Zobrazeno 1 - 10
of 709
pro vyhledávání: '"acoustic horizon"'
Autor:
Khlebnikov, Sergei
Publikováno v:
Phys. Rev. A 109, 023305 (2024)
A recent experiment has demonstrated formation of a supersonic region in a convergent two-dimensional flow of a condensate of cesium atoms. Theoretical description of this effect has made use of stationary solutions to the Gross-Pitaevskii equation w
Externí odkaz:
http://arxiv.org/abs/2310.13159
Understanding the dynamics and stability of transonic flows in quantum fluids, especially for those beyond one spatial dimension, is an outstanding challenge, with applications ranging from nonlinear optics and condensed matter to analogue gravity. O
Externí odkaz:
http://arxiv.org/abs/2304.10667
Akademický článek
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Publikováno v:
New J. Phys. 26 053021 (2024)
A transonic fluid flow generates an acoustic hole that is the hydrodynamic analogue of a gravitational black hole. Acoustic holes emit a detectable thermal radiation of phonons at a characteristic Hawking temperature. The crucial concept is that the
Externí odkaz:
http://arxiv.org/abs/2202.13790
Publikováno v:
New Journal of Physics, Vol 26, Iss 5, p 053021 (2024)
A transonic fluid flow generates an acoustic hole that is the hydrodynamic analogue of a gravitational black hole (BH). Acoustic holes emit a detectable thermal radiation of phonons at a characteristic Hawking temperature. The crucial concept is that
Externí odkaz:
https://doaj.org/article/8b64fdbf2e714041a68c8188f3bebf1e
Publikováno v:
Proceedings of the 1st AUDICTIVE Conference.-June 19-22, 2023, RWTH Aachen University, Aachen, Germany
1st AUDICTIVE Conference
1st AUDICTIVE Conference, Jun 2023, AACHEN, Germany. pp.77
1st AUDICTIVE Conference
1st AUDICTIVE Conference, Jun 2023, AACHEN, Germany. pp.77
International audience; Distance perception in an audio content has long been investigated as sources’ distance, how far the source is from the perspective of a listener. Yet, an audio spatial scene is not only perceived as a sum of punctual audio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3430::99fe5081b87fac03ecdd9d96478d939d
https://hal.science/hal-04138813/file/audictive-paper-fleurence.pdf
https://hal.science/hal-04138813/file/audictive-paper-fleurence.pdf
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
https://doi.org/10.1109/cleoe-eqec.2017.8087556
Autor:
Michael Fowler
Publikováno v:
Architectures of Sound
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b858d56cb338f1071b4c3742772a8a77
https://doi.org/10.1515/9783035613292-005
https://doi.org/10.1515/9783035613292-005
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
https://doi.org/10.1364/cleo_qels.2017.fm4f.7
Conference
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