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245 citations
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TL;DR: In this paper, the authors describe a quantum networking architecture which can provide the flexibility and scalability likely to be critical for supporting widespread deployment of quantum applications, including optical-layer multiplexing, switching and routing of quantum signals; quantum key distribution (QKD) in a dynamically reconfigured optical network; and coexistence of QKD with strong conventional telecom traffic on the same fibre.
Abstract: Modern optical networking techniques have the potential to greatly extend the applicability of quantum communications by moving beyond simple point-to-point optical links and by leveraging existing fibre infrastructures. We experimentally demonstrate many of the fundamental capabilities that are required. These include optical-layer multiplexing, switching and routing of quantum signals; quantum key distribution (QKD) in a dynamically reconfigured optical network; and coexistence of quantum signals with strong conventional telecom traffic on the same fibre. We successfully operate QKD at 1310 nm over a fibre shared with four optically amplified data channels near 1550 nm. We identify the dominant impairment as spontaneous anti-Stokes Raman scattering of the strong signals, quantify its impact, and measure and model its propagation through fibre. We describe a quantum networking architecture which can provide the flexibility and scalability likely to be critical for supporting widespread deployment of quantum applications.
244 citations
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TL;DR: The first reported experimental observation of an extremely fast shift of the n = 1 exciton transition energy in GaAs quantum-well heterostructures is described and interpreted in terms of an optical Stark effect.
Abstract: We describe the first reported experimental observation of an extremely fast shift of the n = 1 exciton transition energy in GaAs quantum-well heterostructures. The shift is produced by optical pumping below the band gap and is not associated with a carrier or exciton population. We interpret the shift in terms of an optical Stark effect. We present a model for the Stark effect on the ground-state exciton in quantum wells and find good agreement between the predictions of the model and our experimental results.
244 citations
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TL;DR: It is shown that the circuit model found in Part I can be represented in terms of cascaded two-port networks coupled through a single modal transformer and also allows to unveil interesting properties of the PL channel, such as symmetry, that were previously unknown.
Abstract: In Part I of this work, we introduced multiconductor-transmission-line (MTL) theory to model the indoor power-line (PL) channel. We have also shown that the proposed MTL approach can also be used to take into consideration both the topology of the link and particular wiring practices such as bonding. In this contribution, we continue our bottom-up approach to indoor PL channel modeling and we show that the circuit model found in Part I can be represented in terms of cascaded two-port networks (2PNs) coupled through a single modal transformer. Once the equivalent 2PN representation is obtained, it is possible to represent the whole PL link by means of transmission (ABCD) matrices only. The results presented here allow us to reveal that the PL channel is a more deterministic media than commonly believed and also allows us to unveil interesting properties of the PL channel, such as symmetry, that were previously unknown.
243 citations
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TL;DR: A case study designed to investigate two alternatives for reducing the cost of mutation, randomly selected x% mutation and constrained abs/ror mutation, which provide experimental data indicating that both alternatives lead to test sets that distinguish a significant number of nonequivalent mutants and provide high all-uses coverage.
243 citations
Authors
Showing all 3097 results
Name | H-index | Papers | Citations |
---|---|---|---|
Joseph E. Stiglitz | 164 | 1142 | 152469 |
Pete Smith | 156 | 2464 | 138819 |
Jean-Marie Tarascon | 136 | 853 | 137673 |
Ramamoorthy Ramesh | 122 | 649 | 67418 |
Martin Vetterli | 105 | 761 | 57825 |
Noga Alon | 104 | 895 | 44575 |
Amit P. Sheth | 101 | 753 | 42655 |
Harold G. Craighead | 101 | 569 | 40357 |
Susan T. Dumais | 100 | 346 | 60206 |
Andrzej Cichocki | 97 | 952 | 41471 |
Robert E. Kraut | 97 | 297 | 38116 |
Kishor S. Trivedi | 95 | 698 | 36816 |
David R. Clarke | 90 | 553 | 36039 |
Axel Scherer | 90 | 736 | 43939 |
Michael R. Lyu | 89 | 696 | 33257 |