Measuring correlations of cold atom systems using multiple quantum probes
arXiv:1610.02795 · doi:10.1103/PhysRevA.94.053634
Abstract
We present a non-destructive method to probe a complex quantum system using multiple impurity atoms as quantum probes. Our protocol provides access to different equilibrium properties of the system by changing its coupling to the probes. In particular, we show that measurements with two probes reveal the system's non-local two-point density correlations, for probe-system contact interactions. We illustrate our findings with analytic and numerical calculations for the Bose-Hubbard model in the weakly and strongly-interacting regimes, under conditions relevant to ongoing experiments in cold atom systems.
11 pages, 6 figures. v2: enhanced discussion in light of other correlation measurement methods available; matches published version
References in corpus (20)
- Many-Body Physics with Ultracold Gases
- Thermalization and its mechanism for generic isolated quantum systems
- Atom Interferometers
- Single-Atom Resolved Fluorescence Imaging of an Atomic Mott Insulator
- Non-equilibrium coherence dynamics in one-dimensional Bose gases
- Experimental Observation of a Generalized Gibbs Ensemble
- Spatial quantum noise interferometry in expanding ultracold atom clouds
- Controlled exchange interaction between pairs of neutral atoms in an optical lattice
- A Quantum Gas Microscope for Fermionic Atoms
- A trapped single ion inside a Bose-Einstein condensate
- Localization of bosonic atoms by fermionic impurities in a 3d optical lattice
- Advances on Tensor Network Theory: Symmetries, Fermions, Entanglement, and Holography
- Site-resolved imaging of ytterbium atoms in a two-dimensional optical lattice
- Quantum-gas microscopes - A new tool for cold-atom quantum simulators
- Coherent Interaction of a Single Fermion with a Small Bosonic Field
- Light scattering from ultracold atoms in optical lattices as an optical probe of quantum statistics
- Non-destructive selective probing of phononic excitations in a cold Bose gas using impurities
- Are the Tonks regimes in the continuum and on the lattice truly equivalent?
- Probing Matter-Field and Atom-Number Correlations in Optical Lattices by Global Nondestructive Addressing
- Matter-wave scattering from interacting bosons in an optical lattice
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- Impurity dephasing in a Bose-Hubbard model
- Universal scaling of a classical impurity in the quantum Ising chain
- Quantum Hall states for in optical lattices