6533b838fe1ef96bd12a3d0f
RESEARCH PRODUCT
Quantum Spin Dynamics of Mode-Squeezed Luttinger Liquids in Two-Component Atomic Gases
Mikhail D. LukinStefan TrotzkySimon FöllingEugene DemlerFabrice GerbierPatrick CheinetVladimir GritsevArtur WideraImmanuel Blochsubject
PhysicsCondensed Matter::Quantum GasesCondensed matter physicsTime evolutionGeneral Physics and AstronomyFOS: Physical sciencesSpin engineering01 natural sciences010305 fluids & plasmasCondensed Matter - Other Condensed MatterRamsey interferometryLuttinger liquidQuantum mechanics[PHYS.COND.CM-GEN]Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other]0103 physical sciencesMathematics::Metric Geometry010306 general physicsFeshbach resonanceSpin (physics)Quantum fluctuationSqueezed coherent stateOther Condensed Matter (cond-mat.other)description
We report on the observation of the phase dynamics of interacting one-dimensional ultracold bosonic gases with two internal degrees of freedom. By controlling the non-linear atomic interactions close to a Feshbach resonance we are able to induce a phase diffusive many-body spin dynamics. We monitor this dynamical evolution by Ramsey interferometry, supplemented by a novel, many-body echo technique. We find that the time evolution of the system is well described by a Luttinger liquid initially prepared in a multimode squeezed state. Our approach allows us to probe the non-equilibrium evolution of one-dimensional many-body quantum systems.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-09-13 |