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
Showing 2008 · quant-phShow all
3 papers · 2 filters
quant-ph2008★ 26 cited
Bound on trace distance based on superfidelity
Zbigniew Puchała, Jarosław Adam Miszczak
We provide a bound for the trace distance between two quantum states. The lower bound is based on the superfidelity, which provides the upper bound on quantum fidelity. One of the…
quant-ph2008★ 17 cited
Unambiguous comparison of unitary channels
Michal Sedlak, Mario Ziman
We address the problem of unambiguous comparison of a pair of unknown qudit unitary channels. Using the framework of process positive operator valued measures (PPOVM) we characteri…
quant-ph2008★ 6 cited
Repeatable quantum memory channels
Tomas Rybar, Mário Ziman
Within the framework of quantum memory channels we introduce the notion of repeatability of quantum channels. In particular, a quantum channel is called repeatable if there exist a…