High Density Mesoscopic Atom Clouds in a Holographic Atom Trap

Abstract

We demonstrate the production of micron-sized high density atom clouds of interest for meso- scopic quantum information processing. We evaporate atoms from 60 microK, 3x10^14 atoms/cm^3 samples contained in a highly anisotropic optical lattice formed by interfering di racted beams from a holographic phase plate. After evaporating to 1 microK by lowering the con ning potential, in less than a second the atom density reduces to 8x10^13 cm^- 3 at a phase space density approaching unity. Adiabatic recompression of the atoms then increases the density to levels in excess of 1x10^15 cm^-3. The resulting clouds are typically 8 microns in the longest dimension. Such samples are small enough to enable mesoscopic quantum manipulation using Rydberg blockade and have the high densities required to investigate new collision phenomena.

4 pages, 4 figures, submitted to PRL

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• Entangling single and $N$ atom qubits for fast quantum state detection and transmission
• Dynamics of Low-Density Ultracold Rydberg Gases
• Polyatomic Molecules Formed with a Rydberg Atom in an Ultracold Environment
• Quantum Error Correction of a Qubit Loss in an Addressable Atomic System
• Four-Wave Mixing in Ultracold Atoms using Intermediate Rydberg States
• Evaporative cooling of a small number of atoms in a single-beam microscopic dipole trap
• Simulation of sympathetic cooling an optically levitated magnetic nanoparticle via coupling to a cold atomic gas
• Phase modulation induced by cooperative effects in electromagnetically induced transparency