98 citations · 252 across the 14 of their papers we have counts for
14 papers
Unconditional entanglement interface for quantum networks
Christoph Baune, Jan Gniesmer, Sacha Kocsis +4
Entanglement drives nearly all proposed quantum information technologies. By up-converting part of a 1550 nm two-mode squeezed vacuum state to 532 nm, we demonstrate the generation…
Quantum controlled-Z gate for weakly interacting qubits
M. Micuda, R. Starek, I. Straka +5
We propose and experimentally demonstrate a scheme for implementation of a maximally entangling quantum controlled-Z gate between two weakly interacting systems. We conditionally e…
Generalized Hofmann quantum process fidelity bounds for quantum filters
Michal Sedlak, Jaromír Fiurášek
We propose and investigate bounds on quantum process fidelity of quantum filters, i.e. probabilistic quantum operations represented by a single Kraus operator K. These bounds gener…
Transformations of symmetric multipartite Gaussian states by Gaussian LOCC
Ondřej Černotík, Jaromír Fiurášek
Multipartite quantum correlations, in spite of years of intensive research, still leave many questions unanswered. While bipartite entanglement is relatively well understood for Ga…
Orthogonalization of partly unknown quantum states
M. Jezek, M. Micuda, I. Straka +3
A quantum analog of the fundamental classical NOT gate is a quantum gate that would transform any input qubit state onto an orthogonal state. Intriguingly, this universal NOT gate…
Process fidelity estimation of linear optical quantum CZ gate: A comparative study
M. Micuda, M. Sedlak, I. Straka +4
We present a systematic comparison of different methods of fidelity estimation of a linear optical quantum controlled-Z gate implemented by two-photon interference on a partially p…