161 citations
- Freie Universität BerlinDE2 papers
- Carleton UniversityCA1 paper
- Centre for Ultrahigh Bandwidth Devices for Optical SystemsAU1 paper
- Centro de AstrobiologíaES1 paper
- Chalmers University of TechnologySE1 paper
- European Organization for Nuclear ResearchCH1 paper
- GfK (Germany)DE1 paper
- Goethe University FrankfurtDE1 paper
- Institut Laue-LangevinFR1 paper
- Instituto de Pesquisas Jardim Botânico do Rio de JaneiroBR1 paper
- Instituto Nacional de Matemática Pura e AplicadaBR1 paper
- Istituto Nazionale di Fisica Nucleare, Sezione di MilanoIT1 paper
4 papers · 1 filter
Asymptotic correctability of Bell-diagonal quantum states and maximum tolerable bit error rates
Kedar S. Ranade, Gernot Alber
The general conditions are discussed which quantum state purification protocols have to fulfill in order to be capable of purifying Bell-diagonal qubit-pair states, provided they c…
Security bound of two-bases quantum key-distribution protocols using qudits
Georgios M. Nikolopoulos, Gernot Alber
We investigate the security bounds of quantum cryptographic protocols using -level systems. In particular, we focus on schemes that use two mutually unbiased bases, thus extendi…
Controlling quantum systems by embedded dynamical decoupling schemes
Oliver Kern, Gernot Alber
A dynamical decoupling method is presented which is based on embedding a deterministic decoupling scheme into a stochastic one. This way it is possible to combine the advantages of…
Suppressing decoherence of quantum algorithms by jump codes
Oliver Kern, Gernot Alber
The stabilizing properties of one-error correcting jump codes are explored under realistic non-ideal conditions. For this purpose the quantum algorithm of the tent-map is decompose…