dynamics during sublimation and growth in the presence of electromigration force acting on the adatoms. In the limit of fast surface diffusion and slow kinetics…
Steering quantum transitions between three crossing energy levels
S. S. Ivanov, N. V. Vitanov
We calculate the propagator and the transition probabilities for a coherently driven three-state quantum system. The energies of the three states change linearly in time, whereas t…
Integrable systems from membranes on AdS_4 x S^7
P. Bozhilov
We describe how Neumann and Neumann-Rosochatius type integrable systems, as well as the continuous limit of the SU(2) integrable spin chain, can be obtained from membranes on AdS_4…