Interference of Bose-Einstein Condensates on an Atom Chip

Abstract

We have used a microfabricated atom chip to split a single Bose-Einstein condensate of sodium atoms into two spatially separated condensates. Dynamical splitting was achieved by deforming the trap along the tightly confining direction into a purely magnetic double-well potential. We observed the matter wave interference pattern formed upon releasing the condensates from the microtraps. The intrinsic features of the quartic potential at the merge point, such as zero trap frequency and extremely high field-sensitivity, caused random variations of the relative phase between the two split condensates. Moreover, the perturbation from the abrupt change of the trapping potential during the splitting was observed to induce vortices.

4 pages, 5 figures

References in corpus (19)

• Atom interferometry with Bose-Einstein condensates in a double-well potential
• Atom Chips
• An Atom Michelson Interferometer on a Chip Using a Bose-Einstein Condensate
• Topological vortex formation in a Bose-Einstein condensate
• Bose-Einstein Condensation in a Surface Micro Trap
• Observation of vortex phase singularities in Bose-Einstein condensates
• Guiding Neutral Atoms
• Propagation of Bose-Einstein condensates in a magnetic waveguide
• Dynamical Instability of a Doubly Quantized Vortex in a Bose-Einstein condensate
• Guiding neutral atoms around curves with lithographically patterned current-carrying wires
• Thermally induced spin flips above an atom chip
• A two wire waveguide and interferometer for cold atoms
• Bose-Einstein condensates near a microfabricated surface
• Surface Effects in Magnetic Microtraps
• The role of wire imperfections in micro magnetic traps for atoms
• Dynamic splitting of a Bose-Einstein Condensate
• Atom Chips: Fabrication and Thermal Properties
• Comment on ``Phase and Phase Diffusion of a Split Bose-Einstein Condensate''
• Nonlinear Dynamics of a Bose-Einstein Condensate in a Magnetic Waveguide

Cited by in corpus (87)

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• Radio-frequency dressed state potentials for neutral atoms
• A new class of exact solitary wave solutions of one dimensional Gross-Pitaevskii equation
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• Interference between independent fluctuating condensates
• Adiabatic radio frequency potentials for the coherent manipulation of matter waves
• Fifteen Years of Cold Matter on the Atom Chip: Promise, Realizations, and Prospects
• Atom interferometry tests of local Lorentz invariance in gravity and electrodynamics
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• Realization of a superconducting atom chip
• Persistent Supercurrent Atom Chip
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• Compact chip-scale guided cold atom gyrometers for inertial navigation: Enabling technologies and design study
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• Beam quality of a non-ideal atom laser
• Matter-wave Interferometry with Phase Fluctuating Bose-Einstein Condensates
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• Integrated coherent matter wave circuits
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• Bose-Einstein condensation on a superconducting atom chip
• Nonlinear transport of Bose-Einstein condensates through mesoscopic waveguides
• Quasi-condensate growth on an atom chip
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• Atomic Josephson vortex
• Localization of a Bose-Einstein condensate vortex in a bichromatic optical lattice
• Self-heterodyne detection of the {\it in-situ} phase of an atomic-SQUID
• Decoherence and entanglement in a bosonic Josephson junction: Bose-enhanced quantum-Zeno control of phase-diffusion
• Phase coherent splitting of Bose-Einstein condensates with an integrated magnetic grating
• Relationship between spin squeezing and single-particle coherence in two-component Bose-Einstein condensates with Josephson coupling
• Non-Linear Beam Splitter in Bose-Einstein Condensate Interferometers
• Universality in nonadiabatic behaviour of classical actions in nonlinear models with separatrix crossings
• Three-dimensional character of atom-chip-based rf-dressed potentials
• $Large-scale$ thermalization, prethermalization and impact of the temperature in the quench dynamics of two unequal Luttinger liquids
• Dynamical excitations in the collision of 2D Bose-Einstein condensates
• Projective phase measurements in one-dimensional Bose gases
• Symmetric micro-wave potentials for interferometry with thermal atoms on a chip
• Atom trapping with a thin magnetic film
• Impurity in a bosonic Josephson junction: swallowtail loops, chaos, self-trapping and the poor man's Dicke model
• Effect of Magnetization Inhomogeneity on Magnetic Microtraps for Atoms
• Spatial interference from well-separated condensates
• Impurity in a Bose-Einstein condensate in a double well
• Quenches in initially coupled Tomonaga-Luttinger Liquids: a conformal field theory approach
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• Talbot-enhanced, maximum-visibility imaging of condensate interference
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• One-dimensional Bose chemistry: effects of non-integrability
• Integrability breakdown in longitudinaly trapped, one-dimensional bosonic gases
• Towards a guided atom interferometer based on a superconducting atom chip
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• Phase coherence and fragmentation in weakly interacting bosonic gases
• Atom-number squeezing and bipartite entanglement of two-component Bose-Einstein condensates: analytical results
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• Splitting and merging an elongated Bose-Einstein condensate at finite temperature
• Control of Ultra-cold Inelastic Collisions by Feshbash Resonances and Quasi-One-Dimensional Confinement
• Asymmetric double-well potential for single atom interferometry
• Guided atom laser : a new tool for guided atom optics
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• Critical exponents for an impurity in a bosonic Josephson junction: Position measurement as a phase transition
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• Localization of the relative phase via measurements
• Matter-wave beam splitter on an atom chip for a portable atom-interferometer
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• Emergence of spiral dark solitons in the merging of rotating Bose-Einstein condensates
• Gyroscopic effects in interference of matter waves
• Dynamical generation of phase-squeezed states in a two-component Bose-Einstein condensates
• Spin-asymmetric Josephson effect
• Interference of Fock states in a single measurement
• The effect of a laser dip in the semiclassical dynamics of bosonic Josephson Junctions
• Nonlinear Waves in an Experimentally Motivated Ring-shaped Bose-Einstein Condensate Setup
• PT-Symmetric potential impact on the scattering of a Bose-Einstein condensate from a Gaussian Obstacle
• Vortex creation during magnetic trap manipulations of spinor Bose-Einstein condensates
• Composite boson signature in the interference pattern of atomic dimer condensates
• Phase diffusion of a two-component Bose-Einstein condensates: exact and short-time solutions for arbitrary coherent spin state
• An Atom Laser is not monochromatic
• Torquing the Condensate: Angular Momentum Transport in Bose-Einstein Condensates by Solitonic "Corkscrew"
• Vortex Formation by Merging and Interference of Multiple Trapped Bose-Einstein Condensates
• Particle Correlations in Bose-Einstein Condensates
• Matter-Wave Fields for Double-Slit Atom Interferometry: Variational Versus Exact Solitons
• Evolution of fragmented states
• Equilibrium and Non-equilibrium Gross-Pitaevskii Lattice Dynamics: Interactions, Disorder, and Thermalization