Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Langford, Nathan K"'
Autor:
Kargi, Cahit, Dehollain, Juan Pablo, Sieberer, Lukas M., Henriques, Fabio, Olsacher, Tobias, Hauke, Philipp, Heyl, Markus, Zoller, Peter, Langford, Nathan K.
Digital quantum simulation (DQS) is one of the most promising paths for achieving first useful real-world applications for quantum processors. Yet even assuming rapid progress in device engineering and development of fault-tolerant quantum processors
Externí odkaz:
http://arxiv.org/abs/2110.11113
Publikováno v:
New J. Phys 24, 065002 (2022)
High-efficiency photon-pair production is a long-sought-after goal for many optical quantum technologies, and coherent photon conversion processes are promising candidates for achieving this. We show theoretically how to control coherent conversion b
Externí odkaz:
http://arxiv.org/abs/2110.03110
We present a static framework for analysing quantum routing protocols that we call the \textit{cost-vector formalism}. Here, quantum networks are recast as multi-graphs where edges represent two-qubit entanglement resources that \textit{could} exist
Externí odkaz:
http://arxiv.org/abs/2105.00418
Autor:
Jerger, Markus, Reshitnyk, Yarema, Oppliger, Markus, Potočnik, Anton, Mondal, Mintu, Wallraff, Andreas, Goodenough, Kenneth, Wehner, Stephanie, Juliusson, Kristinn, Langford, Nathan K., Fedorov, Arkady
Publikováno v:
Nature Communications 7, 12930 (2016)
Classical realism demands that system properties exist independently of whether they are measured, while noncontextuality demands that the results of measurements do not depend on what other measurements are performed in conjunction with them. The Be
Externí odkaz:
http://arxiv.org/abs/1602.00440
Autor:
Metcalf, Benjamin J., Spring, Justin B., Humphreys, Peter C., Thomas-peter, Nicholas, Barbieri, Marco, Kolthammer, W. Steven, Jin, Xian-min, Langford, Nathan K., Kundys, Dmytro, Gates, James C., Smith, Brian J., Smith, Peter G. R., Walmsley, Ian A.
Quantum teleportation is a fundamental concept in quantum physics which now finds important applications at the heart of quantum technology including quantum relays, quantum repeaters and linear optics quantum computing (LOQC). Photonic implementatio
Externí odkaz:
http://arxiv.org/abs/1409.4267
Autor:
Langford, Nathan K.
The new and rapidly growing field of circuit QED offers extremely exciting prospects for learning about and exercising intimate control over quantum systems, providing flexible, engineerable design and strong nonlinearities and interactions in system
Externí odkaz:
http://arxiv.org/abs/1310.1897
Autor:
Lapkiewicz, Radek, Li, Peizhe, Schaeff, Christoph, Langford, Nathan K., Ramelow, Sven, Wiesniak, Marcin, Zeilinger, Anton
In a recent paper [arXiv:1301.2887] Ahrens et al. claim that our "(...) experiment on qutrits does not test Klyachko et al.'s inequality, but an inequality with extra correlations" and that the "(...) experiment cannot be considered a proper test of
Externí odkaz:
http://arxiv.org/abs/1305.5529
Autor:
Spring, Justin B., Salter, Patrick S., Metcalf, Benjamin J., Humphreys, Peter C., Moore, Merritt, Thomas-Peter, Nicholas, Barbieri, Marco, Jin, Xian-Min, Langford, Nathan K., Kolthammer, W. Steven, Booth, Martin J., Walmsley, Ian A.
Publikováno v:
Optics Express, Vol. 21, Issue 11, pp. 13522-13532 (2013)
A key obstacle to the experimental realization of many photonic quantum-enhanced technologies is the lack of low-loss sources of single photons in pure quantum states. We demonstrate a promising solution: generation of heralded single photons in a si
Externí odkaz:
http://arxiv.org/abs/1304.7781
Autor:
Langford, Nathan K.
A prime goal of quantum tomography is to provide quantitatively rigorous characterisation of quantum systems, be they states, processes or measurements, particularly for the purposes of trouble-shooting and benchmarking experiments in quantum informa
Externí odkaz:
http://arxiv.org/abs/1212.2982
Autor:
Spring, Justin B., Metcalf, Benjamin J., Humphreys, Peter C., Kolthammer, W. Steven, Jin, Xian-Min, Barbieri, Marco, Datta, Animesh, Thomas-Peter, Nicholas, Langford, Nathan K., Kundys, Dmytro, Gates, James C., Smith, Brian J., Smith, Peter G. R., Walmsley, Ian A.
Publikováno v:
Science 339 798-801 (2013)
While universal quantum computers ideally solve problems such as factoring integers exponentially more efficiently than classical machines, the formidable challenges in building such devices motivate the demonstration of simpler, problem-specific alg
Externí odkaz:
http://arxiv.org/abs/1212.2622