3 papers
quant-ph2021
Continuum analogues of excited-state quantum phase transitions
Pavel Stránský, Milan Šindelka, Pavel Cejnar
Following our work [Phys. Rev. Lett. 125, 020401 (2020)], we discuss a semiclassical description of one-dimensional quantum tunneling through multibarrier potentials in terms of co…
quant-ph2020
Complex density of continuum states in resonant quantum tunneling
Pavel Stránský, Milan Šindelka, Michal Kloc +1
We introduce a complex-extended continuum level density and apply it to one-dimensional scattering problems involving tunneling through finite-range potentials. We show that the re…
cond-mat.mes-hall2006
Trapping of cold atoms by the quadrupole force
Nimrod Moiseyev, Milan Sindelka, Lorenz S. Cederbaum
Cold atoms are traditionally trapped by the dipole force in periodically spaced potential wells induced by the standing laser field. We derive here a theory beyond the conventional…