%0 Journal Article %1 PhysRevLett.109.025303 %A Peter, D. %A Müller, S. %A Wessel, S. %A Büchler, Hans Peter %D 2012 %I American Physical Society %J Phys. Rev. Lett. %K %N 2 %P 025303 %R 10.1103/PhysRevLett.109.025303 %T Anomalous Behavior of Spin Systems with Dipolar Interactions %U https://link.aps.org/doi/10.1103/PhysRevLett.109.025303 %V 109 %X We study the properties of spin systems realized by cold polar molecules interacting via dipole-dipole interactions in two dimensions. Using a spin wave theory, that allows for the full treatment of the characteristic long-distance tail of the dipolar interaction, we find several anomalous features in the ground state correlations and the spin wave excitation spectrum, which are absent in their counterparts with short-range interaction. The most striking consequence is the existence of true long-range order at finite temperature for a two-dimensional phase with a broken U(1) symmetry.

@article{PhysRevLett.109.025303, abstract = {We study the properties of spin systems realized by cold polar molecules interacting via dipole-dipole interactions in two dimensions. Using a spin wave theory, that allows for the full treatment of the characteristic long-distance tail of the dipolar interaction, we find several anomalous features in the ground state correlations and the spin wave excitation spectrum, which are absent in their counterparts with short-range interaction. The most striking consequence is the existence of true long-range order at finite temperature for a two-dimensional phase with a broken U(1) symmetry.}, added-at = {2023-08-31T14:17:38.000+0200}, author = {Peter, D. and Müller, S. and Wessel, S. and Büchler, Hans Peter}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2333f4dc525043aa4515ae8f7f00ea9da/puma-wartung}, doi = {10.1103/PhysRevLett.109.025303}, interhash = {b66569343364b24f4cb8c8836b774742}, intrahash = {333f4dc525043aa4515ae8f7f00ea9da}, journal = {Phys. Rev. Lett.}, keywords = {}, month = jul, number = 2, numpages = {5}, pages = 025303, publisher = {American Physical Society}, timestamp = {2023-08-31T12:17:38.000+0200}, title = {Anomalous Behavior of Spin Systems with Dipolar Interactions}, url = {https://link.aps.org/doi/10.1103/PhysRevLett.109.025303}, volume = 109, year = 2012 }