Zobrazeno 1 - 10
of 64
pro vyhledávání: '"P. R. Tapster"'
Autor:
Lawrence C. Carter, Simon R. Tapster, Ben J. Williamson, Yannick Buret, David Selby, Gavyn K. Rollinson, Ian Millar, Daniel B. Parvaz
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-20 (2022)
Abstract Porphyry-type deposits are a vital source of green technology metals such as copper and molybdenum. They typically form in subduction-related settings from large, long-lived magmatic systems. The most widely accepted model for their formatio
Externí odkaz:
https://doaj.org/article/c2db51f5694847769d13ebd5b514adc4
Autor:
Xuyang Meng, Jackie M. Kleinsasser, Jeremy P. Richards, Simon R. Tapster, Pedro J. Jugo, Adam C. Simon, Daniel J. Kontak, Laurence Robb, Grant M. Bybee, Jeffrey H. Marsh, Richard A. Stern
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Tectonomagmatic conditions in the Precambrian were hypothesized to be unfavorable for porphyry Cu deposit formation. Here, the authors show that metallogenic processes typify Phanerozoic porphyry Cu deposits operated by ~1.88 Ga, reflecting modificat
Externí odkaz:
https://doaj.org/article/60fafb0c2e2f4cd28c7f73596751a4d7
Autor:
P R Tapster, J G Rarity
In parametric downconversion the quantum effects arise because two photons are created from one pump photon. Detection of photons in one train can be used to modify the quantum statistics of the other train to produce antibunched and/or sub-poissonia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::419c49efecfbe94b7511fd81815fd2aa
https://doi.org/10.1201/9781003069539-7
https://doi.org/10.1201/9781003069539-7
Publikováno v:
Optics Communications. 283:2465-2471
A free space quantum key distribution system has been demonstrated. Consideration has been given to factors such as field of view and spectral width, to cut down the deleterious effect from background light levels. Suitable optical sources such as la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e78838f523770a0dad646a65c8b7d1bb
https://doi.org/10.1016/j.optcom.2009.10.039
https://doi.org/10.1016/j.optcom.2009.10.039
Publikováno v:
Journal of Modern Optics. 48:1887-1901
We have designed and built a free space quantum cryptography system. It operates using weak laser pulses with polarization modulation by acousto-optic switching. The system also incorporates full key sifting and error correction between computers con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb6698846873e74cef0c510cc702f616
https://doi.org/10.1080/09500340108240895
https://doi.org/10.1080/09500340108240895
Publikováno v:
Physical Review E. 61:2929-2935
We make hard-sphere colloidal crystals from polymethyl methacrylate spheres suspended in organic solvents at high volume fractions. The samples are crystallized between two glass plates separated by 10-\ensuremath{\mu}m spacer beads. We study the opt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc877224c9b132c613b2ca7ddcfd10a5
https://doi.org/10.1103/physreve.61.2929
https://doi.org/10.1103/physreve.61.2929
Autor:
John Rarity, P R Tapster
Publikováno v:
Physical Review A. 59:R35-R38
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78608b214c207f89321b0788a8ef9022
https://doi.org/10.1103/physreva.59.r35
https://doi.org/10.1103/physreva.59.r35
Autor:
P. R. Tapster, John Rarity
Publikováno v:
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences. 355:2267-2277
We describe the simplest single–photon encoding schemes and introduce the concept of a quantum optical gate. These gates can be used to build up arbitrary entangled states of many initially separate single photons. Experimental realization of such
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e566ed8ac7456eb140af3484aa77141
https://doi.org/10.1098/rsta.1997.0125
https://doi.org/10.1098/rsta.1997.0125
Publikováno v:
Europhysics Letters (EPL). 22:95-100
We measure fourth-order interference occurring when energy-entangled photon pairs are launched into opposite ports of a single-mode-fibre interferometer. The resulting 90% coincidence fringe visibility is limited only by dispersion and polarisation a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7c4860815a8c28d2161f470f06d62c0
https://doi.org/10.1209/0295-5075/22/2/004
https://doi.org/10.1209/0295-5075/22/2/004
Publikováno v:
Applied optics. 29(19)
We exploit the coincidence properties of photon pairs created in spontaneous parametric fluorescence to perform a low light level rangefinding experiment. One photon of each pair is sent to the target, and the small fraction returned is delayed by th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f46f7cd086b193931708916f8c8dd469
https://pubmed.ncbi.nlm.nih.gov/20567354
https://pubmed.ncbi.nlm.nih.gov/20567354