%0 Generic %1 elsayed2017diagnosing %A Elsayed, Tarek A. %A Streltsov, Alexej I. %D 2017 %K quantum_gases %T Diagnosing Optical Lattices With Momentum Boosts %U http://arxiv.org/abs/1705.10643 %X We present a novel technique to diagnose the condensate fraction in an optical lattice of weakly-interacting bosons based on the dynamics of the trapped atoms under the influence of a momentum kick. It is shown using the Multi-Configuration Time Dependent Hartree method for Bosons (MCTDHB) that the two extreme cases of the superfluid and Mott insulator states exhibit different behaviors when the lattice is briefly tilted. The current induced by the momentum boost caused by the tilt depends directly on the amount of phase coherence between the lattice sites which in turn depends on the condensate fraction. The potential of using the relation between the frequency of the induced current and the amount of momentum boost imparted to the system in magnetic field gradiometery is also discussed.

@misc{elsayed2017diagnosing, abstract = {We present a novel technique to diagnose the condensate fraction in an optical lattice of weakly-interacting bosons based on the dynamics of the trapped atoms under the influence of a momentum kick. It is shown using the Multi-Configuration Time Dependent Hartree method for Bosons (MCTDHB) that the two extreme cases of the superfluid and Mott insulator states exhibit different behaviors when the lattice is briefly tilted. The current induced by the momentum boost caused by the tilt depends directly on the amount of phase coherence between the lattice sites which in turn depends on the condensate fraction. The potential of using the relation between the frequency of the induced current and the amount of momentum boost imparted to the system in magnetic field gradiometery is also discussed.}, added-at = {2017-06-20T12:56:28.000+0200}, author = {Elsayed, Tarek A. and Streltsov, Alexej I.}, biburl = {https://www.bibsonomy.org/bibtex/283baa22f416b008c0eebafbf1935b69d/jschnars}, description = {[1705.10643] Diagnosing Optical Lattices With Momentum Boosts}, interhash = {c90c3788047e14a9850a80bf852fca36}, intrahash = {83baa22f416b008c0eebafbf1935b69d}, keywords = {quantum_gases}, note = {cite arxiv:1705.10643Comment: 6 pages, 5 figures}, timestamp = {2017-06-20T12:56:28.000+0200}, title = {Diagnosing Optical Lattices With Momentum Boosts}, url = {http://arxiv.org/abs/1705.10643}, year = 2017 }