Deforming the Kitaev chain ground state with imaginary-time evolution under 1/r^α couplings produces α-dependent infrared regimes without sharp phase transitions at non-zero deformation.
Entanglementinthexyspinchain.Journal of Physics A: Mathematical and General, 38(13):2975, mar 2005
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Long-range deformations in Gaussian States
Deforming the Kitaev chain ground state with imaginary-time evolution under 1/r^α couplings produces α-dependent infrared regimes without sharp phase transitions at non-zero deformation.