198 citations
- Slovak Academy of SciencesSK8 papers
- Uppsala UniversitySE6 papers
- Stony Brook UniversityUS4 papers
- City University of New YorkUS3 papers
- Hunter CollegeUS3 papers
- Imperial College LondonGB3 papers
- P.N. Lebedev Physical Institute of the Russian Academy of SciencesRU3 papers
- Charles UniversityCZ2 papers
- Czech Academy of Sciences, Institute of MathematicsCZ2 papers
- Helsinki Institute of PhysicsFI2 papers
- Nordic Institute for Theoretical PhysicsSE2 papers
- University of CalgaryCA2 papers
5 papers · 2 filters
Unambiguous comparison of ensembles of quantum states
Michal Sedlak, Mario Ziman, Vladimir Buzek +1
We present a solution of the problem of the optimal unambiguous comparison of two ensembles of unknown quantum states (psi_1)^k and (psi_2)^l. We consider two cases: 1) The two unk…
Discrimination of quantum observables using limited resources
Mario Ziman, Teiko Heinosaari
We address the problem of unambiguous discrimination and identification among quantum observables. We set a general framework and investigate in details the case of qubit observabl…
Highly non-Gaussian states created via cross-Kerr nonlinearity
Tomas Tyc, Natalia Korolkova
We propose a feasible scheme for generation of strongly non-Gaussian states using the cross-Kerr nonlinearity. The resultant states are highly non-classical states of electromagnet…
Unambiguous coherent state identification: Searching a quantum database
Michal Sedlak, Mario Ziman, Ondrej Pribyla +2
We consider an unambiguous identification of an unknown coherent state with one of two unknown coherent reference states. Specifically, we consider two modes of an electromagnetic…
Gaussian quantum marginal problem
J. Eisert, T. Tyc, T. Rudolph +1
The quantum marginal problem asks what local spectra are consistent with a given spectrum of a joint state of a composite quantum system. This setting, also referred to as the ques…