283 citations
- Bulgarian Academy of SciencesBG5 papers
- Institute for Nuclear Research and Nuclear EnergyBG5 papers
- Georgi Nadjakov Institute of Solid State PhysicsBG4 papers
- Joint Institute for Nuclear ResearchRU3 papers
- University of KaiserslauternDE3 papers
- Cardiff UniversityGB2 papers
- Centre de Recherche Astrophysique de LyonFR2 papers
- European Organization for Nuclear ResearchCH2 papers
- Galaxies, Etoiles, Physique et InstrumentationFR2 papers
- Institute of Nuclear Physics, Polish Academy of SciencesPL2 papers
- Lomonosov Moscow State UniversityRU2 papers
- Lyon 1 UniversitéFR2 papers
9 papers · 1 filter
Design of quantum Fourier transforms and quantum algorithms by using circulant Hamiltonians
B. T. Torosov, N. V. Vitanov
We propose a technique for design of quantum Fourier transforms, and ensuing quantum algorithms, in a single interaction step by engineered Hamiltonians of circulant symmetry. The…
Simple implementation of a quantum search with trapped ions
Svetoslav S. Ivanov, Peter A. Ivanov, Nikolay V. Vitanov
We propose an ion trap implementation of Grover's quantum search algorithm for an unstructured database of arbitrary length N. The experimental implementation is appealingly simple…
Degenerate Landau-Zener model: Exact analytical solution
G. S. Vasilev, S. S. Ivanov, N. V. Vitanov
The exact analytical solution of the degenerate Landau-Zener model, wherein two bands of degenerate energies cross in time, is presented. The solution is derived by using the Morri…
Resonant excitation amidst dephasing: An exact analytic solution
E. S. Kyoseva, N. V. Vitanov
An exact analytic solution is presented for coherent resonant excitation of a two-state quantum system driven by a time-dependent pulsed external field with a hyperbolic-secant sha…
Dissipation control in cavity QED with oscillating mode-structures
I. E. Linington, B. M. Garraway
We demonstrate how a time-dependent dissipative environment may be used as a tool for controlling the quantum state of a two-level atom. In our model system the frequency and coupl…
Coherent pulsed excitation of degenerate multistate systems: Exact analytic solutions
E. S. Kyoseva, N. V. Vitanov
We show that the solution of a multistate system composed of N degenerate lower (ground) states and one upper (excited) state can be reduced by using the Morris-Shore transformatio…