4 papers
Emergence of volume-law scaling for entanglement negativity from the Hawking radiation of analogue black holes
S. Mahesh Chandran, Uwe R. Fischer
The quantum information content of Hawking radiation holds the key to understanding black-hole evaporation and the fate of unitarity. Motivated by recent advances in cold-atom expe…
Expansion-contraction duality breaking in a Planck-scale sensitive cosmological quantum simulator
S. Mahesh Chandran, Uwe R. Fischer
We propose the experimental simulation of cosmological perturbations governed by a Planck-scale induced Lorentz violating dispersion, aimed at distinguishing between early-universe…
Quantum nonlinear effects in the number-conserving analogue gravity of Bose-Einstein condensates
Kunal Pal, Uwe R. Fischer
We consider the quantum dynamics of Bose-Einstein condensates at absolute zero, and demonstrate that an analogue gravity model going beyond the standard linearized analogue gravity…
Probing Penrose-type singularities in sonic black holes
Satadal Datta, Uwe R. Fischer
Addressing the general question whether Penrose singularities physically exist inside black holes, we investigate the problem in the context of an analogue system, a flowing labora…