Artificial gravity field, astrophysical analogues, and topological phase transitions in strained topological semimetals
Artificial gravity field, astrophysical analogues, and topological phase transitions in strained topological semimetals
Effective gravity and gauge fields are emergent properties intrinsic for low-energy quasiparticles in topological semimetals. Here, taking two Dirac semimetals as examples, we demonstrate that applied lattice strain can generate warped spacetime, with fascinating analogues in astrophysics. Particularly, we study the possibility of simulating black-hole/white-hole event horizons and gravitational lensing …