142 citations
- Bulgarian Academy of SciencesBG32 papers
- Sofia University "St. Kliment Ohridski"BG16 papers
- Boston UniversityUS3 papers
- University of KaiserslauternDE3 papers
- University of RijekaHR3 papers
- University of SussexGB3 papers
- Zagreb School of Economics and ManagementHR3 papers
- Hong Kong University of Science and TechnologyHK2 papers
- International Laboratory of High Magnetic Fields and Low TemperaturesPL2 papers
- Lawrence Berkeley National LaboratoryUS2 papers
- Leibniz Institute for Solid State and Materials ResearchDE2 papers
- Rutgers, The State University of New JerseyUS2 papers
5 papers · 1 filter
Counterintuitive transitions between crossing energy levels
A. A. Rangelov, J. Piilo, N. V. Vitanov
We calculate analytically the probabilities for intuitive and counterintuitive transitions in a three-state system, in which two parallel energies are crossed by a third, tilted en…
Extension of the Morris-Shore transformation to multilevel ladders
A. A. Rangelov, N. V. Vitanov, B. W. Shore
We describe situations in which chains of N degenerate quantum energy levels, coupled by time-dependent external fields, can be replaced by independent sets of chains of length N,…
Stimulated Raman adiabatic passage into continuum
A. A. Rangelov, N. V. Vitanov, E. Arimondo
We propose a technique which produces nearly complete ionization of the population of a discrete state coupled to a continuum by a two-photon transition via a lossy intermediate st…
Diamagnetic susceptibility of spin-triplet ferromagnetic superconductors
H. Belich, Octavio D. Rodriguez Salmon, Diana V. Shopova +1
We calculate the diamagnetic susceptibility in zero external magnetic field above the phase transition from ferromagnetic phase to phase of coexistence of ferromagnetic order and u…
Heat capacity uncovers physics of a frustrated spin tube
N. B. Ivanov, J. Schnack, R. Schnalle +6
We report on refined experimental results concerning the low-temperature specific heat of the frustrated spin tube material [(CuCl2tachH)3Cl]Cl2. This substance turns out to be an…