Quantum Spin Dynamics of Mode-Squeezed Luttinger Liquids in Two-Component Atomic Gases

2007/09/30 by Artur Widera, Stefan Trotzky, Patrick Cheinet +6 · 7 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Bose gas #Bose–Einstein condensate #Cold Atom Physics and Bose-Einstein Condensates #Feshbach resonance #Luttinger liquid #Non-equilibrium thermodynamics #Physics #Quantum #Quantum dynamics #Quantum mechanics #Quantum, superfluid, helium dynamics #Spin (aerodynamics) #Time evolution #cond-mat.other

paper · pdf · doi:10.1103/physrevlett.100.140401

published as Phys. Rev. Lett. 100, 140401 (2008) · 4 pages, 3 figures Updated version, minor changes

openalex publication_date 2008/04/08 · arxiv created 2008/04/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We report on the observation of many-body spin dynamics of interacting, one-dimensional (1D) ultracold bosonic gases with two spin states. By controlling the nonlinear atomic interactions close to a Feshbach resonance we are able to induce a phase diffusive many-body spin dynamics of the relative phase between the two components. We monitor this dynamical evolution by Ramsey interferometry, supplemented by a novel, many-body echo technique, which unveils the role of quantum fluctuations in 1D. 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 nonequilibrium evolution of one-dimensional many-body quantum systems.

Citations

• There are no Goldstone bosons in two dimensions
• Instabilities in Binary Mixtures of One-Dimensional Quantum Degenerate Gases
• Relative phase of two Bose-Einstein condensates
• Existence of Long-Range Order in One and Two Dimensions
• Absence of Ferromagnetism or Antiferromagnetism in One- or Two-Dimensional Isotropic Heisenberg Models
• Non-equilibrium coherence dynamics in one-dimensional Bose gases
• Squeezed spin states
• Bosonizing one-dimensional cold atomic gases

Cited by

• Atom-number squeezing and bipartite entanglement of two-component Bose–Einstein condensates: analytical results
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• Coherent manipulation of Bose–Einstein condensates with state-dependent microwave potentials on an atom chip
• Quantum interferometry for rotation sensing in an optical microresonator
• Quantum correlations and entanglement in far-from-equilibrium spin systems
• Loschmidt Echo and the Many-Body Orthogonality Catastrophe in a Qubit-Coupled Luttinger Liquid
• Temporal fluctuations in the bosonic Josephson junction as a probe for phase space tomography