![Ιδρυματικό Αποθετήριο [SANDBOX]](images/dias.logo.png "Ιδρυματικό Αποθετήριο [SANDBOX]"){kind=logo}
Ιδρυματικό Αποθετήριο [SANDBOX]
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
EN
|
EL
| URI: | http://purl.tuc.gr/dl/dias/70B4B919-1F81-4187-824E-0509FF282F5E | ||
| Έτος | 2014 | ||
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | ||
| Άδεια Χρήσης |
|
||
| Βιβλιογραφική Αναφορά | P. A. Ivanov, N. I. Karchev, N. V. Vitanov and D. G. Angelakis, "Quantum simulation of superexchange magnetism in linear ion crystals" Phys. Rew. A, vol. 90, no. 1, Jul. 2014. doi: http://dx.doi.org/10.1103/PhysRevA.90.012325 https://doi.org/10.1103/PhysRevA.90.012325 | ||
| Εμφανίζεται στις Συλλογές |
We present a system for the simulation of Heisenberg models with spins s=12 and s=1 with a linear crystal of trapped ions. We show that the laser-ion interaction induces a Jaynes-Cummings-Hubbard interaction between the atomic V-type level structure and the two phonon species. In the strong-coupling regime the collective atom and phonon excitations become localized at each lattice site and form an effective spin system with varying length. We show that the quantum-mechanical superexchange interaction caused by the second-order phonon hopping processes creates a Heisenberg-type coupling between the individual spins. Trapped ions allow to control the superexchange interactions by adjusting the trapping frequencies, the laser intensity, and the detuning.
Copyright © DIAS 2013
