Zobrazeno 1 - 10
of 1 532
pro vyhledávání: '"Resch, K"'
Autor:
Fisher, K., Broadbent, A., Shalm, L. K., Yan, Z., Lavoie, J., Prevedel, R., Jennewein, T., Resch, K. J.
The ability to perform computations on encrypted data is a powerful tool for protecting privacy. Recently, protocols to achieve this on classical computing systems have been found. Here we present an efficient solution to the quantum analogue of this
Externí odkaz:
http://arxiv.org/abs/1309.2586
Autor:
Erven, C., Meyer-Scott, E., Fisher, K., Lavoie, J., Higgins, B. L., Yan, Z., Pugh, C. J., Bourgoin, J. -P., Prevedel, R., Shalm, L. K., Richards, L., Gigov, N., Laflamme, R., Weihs, G., Jennewein, T., Resch, K. J.
Publikováno v:
Nature Photonics 8, 292-296 (2014)
Quantum correlations are critical to our understanding of nature, with far-reaching technological and fundamental impact. These often manifest as violations of Bell's inequalities, bounds derived from the assumptions of locality and realism, concepts
Externí odkaz:
http://arxiv.org/abs/1309.1379
Publikováno v:
Phys. Rev. A 84, 051803(R) (2011)
Energy-time entangled photon pairs remain tightly correlated in time when the photons are passed through equal magnitude, but opposite in sign, dispersion. A recent experimental demonstration has observed this effect on ultrafast time-scales using se
Externí odkaz:
http://arxiv.org/abs/1105.3956
Publikováno v:
Phys. Rev. Lett. 106, 110505 (2011)
We present and experimentally demonstrate a communication protocol that employs shared entanglement to reduce errors when sending a bit over a particular noisy classical channel. Specifically, it is shown that, given a single use of this channel, one
Externí odkaz:
http://arxiv.org/abs/1010.2566
Publikováno v:
Nature 466, 601-603 (2010)
Non-classical states of light, such as entangled photon pairs and number states, are essential for fundamental tests of quantum mechanics and optical quantum technologies. The most widespread technique for creating these quantum resources is the spon
Externí odkaz:
http://arxiv.org/abs/1007.4967
Autor:
Gillett, G. G., Dalton, R. B., Lanyon, B. P., Almeida, M. P., Barbieri, M., Pryde, G. J., O'Brien, J. L., Resch, K. J., Bartlett, S. D., White, A. G.
Publikováno v:
Phys. Rev. Lett. 104, 080503 (2010)
A goal of the emerging field of quantum control is to develop methods for quantum technologies to function robustly in the presence of noise. Central issues are the fundamental limitations on the available information about quantum systems and the di
Externí odkaz:
http://arxiv.org/abs/0911.3698
Publikováno v:
Phys.Rev.A 75 022313 (2007)
The simplest decomposition of a Toffoli gate acting on three qubits requires {\em five} 2-qubit gates. If we restrict ourselves to controlled-sign (or controlled-NOT) gates this number climbs to six. We show that the number of controlled-sign gates r
Externí odkaz:
http://arxiv.org/abs/0806.0654
Publikováno v:
Nature Physics 4, 864-868 (2008)
We introduce and implement an interferometric technique based on chirped femtosecond laser pulses and nonlinear optics. The interference manifests as a high-visibility (> 85%) phase-insensitive dip in the intensity of an optical beam when the two int
Externí odkaz:
http://arxiv.org/abs/0804.4022
Autor:
Lanyon, B. P., Barbieri, M., Almeida, M. P., Jennewein, T., Ralph, T. C., Resch, K. J., Pryde, G. J., O'Brien, J. L., Gilchrist, A., White, A. G.
Publikováno v:
Nature Physics 5, 134 (2009)
Quantum computation offers the potential to solve fundamental yet otherwise intractable problems across a range of active fields of research. Recently, universal quantum-logic gate sets - the building blocks for a quantum computer - have been demonst
Externí odkaz:
http://arxiv.org/abs/0804.0272
Autor:
Lanyon, B. P., Weinhold, T. J., Langford, N. K., O'Brien, J. L., Resch, K. J., Gilchrist, A., White, A. G.
Publikováno v:
Phys. Rev. Lett. 100, 060504 (2008)
Quantum information carriers with higher dimension than the canonical qubit offer significant advantages. However, manipulating such systems is extremely difficult. We show how measurement induced non-linearities can be employed to dramatically exten
Externí odkaz:
http://arxiv.org/abs/0707.2880