138 citations · 266 across the 12 of their papers we have counts for
11 papers
Construction of quantum states by special superpositions of coherent states
P. Adam, E. Molnar, G. Mogyorosi +3
We consider the optimal approximation of certain quantum states of a harmonic oscillator with the superposition of a finite number of coherent states in phase space placed either o…
Universal covariant quantum cloning circuits for qubit entanglement manipulation
Levente Szabo, Matyas Koniorczyk, Peter Adam +1
We consider the entanglement manipulation capabilities of the universal covariant quantum cloner or quantum processor circuit for quantum bits. We investigate its use for cloning a…
General criterion for oblivious remote state preparation
Z. Kurucz, P. Adam, J. Janszky
A necessary and sufficient condition is given for general exact remote state preparation (RSP) protocols to be oblivious, that is, no information about the target state can be retr…
Continuous variable remote state preparation
Z. Kurucz, P. Adam, Z. Kis +1
We extend exact deterministic remote state preparation (RSP) with minimal classical communication to quantum systems of continuous variables. We show that, in principle, it is poss…
Teleportation with partially entangled states
Z. Kurucz, M. Koniorczyk, J. Janszky
The relations of antilinear maps, bipartite states and quantum channels is summarized. Antilinear maps are applied to describe bipartite states and entanglement. Teleportation is t…
Competitive stochastic noises in coherently driven two-level atoms and quantum interference
P. Adam, A. Karpati, W. Gawlik +1
A system of coherently-driven two-level atoms is analyzed in presence of two independent stochastic perturbations: one due to collisions and a second one due to phase fluctuations…