Spin gradient thermometry for ultracold atoms in optical lattices

Abstract

We demonstrate spin gradient thermometry, a new general method of measuring the temperature of ultracold atoms in optical lattices. We realize a mixture of spins separated by a magnetic field gradient. Measurement of the width of the transition layer between the two spin domains serves as a new method of thermometry which is observed to work over a broad range of lattice depths and temperatures, including in the Mott insulator regime. We demonstrate the thermometry in a system of ultracold rubidium atoms, and suggest that interesting spin physics can be realized in this system. The lowest measured temperature is 1 nK, indicating that the system has reached the quantum regime, where insulating shells are separated by superfluid layers.

5 pages, 3 figures, minor edits for clarity

References in corpus (8)

• Many-Body Physics with Ultracold Gases
• Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
• Formation of spatial shell structures in the superfluid to Mott insulator transition
• Fast, Runaway Evaporative Cooling to Bose-Einstein Condensation in Optical Traps
• Boson Mott insulators at finite temperatures
• Intrinsic Heating and Cooling in Adiabatic Processes for Bosons in Optical Lattices
• Ground state cooling of atoms in optical lattices
• On-site number statistics of ultracold lattice bosons

Cited by in corpus (101)

• Quantum Simulation of Antiferromagnetic Spin Chains in an Optical Lattice
• Probing the Superfluid to Mott Insulator Transition at the Single Atom Level
• Quantum Chaos and Thermalization in Isolated Systems of Interacting Particles
• Generation of dark-bright soliton trains in superfluid-superfluid counterflow
• 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
• Spin Transport in a Mott Insulator of Ultracold Fermions
• Quantitative Determination of Temperature in the Approach to Magnetic Order of Ultracold Fermions in an Optical Lattice
• Spin gradient demagnetization cooling of ultracold atoms
• Interaction and filling induced quantum phases of dual Mott insulators of bosons and fermions
• Quantum Quenches in an XXZ Spin Chain from a Spatially Inhomogeneous Initial State
• Local quantum thermal susceptibility
• Cooling and thermometry of atomic Fermi gases
• Thermometry with spin-dependent lattices
• Quench Dynamics of Isolated Many-Body Quantum Systems
• Spatial entanglement of bosons in optical lattices
• Time Fluctuations in Isolated Quantum Systems of Interacting Particles
• Precision Measurements of Temperature and Chemical Potential of Quantum Gases
• General Features of the Relaxation Dynamics of Interacting Quantum Systems
• Faraday waves in binary non-miscible Bose-Einstein condensates
• Quenched binary Bose-Einstein condensates: spin domain formation and coarsening
• Non-equilibrium dynamics of the Bose-Hubbard model: A projection operator approach
• Critical entropies for magnetic ordering in bosonic mixtures on a lattice
• Optical lattice platform for the SYK model
• Dynamic freezing of strongly correlated ultracold bosons
• Thermodynamics of a Bose Einstein condensate with free magnetization
• The equation of state of ultracold Bose and Fermi gases: a few examples
• Domain wall dynamics in integrable and chaotic spin-1/2 chains
• Tight bound on finite-resolution quantum thermometry at low temperatures
• Quantum metrology with non-equilibrium steady states of quantum spin chains
• Techniques to measure quantum criticality in cold atoms
• Collinear Four-Wave Mixing of Two-Component Matter Waves
• Photonic Phase Gate via an Exchange of Fermionic Spin Waves in a Spin Chain
• Quantum walks and quantum simulations with Bloch oscillating spinor atoms
• Driven-dissipative many-body pairing states for cold fermionic atoms in an optical lattice
• A projection operator approach to the Bose-Hubbard model
• Tunable anisotropic magnetism in trapped two-component Bose gases
• Cooling through quantum criticality and many-body effects in condensed matter and cold gases
• Transition to miscibility in linearly coupled binary dipolar Bose-Einstein condensates
• Supersolid Phase of Cold Fermionic Polar Molecules in 2D Optical Lattices
• First-order phase transition and anomalous hysteresis of Bose gases in optical lattices
• Supersolidity of lattice Bosons immersed in strongly correlated Rydberg dressed atoms
• Dressed, noise- or disorder- resilient optical lattices
• Quenched dynamics in interacting one-dimensional systems: Appearance of current carrying steady states from initial domain wall density profiles
• Effect of particle statistics in strongly correlated two-dimensional Hubbard models
• Intensive temperature and quantum correlations for refined quantum measurements
• Quantum tricriticality at the superfluid-insulator transition of binary Bose mixtures
• Lattice-Ramp Induced Dynamics in an Interacting Bose-Bose Mixture
• Nonequilibrium current-carrying steady states in the anisotropic $XY$ spin chain
• Thermometry and Refrigeration in a Two-Component Mott Insulator of Ultracold Atoms
• Bose-Einstein condensation and critical behavior of two-component bosonic gases
• Pomeranchuk effect and spin-gradient cooling of Bose-Bose mixtures in an optical lattice
• Honeycomb, square, and kagomé vortex lattices in superconducting systems with multi-scale inter-vortex interactions
• Quantum magnetism and counterflow supersolidity of up-down bosonic dipoles
• Nonlinear waves in coherently coupled Bose-Einstein condensates
• Experimental Determination of Bose-Hubbard Energies
• Superfluid-Mott insulator transition in spin-orbit coupled Bose-Hubbard Model
• Ising antiferromagnet with ultracold bosonic mixtures confined in a harmonic trap
• Large-N approximation for single- and two-component dilute Bose gases
• Magnetic phase transitions of spin-1 ultracold bosons in a cubic optical lattice
• Lorentz-violating effects in the Bose-Einstein condensation of an ideal bosonic gas
• Phase diagram and multicritical behaviors of mixtures of 3D bosonic gases
• Two-body recombination in a quantum mechanical lattice gas: Entropy generation and probing of short-range magnetic correlations
• Oscillatory pairing of fermions in spin-split traps
• Anisotropic pair-superfluidity of trapped two-component Bose gases
• Universal conductance of a PT-symmetric Luttinger liquid after a quantum quench
• Stoner ferromagnetism in a thermal pseudospin-1/2 Bose gas
• The ground state of binary systems with a periodic modulation of the linear coupling
• Momentum Resolved Optical Lattice Modulation Spectroscopy for Bose Hubbard Model
• Quantum Spinon Oscillations
• Quantum phases of spin-orbital-angular-momentum coupled bosonic gases in optical lattices
• Quantum Atom Optics: Theory and Applications to Quantum Technology
• Optimal Quantum Thermometry by Dephasing
• Interaction dependent temperature effects in Bose-Fermi mixtures in optical lattices
• Photodisintegration of aligned deuterons at astrophysical energies using linearly polarized photons
• Two-body correlations and natural orbital tomography in ultracold bosonic systems of definite parity
• Thermometry and signatures of strong correlations from Raman spectroscopy of fermionic atoms in optical lattices
• Thermometry of bosonic mixtures in Optical Lattices via Demixing
• Exploring the grand-canonical phase diagram of interacting bosons in optical lattices by trap squeezing
• Counterflow superfluid of polaron pairs in Bose-Fermi mixtures in optical lattices
• Phase transitions of the coherently coupled two-component Bose gas in a square optical lattice
• Quantum crystal growing: Adiabatic preparation of a bosonic antiferromagnet in the presence of a parabolic inhomogeneity
• Multiworm algorithm quantum Monte Carlo
• Phase Diagrams of Antiferromagnetic Spin-1 Bosons on Square Optical Lattice with the Quadratic Zeeman Effect
• Fragmentation, domain formation and atom number fluctuations of a two-species Bose-Einstein condensate in an optical lattice
• Domain wall dynamics in a two-component Bose-Mott insulator
• Antiferromagnetism in a bosonic mixture of rubidium (${}^{87}$Rb) and potassium (${}^{41}$K)
• Strong-coupling expansion for ultracold bosons in an optical lattice at finite temperatures in the presence of superfluidity
• Phase diagrams and multistep condensations of spin-1 bosonic gases in optical lattices
• Efficiency for preforming molecules from mixtures of light Fermi and heavy Bose atoms in optical lattices: the strong-coupling-expansion method
• Magnetic Phase Transition in the Ground-State Phase Diagram of Binary Bose Gases in Optical Lattices
• Molecular machines for quantum error correction
• Thermally induced coherence in a Mott insulator of bosonic atoms
• Michelson interferometer for measuring temperature
• Characterizing ultra-narrow momentum of atoms by standing-wave light-pulse sequences
• Optical Lattice Modulation Spectroscopy for Spin-orbit Coupled Bosons
• Bayesian quantum thermometry based on thermodynamic length
• Relaxation of ferromagnetic domains in a disordered lattice in 2D
• Persistence of power-law correlations in nonequilibrium steady states of gapped quantum spin chains
• Optimal temperature estimation in polariton Bose-Einstein Condensate
• Heating and Cooling in Adiabatic Mixing process