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pro vyhledávání: '"Walker, Benjamin T."'
Autor:
Dhar, Himadri S., Rodrigues, João D., Walker, Benjamin T., Oulton, Rupert F., Nyman, Robert A., Mintert, Florian
Publikováno v:
Phys. Rev. A 102, 053517 (2020)
The driven-dissipative nature of light-matter interaction inside a multimode, dye-filled microcavity makes it an ideal system to study nonequilibrium phenomena, such as transport. In this work, we investigate how light is efficiently transported insi
Externí odkaz:
http://arxiv.org/abs/2009.00094
Autor:
Rodrigues, João D., Dhar, Himadri S., Walker, Benjamin T., Smith, Jason M., Oulton, Rupert F., Mintert, Florian, Nyman, Robert A.
Publikováno v:
Phys. Rev. Lett. 126, 150602 (2021)
Phase transitions, being the ultimate manifestation of collective behaviour, are typically features of many-particle systems only. Here, we describe the experimental observation of collective behaviour in small photonic condensates made up of only a
Externí odkaz:
http://arxiv.org/abs/2006.12298
Autor:
Nyman, Robert A., Walker, Benjamin T.
This document takes existing derivations of scattering loss from rough surfaces, and makes them more accessible as a tool to derive the total scattering loss from a rough mirror given its true surface profile. It does not contain any new results and
Externí odkaz:
http://arxiv.org/abs/2005.05201
Autor:
Walker, Benjamin T., Rodrigues, João D., Dhar, Himadri S., Oulton, Rupert F., Mintert, Florian, Nyman, Robert A.
Publikováno v:
Nat Commun 11, 1390 (2020)
While equilibrium phase transitions are well described by a free-energy landscape, there are few tools to describe general features of their non-equilibrium counterparts. On the other hand, near-equilibrium free-energies are easily accessible but the
Externí odkaz:
http://arxiv.org/abs/1908.05568
Publikováno v:
Phys. Rev. A 100, 053828 (2019)
Photonic condensates are complex systems exhibiting phase transitions due to the interaction with their molecular environment. Given the macroscopic number of molecules that form a reservoir of excitations, numerical simulations are expensive, even f
Externí odkaz:
http://arxiv.org/abs/1809.08774
Publikováno v:
Phys. Rev. Lett. 123, 203602 (2019)
We investigate the response of a photonic gas interacting with a reservoir of pumped dye-molecules to quenches in the pump power. In addition to the expected dramatic critical slowing down of the equilibration time around phase transitions we find ex
Externí odkaz:
http://arxiv.org/abs/1809.08772
Autor:
Walker, Benjamin T., Flatten, Lucas C., Hesten, Henry J., Mintert, Florian, Hunger, David, Trichet, Aurélien A. P., Smith, Jason M., Nyman, Robert A.
Publikováno v:
Nature Physics vol.14, pp1173-1177 (2018)
Coherence is a defining feature of quantum condensates. These condensates are inherently multimode phenomena and in the macroscopic limit it becomes extremely difficult to resolve populations of individual modes and the coherence between them. In thi
Externí odkaz:
http://arxiv.org/abs/1711.11087
Autor:
Nyman, Robert A., Walker, Benjamin T.
Photons can come to thermal equilibrium at room temperature by scattering multiple times from a fluorescent dye. By confining the light and dye in a microcavity, a minimum energy is set and the photons can then show Bose-Einstein condensation. We pre
Externí odkaz:
http://arxiv.org/abs/1706.09645
Publikováno v:
Phys. Rev. A, vol. 94, 063812 (2016)
We have observed momentum- and position-resolved spectra and images of the photoluminescence from thermalised and condensed dye-microcavity photons. The spectra yield the dispersion relation and the potential energy landscape for the photons. From th
Externí odkaz:
http://arxiv.org/abs/1609.01554
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