Momentum-Resolved Bragg Spectroscopy in Optical Lattices
arXiv:0908.4242 · doi:10.1038/nphys1476
Abstract
Strongly correlated many-body systems show various exciting phenomena in condensed matter physics such as high-temperature superconductivity and colossal magnetoresistance. Recently, strongly correlated phases could also be studied in ultracold quantum gases possessing analogies to solid-state physics, but moreover exhibiting new systems such as Fermi-Bose mixtures and magnetic quantum phases with high spin values. Particularly interesting systems here are quantum gases in optical lattices with fully tunable lattice and atomic interaction parameters. While in this context several concepts and ideas have already been studied theoretically and experimentally, there is still great demand for new detection techniques to explore these complex phases in detail. Here we report on measurements of a fully momentum-resolved excitation spectrum of a quantum gas in an optical lattice by means of Bragg spectroscopy. The bandstructure is measured with high resolution at several lattice depths. Interaction effects are identified and systematically studied varying density and excitation fraction.
13 pages, 5 figures
References in corpus (30)
- Many-Body Physics with Ultracold Gases
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Cold bosonic atoms in optical lattices
- Transition from a strongly interacting 1D superfluid to a Mott insulator
- Bragg spectroscopy of a Bose-Einstein condensate
- Using photoemission spectroscopy to probe a strongly interacting Fermi gas
- Quantum phases in an optical lattice
- Excitation of phonons in a Bose-Einstein condensate by light scattering
- High-temperature superfluidity of fermionic atoms in optical lattices
- State preparation and dynamics of ultracold atoms in higher lattice orbitals
- Bragg spectroscopy of a strongly interacting 85Rb Bose-Einstein condensate
- Bragg spectroscopy of a strongly interacting Fermi gas
- Exploring correlated 1D Bose gases from the superfluid to the Mott-insulator state by inelastic light scattering
- Excitations of a Superfluid in a 3D Optical Lattice
- Measuring the one-particle excitations of ultracold fermionic atoms by stimulated Raman spectroscopy
- Bose-Einstein condensates in 1D optical lattices: compressibility, Bloch bands and elementary excitations
- Experimental observation of the Bogoliubov transformation for a Bose-Einstein condensed gas
- Supersolid Bose-Fermi Mixtures in Optical Lattices
- Bragg Spectroscopy of ultracold atoms loaded in an optical lattice
- Bogoliubov sound speed in periodically modulated Bose-Einstein condensates
- Dynamic structure factor of a Bose Einstein condensate in a 1D optical lattice
- Creating a supersolid in one-dimensional Bose mixtures
- Inelastic light scattering from a Mott insulator
- Excitations of Bose-Einstein condensates in a one-dimensional periodic potential
- Dynamic structure factor of ultracold Bose and Fermi gases in optical lattices
- Bragg spectroscopy of trapped one dimensional strongly interacting bosons in optical lattices: Probing the cake-structure
- Sound speed of a Bose-Einstein condensate in an optical lattice
- Bragg spectroscopy of a superfluid Bose-Hubbard gas
- Propagation of sound in a Bose Einstein condensate in an optical lattice
- Longitudinal sound mode of a Bose-Einstein condensate in an optical lattice
Cited by in corpus (148)
- Fermi-Hubbard physics with atoms in an optical lattice
- One-Dimensional Quantum Liquids: Beyond the Luttinger Liquid Paradigm
- Measuring multipartite entanglement via dynamic susceptibilities
- Scrambling and thermalization in a diffusive quantum many-body system
- Topological semimetal in a fermionic optical lattice
- Weyl points in three-dimensional optical lattices: synthetic magnetic monopoles in momentum space
- Cooling in strongly correlated optical lattices: prospects and challenges
- Softening of Roton and Phonon Modes in a Bose-Einstein Condensate with Spin-Orbit Coupling
- Photon-Assisted Tunneling in a Biased Strongly Correlated Bose Gas
- Dirac Equation For Cold Atoms In Artificial Curved Spacetimes
- At the limits of criticality-based quantum metrology: apparent super-Heisenberg scaling revisited
- Detecting the Amplitude Mode of Strongly Interacting Lattice Bosons by Bragg Scattering
- Dirac-Weyl fermions with arbitrary spin in two-dimensional optical superlattices
- Exotic superfluidity in spin-orbit coupled Bose-Einstein condensates
- Ultracold bosons with short-range interaction in regular optical lattices
- A Quantum Dipolar Spin Liquid
- Topological phase transitions in the non-Abelian honeycomb lattice
- Exact prefactors in static and dynamic correlation functions of 1D quantum integrable models: applications to the Calogero-Sutherland, Lieb-Liniger and XXZ models
- Spectroscopy of interacting quasiparticles in trapped ions
- Nonuniversal prefactors in correlation functions of 1D quantum liquids
- Characterization of topological states via dual multipartite entanglement
- Supersolid with nontrivial topological spin textures in spin-orbit-coupled Bose gases
- Characterization of Mott-insulating and superfluid phases in the one-dimensional Bose--Hubbard model
- Topological Varma superfluid in optical lattices
- Observing Properties of an Interacting Homogeneous Bose--Einstein Condensate: Heisenberg-Limited Momentum Spread, Interaction Energy and Free-Expansion Dynamics
- One-dimensional Bose gas in optical lattices of arbitrary strength
- Single-site- and single-atom-resolved measurement of correlation functions
- Excitation dynamics in a lattice Bose gas within the time-dependent Gutzwiller mean-field approach
- Spectral and Entanglement Properties of the Bosonic Haldane Insulator
- Measurement of spectral functions of ultracold atoms in disordered potentials
- Merging and alignment of Dirac points in a shaken honeycomb optical lattice
- Double Weyl points and Fermi arcs of topological semimetals in non-Abelian gauge potentials
- Goldstone and Higgs modes of photons inside a cavity
- Interaction-Enhanced Group Velocity of Bosons in the Flat Band of an Optical Kagome Lattice
- Progress towards quantum simulating the classical O(2) model
- Fidelity susceptibility in Gaussian Random Ensembles
- Charge dynamics in half-filled Hubbard chains with finite on-site interaction
- Single-site-resolved measurement of the current statistics in optical lattices
- π-flux Dirac bosons and topological edge excitations in a bosonic chiral p-wave superfluid
- Bragg spectroscopy of a superfluid Bose-Hubbard gas
- Geometrically protected triple-point crossings in an optical lattice
- Quantum Field Theory for the Three-Body Constrained Lattice Bose Gas -- Part II: Application to the Many-Body Problem
- Quantum Phases of Bose-Hubbard Model in Optical Superlattices
- Intrinsic Photoconductivity of Ultracold Fermions in Optical Lattices
- Probing an Ultracold-Atom Crystal with Matter Waves
- Bragg spectroscopy of clean and disordered lattice bosons in one dimension: a spectral fingerprint of the Bose glass
- Anyonic Haldane insulator in one dimension
- Momentum-Resolved and Correlations Spectroscopy Using Quantum Probes
- Optical lattice influenced geometry of quasi-2D binary condensates and quasiparticle spectra
- Correlation lengths of the repulsive one-dimensional Bose gas
- Fermionization of Bosons in a Flat Band
- Excitation Spectra of Bosons in Optical Lattices from Schwinger-Keldysh Calculation
- Short Bragg pulse spectroscopy for a paraxial fluids of light
- Critical velocity of flowing supersolids of dipolar Bose gases in optical lattices
- Light scattering detection of quantum phases of ultracold atoms in optical lattices
- Emulating Molecular Orbitals and Electronic Dynamics with Ultracold Atoms
- Quantum tunneling dynamics of an interacting Bose-Einstein condensate through a Gaussian barrier
- Landau Levels in Strained Optical Lattices
- Quantum fluctuations beyond the Gutzwiller approximation in the Bose-Hubbard model
- High-precision multiband spectroscopy of ultracold fermions in a nonseparable optical lattice
- Phonon resonances in atomic currents through Bose-Fermi mixtures in optical lattices
- Chern numbers and chiral anomalies in Weyl butterflies
- PT invariant Weyl semimetals in gauge symmetric systems
- Interaction-induced excited-band condensate in a double-well optical lattice
- A millikelvin all-fiber cavity optomechanical apparatus for merging with ultra-cold atoms in a hybrid quantum system
- Magnetic excitations, non-classicality and quantum wake spin dynamics in the Hubbard chain
- Probing the Flat Band of Optically-Trapped Spin-Orbital Coupled Bose Gases Using Bragg Spectroscopy
- Finite temperature disordered bosons in two dimensions
- Comparison of spectral linewidths for quantum degenerate bosons and fermions
- Honeycomb optical lattices with harmonic confinement
- The nonlinear Dirac equation: Preparation and stability of relativistic vortices in Bose-Einstein condensates
- Optical Bragg, atom Bragg and cavity QED detections of quantum phases and excitation spectra of ultracold atoms in bipartite and frustrated optical lattices
- Collective phenomena in quasi-two-dimensional fermionic polar molecules: band renormalization and excitons
- Light scattering from ultracold atomic gases in optical lattices at finite temperature
- Real-Time Ginzburg-Landau Theory for Bosons in Optical Lattices
- One-dimensional Bose-Hubbard model with local three-body interactions
- Damping of the Higgs and Nambu-Goldstone modes of superfluid Bose gases at finite temperatures
- Particle-hole character of the Higgs and Goldstone modes in strongly-interacting lattice bosons
- Phases and collective modes of Rydberg atoms in an optical lattice
- The nonlinear Dirac equation in Bose-Einstein condensates: Superfluid fluctuations and emergent theories from relativistic linear stability equations
- Low-energy physics of isotropic spin-1 chains in the critical and Haldane phases
- Numerical calculation of spectral functions of the Bose-Hubbard model using B-DMFT
- Quantum Memory Assisted Probing of Dynamical Spin Correlations
- Probing quantum many-body correlations by universal ramping dynamics
- Detecting the superfluid critical momentum of Bose gases in optical lattices through dipole oscillations
- Spin-orbit coupled ultracold gases in optical lattices: High-band physics and insufficiency of tight-binding models
- Generalized Effective Potential Landau Theory for Bosonic Quadratic Superlattices
- Superfluidity of Bose-Einstein condensates in ultracold atomic gases
- High- and low-frequency phonon modes in dipolar quantum gases trapped in deep lattices
- Solitary waves in mixtures of Bose gases confined in annular traps
- Quantum probe spectroscopy for cold atomic systems
- Interaction-driven Lifshitz transition with dipolar fermions in optical lattices
- Excitations in disordered bosonic optical lattices
- Quantum fluctuations on top of a -symmetric Bose-Einstein Condensate
- Thermometry and signatures of strong correlations from Raman spectroscopy of fermionic atoms in optical lattices
- Finding the phase diagram of strongly-correlated disordered bosons using quantum quenches
- Matter-wave scattering from interacting bosons in an optical lattice
- Energy absorption spectroscopy of unitary Fermi gases in a uniform potential
- Topological van Hove singularities at phase transitions in Weyl metals
- Anisotropic superfluidity of two-dimensional excitons in a periodic potential
- Weyl Bogoliubov excitations in Bose-Hubbard extension of Weyl semimetal
- Momentum distribution and ordering in mixtures of ultracold light and heavy fermionic atoms
- Exploring the grand-canonical phase diagram of interacting bosons in optical lattices by trap squeezing
- An atomic Fabry-Perot interferometer using a pulsed interacting Bose-Einstein condensate
- phases and Majorana spectroscopy in paired Bose-Hubbard chains
- Wavepacket dynamics on Chern band lattices in a trap
- Temperature-dependent excitation spectra of ultra-cold bosons in optical lattices
- Topological phonons in arrays of ultracold dipolar particles
- Pseudo-time-reversal-symmetry-protected topological Bogoliubov excitations of Bose-Einstein condensates in optical lattices
- Calibrating the absorption imaging of cold atoms under high magnetic fields
- Emergence of Quintet Superfluidity in the Chain of Partially Polarized Spin-3/2 Ultracold Atom
- Exotic Ising dynamics in a Bose-Hubbard model
- Local spectral density of an interacting one-dimensional Bose gas with an impurity
- Thermodynamic measurement of the sound velocity of a Bose gas across the transition to Bose-Einstein condensation
- Light scattering in inhomogeneous Tomonaga-Luttinger liquids
- Bogoliubov approach to superfluid-Bose glass phase transition of a disordered Bose-Hubbard Model in weakly interacting regime
- Metal-Insulator-Superconductor transition of spin-3/2 atoms on optical lattices
- Bilayer honeycomb lattice with ultracold atoms: Multiple Fermi surfaces and incommensurate spin density wave instability
- Elementary excitations of antiferromagnetic spin-1 bosons in an optical lattice
- Exploring multi-band excitations of interacting Bose gases in a 1D optical lattice by coherent scattering
- Cooperative scattering measurement of coherence in a spatially modulated Bose gas
- Bragg spectroscopic interferometer and quantum measurement-induced correlations in atomic Bose-Einstein condensates
- Particle-hole bound states of dipolar molecules in optical lattice
- Ultracold Atoms in Disordered Potentials: Elastic Scattering Time in the Strong Scattering Regime
- Equilibrium angular momentum and edge current in Bose-condensed cold atom systems with k-space Berry curvature
- Controlling magnetic correlations in a driven Hubbard system far from half-filling
- Exploring phonon-like interactions in one-dimensional Bose-Fermi mixtures
- Itinerant magnetism in Weyl spin-orbit coupled Fermi gas
- Simulating the Palmer-Chalker state in an orbital superfluid
- Emergence of charge density wave and superconducting phase transitions through Lorentz-invariant interactions in the Haldane-Hubbard model
- Flux-driven quantum spin liquids in kagome optical lattices
- Unusual behavior of sound velocity of a Bose gas in an optical superlattice at quasi-one-dimension
- Exploring kinetically induced bound states in triangular lattices with ultracold atoms: spectroscopic approach
- Frequency-selective amplification of nonlinear response in strongly correlated bosons
- Bosonic Weyl excitations induced by -orbital interactions in a cubic optical lattice
- Quantum-droplet interferometry
- Theoretical Analysis on Spectroscopy of Atomic Bose-Hubbard Systems
- Probing -wave effects in spin-density separation of Bose mixtures with the dynamic structure factor
- Correlation Energy for Elementary Bosons: Physics of the Singularity
- Manipulating Goldstone modes via the superradiant light in a bosonic lattice gas inside a cavity
- Faraday Waves in strongly interacting superfluids
- Energy Band Engineering of Periodic Scatterers by Quasi-1D Confinement
- Slow-Goldstone mode generated by order from quantum disorder and its experimental detection
- Energy and momentum transfer in one-dimensional trapped gases by stimulated light scattering
- Spectral weight suppression in response functions of ultracold fermion-boson mixtures
- Direct reconstruction of the band structure of a 1D optical lattice with thermal atoms
- Phase Diagram and Spectral Function of the Two-Dimensional Disordered Bose-Hubbard Model: A Real-Space Dynamical Mean-Field Theory Analysis
- Critical magnetic flux for Weyl points in the three-dimensional Hofstadter model