Zobrazeno 1 - 10 of 14 pro vyhledávání: '"David Vocke"'
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Akademický článek
Optical analogues of the Newton–Schrödinger equation and boson star evolution
Autor: Thomas Roger, Calum Maitland, Kali Wilson, Niclas Westerberg, David Vocke, Ewan M. Wright, Daniele Faccio
Publikováno v: Nature Communications, Vol 7, Iss 1, Pp 1-8 (2016)
In the weak field limit, boson star evolution is governed by the Newton-Schrödinger equation. Here the authors report an optical setup that provides a formal analogue of such dynamics via the interaction between vortex beams and a medium with positi
Externí odkaz: https://doaj.org/article/6100d9b3a6d8480799ef987504ff674b
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2
Two-dimensional acoustic horizon and ergosphere in a nonlocal photon superfluid
Autor: Calum Maitland, Angus Prain, Daniele Faccio, David Vocke, Francesco Marino
Publikováno v: Scopus-Elsevier
Analogue gravity studies the physics of curved spacetime via an analogy with laboratory physics, opening a new window to test the concepts of general relativity experimentally. Sound waves in an inhomogeneous fluid flow behave as a scalar field in a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32cceb5fc4429d855f07ca13e59aa174
https://doi.org/10.1109/cleoe-eqec.2017.8087556
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3
Two dimensional acoustic horizon and ergosphere in a nonlocal photon superfluid
Autor: Angus Prain, Francesco Marino, Calum Maitland, Daniele Faccio, David Vocke
Publikováno v: Conference on Lasers and Electro-Optics.
We present experimental evidence of a two-dimensional black hole horizon and ergosphere for the first time in an analogue system using a nonlocal photon fluid based on a thermal nonlinearity.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::822990b2d96eee2a175612b0afe44d74
https://doi.org/10.1364/cleo_qels.2017.fm4f.7
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4
Emergent geometries and nonlinear-wave dynamics in photon fluids
Autor: Francesco Marino, David Vocke, Calum Maitland, Antonello Ortolan, Daniele Faccio
Publikováno v: Scientific reports (Nature Publishing Group) 6 (2016): 23282–23282. doi:10.1038/srep23282
info:cnr-pdr/source/autori:Marino, F.; Maitland, C.; Vocke, D.; Ortolan, A.; Faccio, D./titolo:Emergent geometries and nonlinear-wave dynamics in photon fluids/doi:10.1038%2Fsrep23282/rivista:Scientific reports (Nature Publishing Group)/anno:2016/pagina_da:23282/pagina_a:23282/intervallo_pagine:23282–23282/volume:6
Scientific Reports
Nonlinear waves in defocusing media are investigated in the framework of the hydrodynamic description of light as a photon fluid. The observations are interpreted in terms of an emergent curved spacetime generated by the waves themselves, which fully
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a3dd996873fb26e5e654fca0deb651c
http://www.scopus.com/inward/record.url?eid=2-s2.0-84961789580&partnerID=q2rCbXpz
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5
Giant collective incoherent shock waves in strong turbulence
Autor: Thomas Roger, David Vocke, Josselin Garnier, Massimiliano Guasoni, Antonio Picozzi, Daniele Faccio, Gang Xu, Stefano Trillo
Contrary to conventional coherent shocks, we show theoretically and experimentally that nonlocal turbulent flows lead to the emergence of large-scale incoherent shock waves, which constitute a collective phenomenon of the incoherent field as a whole.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc43c9308daccfaa9847a2f99ff418fd
http://hdl.handle.net/11392/2365002
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6
Giant collective incoherent shock waves in strongly nonlinear turbulent flows
Autor: Stefano Trillo, Josselin Garnier, Thomas Roger, Antonio Picozzi, Gang Xu, Daniele Faccio, David Vocke
Publikováno v: Scopus-Elsevier
Heriot-Watt University
Contrary to conventional coherent shocks, we show theoretically and experimentally that nonlocal turbulent flows lead to the emergence of large-scale incoherent shock waves, which constitute a collective phenomenon of the incoherent field as a whole.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a5495c1400d9efca8795a8d719d4159
http://hdl.handle.net/11392/2365306
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7
The role of geometry in nonlocal superfluids
Autor: Brian P. Anderson, Kali Wilson, Daniele Faccio, Ewan M. Wright, Francesco Marino, Iacopo Carusotto, David Vocke
Publikováno v: Conference on Lasers and Electro-Optics.
By modifying the geometry of the optical beam, we control the effective nonlocal interaction length of a nonlocal photon fluid. This allows us to access the superfluid flow regime, which would otherwise be unobservable.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::19b0a3d28e7b34ccd62cd29c59a9abb6
https://doi.org/10.1364/cleo_at.2016.jw2a.53
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8
Analogue gravity in photon fluids
Autor: Antonio Picozzi, Iacopo Carusotto, Ewan M. Wright, Thomas Roger, David Vocke, Francesco Marino, Daniele Faccio
Publikováno v: 14th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories
14th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories, Jul 2015, Rome, Italy. pp.1679-1684, ⟨10.1142/9789813226609_0167⟩
Scopus-Elsevier
14th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories, Jul 2015, Rome, Italy. 2, pp.1679-1684, 2017, 〈10.1142/9789813226609_0167〉
International audience; We discuss the main features and our ongoing of work in the field on analogue gravity in photon fluids.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4de960712f2a2af935fb7f369ef04d00
https://hal.archives-ouvertes.fr/hal-01669847
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9
From coherent shocklets to giant collective incoherent shock waves in nonlocal turbulent flows
Autor: David Vocke, Daniele Faccio, Thomas Roger, Stefano Trillo, Josselin Garnier, Gang Xu, Antonio Picozzi
Publikováno v: Nature Communications
Nature Communications, Nature Publishing Group, 2015, 6, n°8131-10 p. ⟨10.1038/ncomms9131⟩
Nature Communications, Nature Publishing Group, 2015, 6 (1), 〈10.1038/ncomms9131〉
Nature Communications, 2015, 6, n°8131-10 p. ⟨10.1038/ncomms9131⟩
Understanding turbulent flows arising from random dispersive waves that interact strongly through nonlinearities is a challenging issue in physics. Here we report the observation of a characteristic transition: strengthening the nonlocal character of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d2128b47a09ca2345a2e46602648e31
http://hdl.handle.net/11392/2334509
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10
Experimental characterization of nonlocal photon fluids
Autor: Thomas Roger, Iacopo Carusotto, David Vocke, Francesco Marino, Ewan M. Wright, Daniele Faccio, Matteo Clerici
Publikováno v: Optica 2 (2015): 484–490. doi:10.1364/OPTICA.2.000484
info:cnr-pdr/source/autori:Vocke, David; Roger, Thomas; Marino, Francesco; Wright, Ewan M.; Carusotto, Iacopo; Clerici, Matteo; Faccio, Daniele/titolo:Experimental characterization of nonlocal photon fluids/doi:10.1364%2FOPTICA.2.000484/rivista:Optica/anno:2015/pagina_da:484/pagina_a:490/intervallo_pagine:484–490/volume:2
Quantum gases of atoms and exciton-polaritons are now well-established theoretical and experimental tools for fundamental studies of quantum many-body physics and suggest promising applications to quantum computing. Given their technological complexi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3a0822398b8c9ec045c40291f289d4e
https://doi.org/10.1364/optica.2.000484
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