Speaker
Moritz Linnebacher
Description
Isolated, dipole–dipole-interacting Rydberg atoms realise effective pseudospin Hamiltonians dominated by exchange interactions. Reversing the sign of the exchange term enables time-reversal protocols and thus provides a route towards measuring out-of-time-order correlators (OTOCs). However, additional higher-order terms in the effective Hamiltonian, arising from couplings to off-resonant atomic states, prevent an exact inversion of the Hamiltonian and therefore an exact reversal of the dynamics. We investigate how global pulse sequences can be used to average out these unwanted contributions while preserving, or controllably transforming, the desired exchange interaction.
Author
Co-authors
Dr
E. Braun
(Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany)
Dr
G. Zürn
(Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany)
Mr
M. Lotze
(Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany)
Dr
M. Menashes
(Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany)
Prof.
M. Weidemüller
(Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany)
Mr
V. Dhodapkar
(Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany)