From cosmology to cold atoms: observation of Sakharov oscillations in a quenched atomic superfluid. Acoustic analog to the dynamical Casimir effect in a Bose–Einstein condensate. Accurate determination of Hubble attenuation and amplification in expanding and contracting cold-atom universes. Phonon pair creation by inflating quantum fluctuations in an ion trap. Observation of thermal Hawking radiation and its temperature in an analogue black hole. A rapidly expanding Bose–Einstein condensate: an expanding universe in the lab. Observation of self-amplifying Hawking radiation in an analogue black-hole laser. Realization of a sonic black hole analog in a Bose–Einstein condensate. Numerical observation of Hawking radiation from acoustic black holes in atomic Bose–Einstein condensates. Measurement of stimulated Hawking emission in an analogue system. Fiber-optical analog of the event horizon. The next generation of analogue gravity experiments. Analogue cosmological particle creation: quantum correlations in expanding Bose–Einstein condensates. Recreating fundamental effects in the laboratory?. Analog model of a Friedmann–Robertson–Walker universe in Bose–Einstein condensates: application of the classical field method. “Cosmological” quasiparticle production in harmonically trapped superfluid gases. Probing semiclassical analog gravity in Bose–Einstein condensates with widely tunable interactions. (eds) Artificial Black Holes (World Scientific Publishing, 2002).īarceló, C., Liberati, S. Sonic analog of gravitational black holes in Bose–Einstein condensates. Sonic analogue of black holes and the effects of high frequencies on black hole evaporation. Experimental black-hole evaporation? Phys. in Advances in Atomic, Molecular, and Optical Physics Vol. Dynamical symmetry and breathers in a two-dimensional Bose gas. Introduction to Quantum Effects in Gravity (Cambridge Univ. Quantum Fields in Curved Space (Cambridge Monographs on Mathematical Physics, Cambridge Univ. Quantized fields and particle creation in expanding universes. The proper vibrations of the expanding universe. In the future, straightforward upgrades offer the possibility to enter unexplored regimes that give further insight into relativistic quantum field dynamics. This benchmarks and thereby establishes a quantum field simulator of a new class. We find quantitative agreement with analytical predictions for different curvatures in time and space. We explicitly show the realization of spacetimes with positive and negative spatial curvature by wave-packet propagation and observe particle-pair production in controlled power-law expansion of space, using Sakharov oscillations to extract amplitude and phase information of the produced state. Here we demonstrate such a quantum field simulator in a two-dimensional Bose–Einstein condensate with a configurable trap 6, 7 and adjustable interaction strength to implement this model system. Even the reduced problem of a scalar quantum field in an explicitly time-dependent spacetime metric is a theoretical challenge 2, 3, 4, 5, and thus a quantum field simulator can lead to insights. The description of subsequent dynamics and related questions in cosmology requires an understanding of the quantum fields of the standard model and dark matter in curved spacetime. In most cosmological models, rapid expansion of space marks the first moments of the Universe and leads to the amplification of quantum fluctuations 1.
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