  Pseudogap in hole-doped cuprate superconductors is acknowledged as a possible
key to understanding their ground normal state, however, existing pseudogap
models have essential inconsistencies with experiments. In our approach
pseudogap emerges due to impact of autolocalized carriers on stationary states
of delocalized ones and topology of the 2D hole-like dispersion. Autolocalized
carriers create potential which transforms Bloch quasiparticles into
distributed wave packets (DWPs) with different momentums in areas with
different potential. Topology of hole-like constant energy curves in
2D-conducting cuprates forbids DWPs with average momentums near antinode.
Manifestation of permitted DWPs in ARPES spectra demonstrates all known
pseudogap features including midpoint shift, giant broadening and Fermi
momentum misalignment. Calculated doping dependence of the pseudogap width and
onset temperature agrees with experiments. The obtained ground normal state of
the hole-doped cuprates, in which all the doped holes are autolocalized until
high doping is reached and near-antinodal electron DWPs are absent, explains
Fermi surface reconstruction from small electron pocket to large hole-like
Fermi surface observed in quantum oscillation measurements. Our results open a
possibility of creating systems with artificial pseudogap and switchable
density of states on the base of highly polarizable layered structures with 2D
conductivity and hole-like dispersion.
