Modified Bose-Einstein condensation in an optical quantum gas

Carl Ulrich Mattschas; Mario Vretenar; Chris Toebes; Jan Andre Klärs

Modified Bose-Einstein condensation in an optical quantum gas

Carl Ulrich Mattschas, Mario Vretenar, Chris Toebes, Jan Andre Klärs

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Abstract

Open quantum systems can be systematically controlled by making changes to their environment. A prerequisite for a deliberate control of an open quantum system is a sufficient understanding of its underlying physical mechanisms. Here, we investigate the Bose-Einstein condensation of a photonic Bose gas in an environment with controlled dissipation and feedback realized by a potential landscape that effectively acts as a Mach-Zehnder interferometer. Our measurements offer a highly systematic picture of Bose-Einstein condensation under non-equilibrium conditions. We show that the condensation process becomes an interplay between minimizing the energy of the condensate, minimizing the particle losses and maximizing the constructive feedback from the environment.

[1] M. Vretenar et al., arXiv:2105.10708 [cond-mat.quant-gas]

Original language	English
Publication status	Published - 14 Oct 2021
Event	Condensates of light 2022 - Lorentz Center@Oort, Leiden, Netherlands, Leiden, Netherlands Duration: 4 Apr 2022 → 8 Apr 2022 https://www.lorentzcenter.nl/condensates-of-light-2022.html#:~:text=4%20%2D%208%20April%202022&text=More%20recently%2C%20Bose%2DEinstein%20condensation,the%20lowest%20energetic%20cavity%20mode.

Conference

Conference	Condensates of light 2022
Country/Territory	Netherlands
City	Leiden
Period	4/04/22 → 8/04/22
Internet address	https://www.lorentzcenter.nl/condensates-of-light-2022.html#:~:text=4%20%2D%208%20April%202022&text=More%20recently%2C%20Bose%2DEinstein%20condensation,the%20lowest%20energetic%20cavity%20mode.

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title = "Modified Bose-Einstein condensation in an optical quantum gas",

abstract = "Open quantum systems can be systematically controlled by making changes to their environment. A prerequisite for a deliberate control of an open quantum system is a sufficient understanding of its underlying physical mechanisms. Here, we investigate the Bose-Einstein condensation of a photonic Bose gas in an environment with controlled dissipation and feedback realized by a potential landscape that effectively acts as a Mach-Zehnder interferometer. Our measurements offer a highly systematic picture of Bose-Einstein condensation under non-equilibrium conditions. We show that the condensation process becomes an interplay between minimizing the energy of the condensate, minimizing the particle losses and maximizing the constructive feedback from the environment.[1] M. Vretenar et al., arXiv:2105.10708 [cond-mat.quant-gas]",

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T1 - Modified Bose-Einstein condensation in an optical quantum gas

AU - Mattschas, Carl Ulrich

AU - Vretenar, Mario

AU - Toebes, Chris

AU - Klärs, Jan Andre

PY - 2021/10/14

Y1 - 2021/10/14

N2 - Open quantum systems can be systematically controlled by making changes to their environment. A prerequisite for a deliberate control of an open quantum system is a sufficient understanding of its underlying physical mechanisms. Here, we investigate the Bose-Einstein condensation of a photonic Bose gas in an environment with controlled dissipation and feedback realized by a potential landscape that effectively acts as a Mach-Zehnder interferometer. Our measurements offer a highly systematic picture of Bose-Einstein condensation under non-equilibrium conditions. We show that the condensation process becomes an interplay between minimizing the energy of the condensate, minimizing the particle losses and maximizing the constructive feedback from the environment.[1] M. Vretenar et al., arXiv:2105.10708 [cond-mat.quant-gas]

AB - Open quantum systems can be systematically controlled by making changes to their environment. A prerequisite for a deliberate control of an open quantum system is a sufficient understanding of its underlying physical mechanisms. Here, we investigate the Bose-Einstein condensation of a photonic Bose gas in an environment with controlled dissipation and feedback realized by a potential landscape that effectively acts as a Mach-Zehnder interferometer. Our measurements offer a highly systematic picture of Bose-Einstein condensation under non-equilibrium conditions. We show that the condensation process becomes an interplay between minimizing the energy of the condensate, minimizing the particle losses and maximizing the constructive feedback from the environment.[1] M. Vretenar et al., arXiv:2105.10708 [cond-mat.quant-gas]

M3 - Poster

T2 - Condensates of light 2022

Y2 - 4 April 2022 through 8 April 2022

ER -

Modified Bose-Einstein condensation in an optical quantum gas

Abstract

Conference

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