Robust Bilayer Charge-Pumping for Spin- and Density-Resolved Quantum Gas Microscopy

Abstract

Quantum gas microscopy has emerged as a powerful new way to probe quantum many-body systems at the microscopic level. However, layered or efficient spin-resolved readout methods have remained scarce as they impose strong demands on the specific atomic species and constrain the simulated lattice geometry and size. Here we present a novel high-fidelity bilayer readout, which can be used for full spin- and density-resolved quantum gas microscopy of two-dimensional systems with arbitrary geometry. Our technique makes use of an initial Stern-Gerlach splitting into adjacent layers of a highly-stable vertical superlattice and subsequent charge pumping to separate the layers by $21\mu$m. This separation enables independent high-resolution images of each layer. We benchmark our method by spin- and density-resolving two-dimensional Fermi-Hubbard systems. Our technique furthermore enables the access to advanced entropy engineering schemes, spectroscopic methods or the realization of tunable bilayer systems.

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• Microscopic evolution of doped Mott insulators from polaronic metal to Fermi liquid
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• Probing site-resolved correlations in a spin system of ultracold molecules
• Competing magnetic orders in a bilayer Hubbard model with ultracold atoms
• Doublon-hole correlations and fluctuation thermometry in a Fermi-Hubbard gas
• A Fermi-Hubbard Optical Tweezer Array
• Mid-circuit qubit measurement and rearrangement in a ${}^{171}$Yb atomic array
• Magnetically mediated hole pairing in fermionic ladders of ultracold atoms
• Observation of Cooper Pairs in a Mesoscopic 2D Fermi Gas
• Site-resolved imaging of ultracold fermions in a triangular-lattice quantum gas microscope
• Direct observation of non-local fermion pairing in an attractive Fermi-Hubbard gas
• Strong pairing in mixed dimensional bilayer antiferromagnetic Mott insulators
• A two-dimensional programmable tweezer array of fermions
• Correlator Convolutional Neural Networks: An Interpretable Architecture for Image-like Quantum Matter Data
• Directly imaging spin polarons in a kinetically frustrated Hubbard system
• Quantum single-photon control, storage, and entanglement generation with planar atomic arrays
• Universal thermodynamics of an SU($N$) Fermi-Hubbard Model
• Visualizing Strange Metallic Correlations in the 2D Fermi-Hubbard Model with AI
• Fast single atom imaging for optical lattice arrays
• Quantum Many-Body Simulations of the 2D Fermi-Hubbard Model in Ultracold Optical Lattices
• Cooperative optical wavefront engineering with atomic arrays
• Dominant fifth-order correlations in doped quantum anti-ferromagnets
• Snapshot based characterization of particle currents and the Hall response in synthetic flux lattices
• Formation of stripes in a mixed-dimensional cold-atom Fermi-Hubbard system
• Probing eigenstate thermalization in quantum simulators via fluctuation-dissipation relations
• Quantum gas microscopy of a geometrically frustrated Hubbard system
• Non-Gaussian diffusive fluctuations in Dirac fluids
• Bilayer Hubbard model: Analysis based on the fermionic sign problem
• Optical superlattice for engineering Hubbard couplings in quantum simulation
• Proposal for asymmetric photoemission and tunneling spectroscopies in quantum simulators of the triangular-lattice Fermi-Hubbard model
• Spatial tomography of individual atoms in a quantum gas microscope
• Unidirectional absorption, storage, and emission of single photons in a collectively responding bilayer atomic array
• Higher-Order Spin-Hole Correlations around a Localized Charge Impurity
• Optical magnetism and wavefront control by arrays of strontium atoms
• Quantum phases of dipolar bosons in multilayer optical lattice
• Intertwined Order in Fractional Chern Insulators from Finite-Momentum Pairing of Composite Fermions
• Manipulating atom-number distributions and detecting spatial distributions in lattice-confined spinor gases
• Numerically exact mimicking of quantum gas microscopy for interacting lattice fermions
• Frustration-Induced Superconductivity in the $t$-$t^{\prime }$ Hubbard Model
• Quantum state preparation of topological chiral spin liquids via Floquet engineering
• Splitting and connecting singlets in atomic quantum circuits
• Equilibrium and non-equilibrium dynamics of a hole in a bilayer antiferromagnet
• Two-dopant origin of competing stripe and pair formation in Hubbard and $t$-$J$ models
• Proximity effect and spatial Kibble-Zurek mechanism in atomic Fermi gases with inhomogeneous pairing interactions
• Kinetic magnetism in the crossover between the square and triangular lattice Fermi-Hubbard models
• The rotor Jackiw-Rebbi model: a cold-atom approach to chiral symmetry restoration and quark confinement
• Layer-by-layer assembly of multilayer optical lattices: Application to displaced dice lattice
• Microsecond-scale high-survival and number-resolved detection of ytterbium atom arrays
• In situ subwavelength microscopy of ultracold atoms using dressed excited states
• Efficiently measuring $d$-wave pairing and beyond in quantum gas microscopes
• Two-doublon Bloch oscillations in the mass-imbalanced extended Fermi-Hubbard model
• Learning interacting fermionic Hamiltonians at the Heisenberg limit
• Measuring Non-local Brane Order with Error-corrected Parity Snapshots
• Universal gates for a metastable qubit in strontium-88
• Sampling Electronic Fock States using Determinant Quantum Monte Carlo
• Subexponential decay of local correlations from diffusion-limited dephasing
• Spin-charge correlations in finite one-dimensional multi-band Fermi systems
• Structural complexity of snapshots of 2D Fermi-Hubbard systems
• Engineering Majorana Kramers Pairs In Synthetic High Spin Chern Insulators
• Protocol for autonomous rearrangement of cold atoms into low-entropy configurations
• Relaxation mechanisms in a disordered system with the Poisson level statistics
• Site-resolved observables in the doped spin-imbalanced triangular Hubbard model
• Insulating-to-conducting state transition in the bilayer Hubbard model induced by a perpendicular quench field
• Trion ordering in the attractive three-color Hubbard model on a $\pi$-flux square lattice