A two-dimensional quantum gas in a magnetic trap

Abstract

We present the first experimental realization of a two-dimensional quantum gas in a purely magnetic trap dressed by a radio frequency field in the presence of gravity. The resulting potential is extremely smooth and very close to harmonic in the two-dimensional plane of confinement. We fully characterize the trap and demonstrate the confinement of a quantum gas to two dimensions. The trap geometry can be modified to a large extent, in particular in a dynamical way. Taking advantage of this possibility, we study the monopole and the quadrupole modes of a two-dimensional Bose gas.

9 pages, 7 figures, published in New J. Phys. 15, 033007 (2013)

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• Supersonic rotation of a superfluid: a long-lived dynamical ring
• Quantum anomaly and 2D-3D crossover in strongly interacting Fermi gases
• Static and dynamic properties of shell-shaped condensates
• Low-dimensional quantum gases in curved geometries
• Ultracold atoms in multiple-radiofrequency dressed adiabatic potentials
• Perspective on Quantum Bubbles in Microgravity
• Thermodynamics in expanding shell-shaped Bose-Einstein condensates
• Superfluid vortex dynamics on an ellipsoid and other surfaces of revolution
• Superfluid vortex dynamics on a spherical film
• Observation of the BKT Transition in a 2D Bose Gas via Matter-Wave Interferometry
• Trapping atoms with radio-frequency adiabatic potentials
• Shell-shaped Bose-Einstein condensates realized with dual-species mixtures
• Imaging the collective excitations of an ultracold gas using statistical correlations
• Dissociation of one-dimensional matter-wave breathers due to quantum many-body effects
• Fast driving between arbitrary states of a quantum particle by trap deformation
• Non-adiabatic losses from radio-frequency dressed cold atom traps: beyond the Landau-Zener model
• Breakdown of scale invariance in a quasi-two-dimensional Bose gas due to the presence of the third dimension
• "Magic" radio-frequency dressing for trapped atomic microwave clocks
• Species-selective confinement of atoms dressed with multiple radiofrequencies
• Probing superfluidity in a quasi two-dimensional Bose gas through its local dynamics
• Shell-shaped atomic gases
• Analytical treatment of the interaction quench dynamics of two bosons in a two-dimensional harmonic trap
• Microwave spectroscopy of radio-frequency dressed ${}^{87}$Rb
• Coherent splitting of two-dimensional Bose gases in magnetic potentials
• Stationary and dynamical properties of two harmonically trapped bosons in the crossover from two dimensions to one
• Thermal melting of a vortex lattice in a quasi two-dimensional Bose gas
• A toroidal trap for cold ${}^{87}Rb$ atoms using an rf-dressed quadrupole trap
• Realising a species-selective double well with multiple-radiofrequency-dressed potentials
• Observations of $\lambda /4$ structure in a low-loss radiofrequency-dressed optical lattice
• Probing multiple-frequency atom-photon interactions with ultracold atoms
• Loading a quantum gas from a hybrid dimple trap to a shell trap
• Bose-Einstein condensates and the thin-shell limit in anisotropic bubble traps
• Inelastic collisions in radiofrequency-dressed mixtures of ultracold atoms
• Anisotropic two-dimensional RF-dressed potentials for ultracold atoms
• Observation of a Bilayer Superfluid with Interlayer Coherence
• Binary Mixture of quasi one dimensional dipolar Bose Einstein Condensates with tilted dipoles
• Different atom trapping geometries with time averaged adiabatic potentials
• All-optical bubble trap for ultracold atoms in microgravity
• Local correlations reveal the superfluid to normal boundary in a trapped two-dimensional quantum gas
• Landau Quantization for $\Lambda$-Type Neutral Atoms in an Homogeneous Spin-Dependent Gauge Potential
• Finite-frequency normal and superfluid drag effects in two-component atomic Bose-Einstein condensates
• Shell-shaped condensates with gravitational sag: contact and dipolar interactions
• A versatile ring trap for quantum gases