Derives an effective relativistic QFT on a dispersive cosmological spacetime from a BEC with time-dependent scattering length, showing trans-Planckian damping that violates scale invariance in analog expanding universes but converges to a new UV plateau.
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Derives emergent QFTs including Proca fields from spinor BEC excitations on bi- or tri-metric curved spacetimes, enabling potential simulation of cosmological Proca particle production.
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Superluminal modes in a quantum field simulator for cosmology from analog trans-Planckian physics
Derives an effective relativistic QFT on a dispersive cosmological spacetime from a BEC with time-dependent scattering length, showing trans-Planckian damping that violates scale invariance in analog expanding universes but converges to a new UV plateau.
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Emergent quantum field theories on curved spacetimes in spinor Bose-Einstein condensates: from scalar to Proca fields
Derives emergent QFTs including Proca fields from spinor BEC excitations on bi- or tri-metric curved spacetimes, enabling potential simulation of cosmological Proca particle production.