Search
Now showing items 141-150 of 176
Spectroscopy of Collective Excitations in Interacting Low-Dimensional Many-Body Systems Using Quench Dynamics
(American Physical Society (APS), 2007)
We study the problem of rapid change of the interaction parameter (quench) in a many-body lowdimensional system. It is shown that, measuring the correlation functions after the quench, the information about a spectrum of ...
Effects of molecular resonances on Rydberg blockade
(American Physical Society (APS), 2015)
We study the effect of resonances associated with complex molecular interaction of Rydberg atoms on Rydberg blockade. We show that densely spaced molecular potentials between doubly excited atomic pairs become unavoidably ...
Probing many-body states of ultracold atoms via noise correlations
(American Physical Society (APS), 2004)
We propose to utilize density-density correlations in the image of an expanding gas cloud to probe complex many-body states of trapped ultracold atoms. In particular, we show how this technique can be used to detect ...
Fractional quantum Hall effect in optical lattices
(American Physical Society (APS), 2007)
We analyze a recently proposed method to create fractional quantum Hall FQH states of atoms confined in optical lattices A. Sørensen et al., Phys. Rev. Lett. 94, 086803 2005 . Extending the previous work, we investigate ...
Breakdown of the local density approximation in interacting systems of cold fermions in strongly anisotropic traps
(American Physical Society (APS), 2006)
We consider spin-polarized mixtures of cold fermionic atoms on the BEC side of the Feshbach resonance. We demonstrate that a strongly anisotropic confining potential can give rise to a double-peak structure in the axial ...
Hybrid Quantum Processors: Molecular Ensembles as Quantum Memory for Solid State Circuits
(American Physical Society (APS), 2006)
We investigate a hybrid quantum circuit where ensembles of cold polar molecules serve as long-lived quantum memories and optical interfaces for solid state quantum processors. The quantum memory realized by collective spin ...
Coherent Optical Transitions in Implanted Nitrogen Vacancy Centers
(American Chemical Society (ACS), 2014)
We report the observation of stable optical transitions in nitrogen-vacancy (NV) centers created by ion implantation. Using a combination of high temperature annealing and subsequent surface treatment, we reproducibly ...
A quantum network of clocks
(Springer Nature, 2014)
The development of precise atomic clocks plays an increasingly important role in modern society. Shared timing information constitutes a key resource for navigation with a direct correspondence between timing accuracy and ...
Disordered Bose-Einstein Condensates in Quasi-One-Dimensional Magnetic Microtraps
(American Physical Society (APS), 2004)
We analyze the effects of a random magnetic potential in a microfabricated waveguide for ultracold atoms. We find that the shape and position fluctuations of a current carrying wire induce a strong Gaussian correlated ...
Spin-exchange interactions of spin-one bosons in optical lattices: Singlet, nematic, and dimerized phases
(American Physical Society (APS), 2003)
We consider insulating phases of cold spin-1 bosonic particles with antiferromagnetic interactions, such as 23Na, in optical lattices. We show that spin-exchange interactions give rise to several distinct phases, which ...