The influence of spacetime curvature on quantum emission in optical  analogues to gravity

Jacquet, Maxime J.; Koenig, Friedrich

doi:10.21468/scipostphyscore.3.1.005

Cited by 19 publications

(16 citation statements)

References 68 publications

(163 reference statements)

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“…4 Following Dardashti, Hartmann 1 See e.g. Unruh ([2014]), Steinhauer ([2016]), Jacquet and König ([2020]), Weinfurtner et al ([2011]) and Rousseaux et al ([2008]). The group at UBC is led by Unruh himself, and works collaboratively with the group at Nottingham.…”

Section: Analogue Experiments and Universality Argumentsmentioning

confidence: 99%

Putting theory in its place: The relationship between universality arguments and empirical constraints

Field¹

2021

The British Journal for the Philosophy of Science

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In light of its empirical undetectability, physicists have attempted to establish Hawking radiation as universal-as a phenomenon that should appear regardless of the possible details of quantum gravity, whatever those details might be. But, as pointed out in a recent article by Gryb, Palacios, and Thébault (2019), these universality arguments for Hawking radiation seem broadly unconvincing compared to the Wilsonian renormalization-group universality arguments for condensed matter physics.Motivated by their apparent failure, compared with the overwhelming success of universality arguments in so many other contexts, I address the question: in which situations should we expect to be able to construct successful universality arguments? In other words, which situations are 'universality-argument-apt'? I distinguish between two notions of success for a universality argument: 'strength' and 'relevance'. I argue that we should only expect to be able to construct universality arguments that are successful in the sense of being significantly relevant to a given domain if 1 we know enough about how that domain's micro-physics is structured, or 2 we are able to empirically test the domain's macro-behaviour, or if we are in both situations at once. These conditions are useful, most obviously, as a clarification of what universality arguments are capable of. But I argue that they are also useful for two less direct reasons: they clarify the status of analogue experimentation, and thereby show us where we stand in our search for empirical confirmation of Hawking radiation.

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Section: Analogue Experiments and Universality Argumentsmentioning

confidence: 99%

Putting theory in its place: The relationship between universality arguments and empirical constraints

Field¹

2021

The British Journal for the Philosophy of Science

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“…Furthermore, a measure of the ‘quantumness of the output state’ would discriminate correlations resulting from spontaneous emission from those resulting from noise (although additional noise may degrade the signal-to-noise ratio in the measurement of Hawking correlations). To this end, one could use various measures such as the Perez–Horodecki criterion [47,51,53–58] or the logarithmic negativity [36] to determine whether the output state is non-separable. Importantly, entanglement monotones such as the logarithmic negativity would provide unprecedented insight into the quantum statistics of Hawking radiation.…”

Section: One- and Two-dimensional Horizonsmentioning

confidence: 99%

“…3When considering excitations at all possible k s, the analogy with wave motion on curved space–times is more complicated but can still be established on kinematic grounds [36]. …”

mentioning

confidence: 99%

Polariton fluids for analogue gravity physics

Jacquet

Boulier

Claude

et al. 2020

Phil. Trans. R. Soc. A.

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Analogue gravity enables the study of fields on curved space–times in the laboratory. There are numerous experimental platforms in which amplification at the event horizon or the ergoregion has been observed. Here, we demonstrate how optically generating a defect in a polariton microcavity enables the creation of one- and two-dimensional, transsonic fluid flows. We show that this highly tuneable method permits the creation of horizons. Furthermore, we present a rotating geometry akin to the water-wave bathtub vortex. These experiments usher in the possibility of observing stimulated as well as spontaneous amplification by the Hawking, Penrose and Zeld’ovich effects in fluids of light. This article is part of a discussion meeting issue ‘The next generation of analogue gravity experiments’.

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“…Hawking radiation is a universal geometric effect that emerges because of conversion of modes at a horizon, regardless of the microscopic physics that create the background space–time geometry [12]. The same (generalized) derivation applies for both astrophysical black holes and analogue systems [12,25,104–109]. This established universality proved insightful for both gravity and optics (arguably solving the trans-Planckian problem and discovering negative frequencies in optics are two examples [13,14]).…”

Section: It Is Just Opticsmentioning

confidence: 99%

Optical analogues of black-hole horizons

Rosenberg

2020

Phil. Trans. R. Soc. A.

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Hawking radiation is unlikely to be measured from a real black hole, but can be tested in laboratory analogues. It was predicted as a consequence of quantum mechanics and general relativity, but turned out to be more universal. A refractive index perturbation produces an optical analogue of the black-hole horizon and Hawking radiation that is made of light. We discuss the central and recent experiments of the optical analogue, using hands-on physics. We stress the roles of classical fields, negative frequencies, ‘regular optics’ and dispersion. Opportunities and challenges ahead are briefly mentioned. This article is part of a discussion meeting issue ‘The next generation of analogue gravity experiments’.

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The influence of spacetime curvature on quantum emission in optical analogues to gravity

Cited by 19 publications

References 68 publications

Putting theory in its place: The relationship between universality arguments and empirical constraints

Putting theory in its place: The relationship between universality arguments and empirical constraints

Polariton fluids for analogue gravity physics

Optical analogues of black-hole horizons

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