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8 papers · 2 filters
Quantum discord in nuclear magnetic resonance systems at room temperature
J. Maziero, R. Auccaise, L. C. Celeri +6
We review the theoretical and the experimental aspects regarding the quantification and identification of quantum correlations in liquid-state nuclear magnetic resonance (NMR) syst…
Nonlinear dissipation can combat linear loss
D. Mogilevtsev, A. Mikhalychev, V. S. Shchesnovich +1
We demonstrate that it is possible to compensate for effects of strong linear loss when generating non-classical states by engineered nonlinear dissipation. We show that it is alwa…
Thermodynamic cost of acquiring information
Kaonan Micadei, Roberto M. Serra, Lucas C. Celeri
Connections between information theory and thermodynamics have proven to be very useful to establish bounding limits for physical processes. Ideas such as Landauer's erasure princi…
Coherent measurements in quantum metrology
K. Micadei, D. A. Rowlands, F. A. Pollock +3
It is well known that a quantum correlated probe can yield better precision in estimating an unknown parameter than classically possible. However, how such a quantum probe should b…
Surface Code Threshold in the Presence of Correlated Errors
E. Novais, Eduardo R. Mucciolo
We study the fidelity of the surface code in the presence of correlated errors induced by the coupling of physical qubits to a bosonic environment. By mapping the time evolution of…
Entanglement in atomic systems interacting with single-photon pulses in free space
J. P. Santos, F. L. Semião
New technologies providing tight focusing lens and mirrors with large numerical apertures and electro-optic modulation of single photons are now available for the investigation of…