ORCID Profile
0000-0002-3668-9474
Current Organisation
University of Southampton
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Publisher: American Physical Society (APS)
Date: 17-06-2016
Publisher: IOP Publishing
Date: 23-11-2011
Publisher: The Optical Society
Date: 25-09-2013
DOI: 10.1364/OE.21.023401
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2009
Publisher: IOP Publishing
Date: 20-02-2019
Publisher: American Association for the Advancement of Science (AAAS)
Date: 02-05-2008
Abstract: Quantum technologies based on photons will likely require an integrated optics architecture for improved performance, miniaturization, and scalability. We demonstrate high-fidelity silica-on-silicon integrated optical realizations of key quantum photonic circuits, including two-photon quantum interference with a visibility of 94.8 ± 0.5% a controlled-NOT gate with an average logical basis fidelity of 94.3 ± 0.2% and a path-entangled state of two photons with fidelity of %. These results show that it is possible to directly “write” sophisticated photonic quantum circuits onto a silicon chip, which will be of benefit to future quantum technologies based on photons, including information processing, communication, metrology, and lithography, as well as the fundamental science of quantum optics.
Publisher: American Physical Society (APS)
Date: 26-09-2018
Publisher: Springer Science and Business Media LLC
Date: 27-03-2013
DOI: 10.1038/SREP01539
Publisher: American Physical Society (APS)
Date: 10-04-2014
Publisher: AIP Publishing
Date: 04-06-2012
DOI: 10.1063/1.4724105
Abstract: Optical interferometry is amongst the most sensitive techniques for precision measurement. By increasing the light intensity, a more precise measurement can usually be made. However, if the s le is light sensitive entangled states can achieve the same precision with less exposure. This concept has been demonstrated in measurements of known optical components. Here, we use two-photon entangled states to measure the concentration of a blood protein in an aqueous buffer solution. We use an opto-fluidic device that couples a waveguide interferometer with a microfluidic channel. These results point the way to practical applications of quantum metrology to light-sensitive s les.
Publisher: American Physical Society (APS)
Date: 20-11-2013
Publisher: Springer Science and Business Media LLC
Date: 11-12-2011
Publisher: IOP Publishing
Date: 14-06-2013
Publisher: American Chemical Society (ACS)
Date: 12-06-0027
Publisher: Springer Science and Business Media LLC
Date: 24-05-2009
Publisher: Springer Science and Business Media LLC
Date: 30-03-2015
Publisher: AIP Publishing
Date: 22-11-2010
DOI: 10.1063/1.3497087
Abstract: We demonstrate photonic quantum circuits that operate at the stringent levels that will be required for future quantum information science and technology. These circuits are fabricated from silica-on-silicon waveguides forming directional couplers and interferometers. While our focus is on the operation of quantum circuits, to test this operation required construction of a photon source that produced near-identical pairs of photons. We show nonclassical interference with two photons and a two-photon entangling logic gate that operate with near-unit fidelity. These results are a significant step toward large-scale operation of photonic quantum circuits.
Publisher: American Association for the Advancement of Science (AAAS)
Date: 04-09-2009
Abstract: A quantum algorithm to factor numbers is implemented on an optical chip.
Publisher: American Association for the Advancement of Science (AAAS)
Date: 17-09-2010
Abstract: Random walks are powerful tools for modeling statistical events. The analogous quantum walk involves particles tunneling between available sites. Peruzzo et al. (p. 1500 see the Perspective by Hillery ) now report on the quantum walk of a correlated pair of photons propagating through a coupled waveguide array. The output pattern resulting from the injection of two correlated photons possess quantum features, indicating that the photons retain their correlations as they walk randomly through the waveguide array, allowing scale-up and parallel searches over many possible paths.
Publisher: American Physical Society (APS)
Date: 11-10-2011
Publisher: American Physical Society (APS)
Date: 10-07-2013
Location: United Kingdom of Great Britain and Northern Ireland
Location: United States of America
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Alberto Politi.