8 citations · 8 across the 1 of their papers we have counts for
4 papers
Superluminal modes in a quantum field simulator for cosmology from analog trans-Planckian physics
Christian F. Schmidt, Stefan Floerchinger
The quantum-field-theoretic description for the U(1)-Goldstone boson of a scalar Bose-Einstein condensate with time-dependent contact interactions is developed beyond the acoustic…
Emergent quantum field theories on curved spacetimes in spinor Bose-Einstein condensates: from scalar to Proca fields
Christian F. Schmidt, Simon Brunner, Stefan Floerchinger
We consider excitations of a spin-1 Bose-Einstein-condensate (BEC) in the vicinity of different mean-field configurations and derive mappings to emergent relativistic quantum field…
Experimental particle production in time-dependent spacetimes: a one-dimensional scattering problem
Marius Sparn, Elinor Kath, Nikolas Liebster +7
We experimentally study cosmological particle production in a two-dimensional Bose-Einstein condensate, whose density excitations map to an analog cosmology. The expansion of space…
Cosmological particle production in a quantum field simulator as a quantum mechanical scattering problem
Christian F. Schmidt, Álvaro Parra-López, Mireia Tolosa-Simeón +7
The production of quantum field excitations or particles in cosmological spacetimes is a hallmark prediction of curved quantum field theory. The generation of cosmological perturba…