1.9k citations · 11.6k across the 185 of their papers we have counts for
11 papers · 2 filters
Controlled coupling of a single nitrogen-vacancy center to a silver nanowire
Alexander Huck, Shailesh Kumar, Abdul Shakoor +1
We report on the controlled coupling of a single nitrogen-vacancy (NV) center to a surface plasmon mode propagating along a chemically grown silver nanowire. We locate and opticall…
Continuous Variable Quantum Information Processing
Ulrik L. Andersen, Gerd Leuchs, Christine Silberhorn
Observables of quantum systems can posses either a discrete or a continuous spectrum. For example, upon measurements of the photon number of a light state, discrete outcomes will r…
Quantum Light from a Whispering Gallery Mode Disk Resonator
J. U. Fürst, D. V. Strekalov, D. Elser +4
Optical parametric downconversion has proven to be a valuable source of nonclassical light. The process is inherently able to produce twin beam correlations along with individual i…
Hybrid-Entanglement in Continuous Variable Systems
C. Gabriel, A. Aiello, W. Zhong +9
Entanglement is one of the most fascinating features arising from quantum-mechanics and of great importance for quantum information science. Of particular interest are so-called hy…
Quantum optical coherence can survive photon losses: a continuous-variable quantum erasure correcting code
Mikael Lassen, Metin Sabuncu, Alexander Huck +4
A fundamental requirement for enabling fault-tolerant quantum information processing is an efficient quantum error-correcting code (QECC) that robustly protects the involved fragil…
Noise-Powered Probabilistic Concentration of Phase Information
Mario A. Usuga, Christian R. Mueller, Christoffer Wittmann +5
Phase insensitive optical amplification of an unknown quantum state is known to be a fundamentally noisy operation that inevitably adds noise to the amplified state [1 - 5]. Howeve…
Assessing the Polarization of a Quantum Field from Stokes Fluctuation
A. B. Klimov, G. Bjork, J. Soderholm +8
We propose an operational degree of polarization in terms of the variance of the projected Stokes vector minimized over all the directions of the Poincaré sphere. We examine the pr…
A Hybrid Long-Distance Entanglement Distribution Protocol
Jonatan B. Brask, Ioannes Rigas, Eugene S. Polzik +2
We propose a hybrid (continuous-discrete variable) quantum repeater protocol for distribution of entanglement over long distances. Starting from entangled states created by means o…
Experimental Demonstration of Squeezed State Quantum Averaging
Mikael Lassen, Lars Skovgaard Madsen, Metin Sabuncu +2
We propose and experimentally demonstrate a universal quantum averaging process implementing the harmonic mean of quadrature variances. The harmonic mean protocol can be used to ef…
Continuous variable entanglement distillation of Non-Gaussian Mixed States
Ruifang Dong, Mikael Lassen, Joel Heersink +4
Many different quantum information communication protocols such as teleportation, dense coding and entanglement based quantum key distribution are based on the faithful transmissio…
Discrimination of binary coherent states using a homodyne detector and a photon number resolving detector
Christoffer Wittmann, Ulrik L. Andersen, Masahiro Takeoka +1
We investigate quantum measurement strategies capable of discriminating two coherent states probabilistically with significantly smaller error probabilities than can be obtained us…