Exploring correlated 1D Bose gases from the superfluid to the Mott-insulator state by inelastic light scattering

Abstract

We report the Bragg spectroscopy of interacting one-dimensional Bose gases loaded in optical lattices across the superfluid to Mott-insulator phase transition. Elementary excitations are created with a non-zero momentum and the response of the correlated 1D gases is in the linear regime. The complexity of the strongly correlated quantum phases is directly displayed in the spectra which exhibit novel features. This work paves the way for a precise characterization of the state of correlated atomic phases in optical lattices.

5 pages, 4 figures

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• Many-Body Physics with Ultracold Gases
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• Spatial quantum noise interferometry in expanding ultracold atom clouds
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• Spectral weight redistribution in strongly correlated bosons in optical lattices
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Cited by in corpus (37)

• Tools for quantum simulation with ultracold atoms in optical lattices
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• Non-equilibrium dynamics of bosonic atoms in optical lattices: Decoherence of many-body states due to spontaneous emission
• Cooling in strongly correlated optical lattices: prospects and challenges
• Dynamical structure factor of one-dimensional Bose gases: experimental signatures of beyond-Luttinger liquid physics
• Detecting the Amplitude Mode of Strongly Interacting Lattice Bosons by Bragg Scattering
• Coherent and dissipative dynamics at quantum phase transitions
• Scaling of the gap, fidelity susceptibility, and Bloch oscillations across the superfluid to Mott insulator transition in the one-dimensional Bose-Hubbard model
• Characterization of Mott-insulating and superfluid phases in the one-dimensional Bose--Hubbard model
• Spectral and Entanglement Properties of the Bosonic Haldane Insulator
• Interaction-Enhanced Group Velocity of Bosons in the Flat Band of an Optical Kagome Lattice
• Metastable criticality and the super Tonks-Girardeau gas
• Strongly interacting trapped one-dimensional quantum gases: an exact solution
• Anyonic Haldane insulator in one dimension
• Unraveling the Excitation Spectrum of Many-Body Systems from Quantum Quenches
• Excitation Spectra of Bosons in Optical Lattices from Schwinger-Keldysh Calculation
• XXZ spin-1/2 representation of a finite-U Bose-Hubbard chain at half-integer filling
• Disordered one-dimensional Bose-Fermi mixtures: The Bose-Fermi glass
• Numerical calculation of spectral functions of the Bose-Hubbard model using B-DMFT
• Probing quantum many-body correlations by universal ramping dynamics
• Excitations in disordered bosonic optical lattices
• Finding the phase diagram of strongly-correlated disordered bosons using quantum quenches
• State diagram for continuous quasi-one dimensional systems in optical lattices
• Matter-wave scattering from interacting bosons in an optical lattice
• One-particle spectral functions of the one-dimensional Fermionic Hubbard model with one fermion per site at zero and finite magnetic fields
• ${\mathbb{Z}}_2$ phases and Majorana spectroscopy in paired Bose-Hubbard chains
• Role of interactions in time-of-flight expansion of atomic clouds from optical lattices
• Dynamical probing of a topological phase of bosons in one dimension
• Directed motion of doublons and holes in periodically driven Mott insulators
• Compact setup for the production of ${}^{87}$Rb $|F=2,m_F=+2⟩$ Bose-Einstein condensates in a hybrid trap
• Ultracold Atoms in Disordered Potentials: Elastic Scattering Time in the Strong Scattering Regime
• Bragg spectroscopic interferometer and quantum measurement-induced correlations in atomic Bose-Einstein condensates
• Emergence of charge density wave and superconducting phase transitions through Lorentz-invariant interactions in the Haldane-Hubbard model
• Exploring kinetically induced bound states in triangular lattices with ultracold atoms: spectroscopic approach
• Phase Diagram and Spectral Function of the Two-Dimensional Disordered Bose-Hubbard Model: A Real-Space Dynamical Mean-Field Theory Analysis
• Energy and momentum transfer in one-dimensional trapped gases by stimulated light scattering
• One-particle spectral function singularities in a one-dimensional gas of spin-1/2 fermions with repulsive delta-function interaction