Light scattering for thermometry of fermionic atoms in an optical lattice
Physical Review Letters 103:17 (2009)
Abstract:
We propose a method of using off-resonant light scattering to measure the temperature of fermionic atoms tightly confined in a two-dimensional optical-lattice potential. We show that fluctuations of the intensity in the far-field diffraction pattern arising from thermal correlations of the atoms can be accurately detected above the shot noise by collecting photons scattered in a forward direction, with the diffraction maxima blocked. The sensitivity of this method of thermometry is enhanced by an additional harmonic trapping potential. © 2009 The American Physical Society.Light scattering for thermometry of fermionic atoms in an optical lattice.
Phys Rev Lett 103:17 (2009) 170404
Abstract:
We propose a method of using off-resonant light scattering to measure the temperature of fermionic atoms tightly confined in a two-dimensional optical-lattice potential. We show that fluctuations of the intensity in the far-field diffraction pattern arising from thermal correlations of the atoms can be accurately detected above the shot noise by collecting photons scattered in a forward direction, with the diffraction maxima blocked. The sensitivity of this method of thermometry is enhanced by an additional harmonic trapping potential.Enhancement of on-site interactions of tunneling ultracold atoms in optical potentials using radio-frequency dressing
Physical Review A American Physical Society (APS) 78:5 (2008) 051602
Dynamic optical lattices: two-dimensional rotating and accordion lattices for ultracold atoms.
Opt Express 16:21 (2008) 16977-16983
Abstract:
We demonstrate a novel experimental arrangement which can rotate a 2D optical lattice at frequencies up to several kilohertz. Ultracold atoms in such a rotating lattice can be used for the direct quantum simulation of strongly correlated systems under large effective magnetic fields, allowing investigation of phenomena such as the fractional quantum Hall effect. Our arrangement also allows the periodicity of a 2D optical lattice to be varied dynamically, producing a 2D accordion lattice.A ring trap for ultracold atoms in an RF-dressed state
New Journal of Physics 10 (2008)