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Analogue Gravity
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Analogue gravity is a research programme that explores analogues of general relativistic gravitational fields within other physical systems, particularly but not exclusively in condensed matter systems, with the aim of gaining new insights into related problems. Analogue models of gravity boast a long and distinguished history, dating back to the early years of general relativity. This review article delves into the history, aims, results, and future prospects of various analogue models. We begin by presenting a particularly simple example of an analogue model, then traverse the rich history and complex array of models discussed in the literature. The last decade has witnessed significant and sustained advances in analogue gravity, resulting in hundreds of published articles, workshops, and books. The future of the analogue gravity programme looks promising, with rapid technological advances on the experimental front and the potential for analogue models to inspire innovative approaches to the problem of quantum gravity on the theoretical front. Most of all, these recent years have seen the rise of an unprecedented collaboration and interplay between different communities that we believe will set a new standard for interdisciplinary research in the years to come.
Forward citations
Cited by 10 Pith papers
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Optimal frequency scales for probing black-hole geometries
A Gaussian pulse extracts the most black-hole metric information when its width is about the inverse square root of the effective-potential maximum, not when it is as narrow as possible.
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On Integrable Structures on Non-compact Boundaries in Three-Dimensional Gravity
In the diagonal (Cartan) sector of AdS3 gravity, the radial flow of the quasi-local stress tensor satisfies an exact T Tbar-like equation, while the boundary time evolution forms an integrable bi-Hamiltonian hierarchy.
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Macroscopic Black-Hole Remnants in a Nonlocal Field Theory: Towards Hawking Radiation in SFT
In a smeared massless scalar on dynamical black hole, outgoing particle number drops to zero after scrambling time due to SFT nonlocality, implying macroscopic remnant.
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Bose polarons as relativistic Unruh-DeWitt detectors: Entanglement harvesting from Bose-Einstein condensates
A trapped impurity in a BEC is shown to be a controllable Unruh-DeWitt detector, with explicit 39K/87Rb parameters for observing entanglement harvesting.
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Doppler shifted Hawking radiation from acoustic black holes in ultra-relativistic heavy-ion collisions
Even when the central flow is boost invariant, large-rapidity deviations can slow the acoustic horizon's recession, giving finite redshift Hawking radiation that may affect momentum distributions.
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Warp Drive in a De Sitter Universe
A warp bubble moving with the Hubble flow in de Sitter space can have non-negative Eulerian energy density and satisfy averaged energy conditions.
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Delay-Independent Stability of Nonlinear Delay Differential Equations via Isospectral Reduction
Claims a delay-independent global exponential stability criterion for a broad class of nonlinear nonautonomous delay differential equations using isospectral reduction of an associated sequence of matrices.
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Simulating Hawking radiation in quantum many-body systems: deviations from the thermal spectrum
A bosonic hopping model that emulates quantum fields in curved spacetime is shown to reproduce the non-thermal E^2 corrections to Hawking radiation predicted by the tunneling method.
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Analog charged black hole formation via percolation: Exploring cosmic censorship and Hoop conjecture
A Fock-space percolation model of a chiral spin chain is claimed to reproduce charged-black-hole scaling exponents, with exponential cluster growth proposed as the key formation criterion.
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Dynamical analog spacetimes from nonlinear perturbations in a topological material
A nonlinear acoustic metric and microkelvin Hawking temperature are claimed for Berry-curvature-modified graphene electron flow, but the derivation is incomplete and the temperature has inconsistent units.
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