WebMar 15, 2010 · This paper proposes a simple scheme to generate a four-atom entangled cluster state in cavity quantum electrodynamics. With the assistantce of a strong classical field the cavity is only virtually excited and no quantum information will be transferred from the atoms to the cavity during the preparation for a four-atom entangled cluster state, … WebPhase-covariant qubit channels Themostgeneralformofthephase-covariantqubitchannelreads[27,28] Λ[X]= 1 2 [(I +λ∗σ 3)TrX+λ 1σ 1Tr(σ 1X)+λ 1σ 2Tr(σ 2X)+λ 3σ 3Tr(σ 3X)],(6) whereσ αarethePaulimatrices.Moreover,λ 1andλ 3aretwoofitseigenvalues(λ 1istwo-times …
Related papers: Phase-covariant mixtures of non-unital qubit maps
WebMay 15, 2009 · @article{osti_21300771, title = {Phase-covariant quantum benchmarks}, author = {Calsamiglia, J and Aspachs, M and Munoz-Tapia, R and Bagan, E}, abstractNote = {We give a quantum benchmark for teleportation and quantum storage experiments suited for pure and mixed test states. The benchmark is based on the average fidelity over a … WebSubjects:Quantum Physics (quant-ph) arXiv:2211.01514[pdf, other] Title:Creating large Fock states and massively squeezed states in optics using systems with nonlinear bound states in the continuum Authors:Nicholas Rivera, Jamison Sloan, Yannick Salamin, John D. Joannopoulos, Marin Soljacic Subjects:Quantum Physics (quant-ph) arsip adalah jurnal
Phase-covariant mixtures of non-unital qubit maps
WebMay 20, 2024 · We give an extensive characterization of the channels acting on the qubit system. Seizing the mathematical simplicity of the qubit channels that leave invariant the state with highest entropy, we present … WebII. OPTIMAL PHASE-COVARIANT CLONING A cloning map is a special kind of quantum channel, i.e. a trace-preserving CP map. In the cloning case, the CP mapC goes from … WebApr 17, 2024 · By focusing on the frequency estimation in the presence of phase-covariant noise, as the first main example to demonstrate the reliability and efficiency of the method, a useful prescription for practical estimation is provided, by determining the optimal initial state and the optimal measurement. banana and palm beer