Manipulating scattering of ultracold atoms with light-induced dissipation

  title={Manipulating scattering of ultracold atoms with light-induced dissipation},
  author={Mikhail Lemeshko},
  journal={Frontiers in Physics},
  • M. Lemeshko
  • Published 30 July 2013
  • Physics
  • Frontiers in Physics
Recently it has been shown that pairs of atoms can form metastable bonds due to non-conservative forces induced by dissipation [Lemeshko\&Weimer, Nature Comm. \textbf{4}, 2230 (2013)]. Here we study the dynamics of interaction-induced coherent population trapping -- the process responsible for the formation of dissipatively bound molecules. We derive the effective dissipative potentials induced between ultracold atoms by laser light, and study the time evolution of the scattering states. We… 

Figures from this paper

Dissipative Few-Body Quantum Systems
Within the scope of this thesis, we show that a driven-dissipative system with few ultracold atoms can exhibit dissipatively bound states, even if the atom-atom interaction is purely repulsive. This


Dissipative binding of atoms by non-conservative forces.
It is shown that bonding can also occur by the non-conservative forces responsible for interaction-induced coherent population trapping, present even when the interactions among the atoms are purely repulsive.
Laser cooling below the one-photon recoil energy by velocity-selective coherent population trapping: theoretical analysis
We present a theoretical analysis of a new one-dimensional laser-cooling scheme that was recently demonstrated on a beam of metastable 4He atoms. Both internal and translational degrees of freedom
Dissipation-induced d-wave pairing of fermionic atoms in an optical lattice.
It is shown how dissipative dynamics can give rise to pairing for two-component fermions on a lattice, and a parent Liouvillian operator is constructed so that a BCS-type state of a given symmetry is reached for arbitrary initial states in the absence of conservative forces.
Probing many-body states of ultracold atoms via noise correlations (4 pages)
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
Strongly correlated gases of Rydberg-dressed atoms: quantum and classical dynamics.
It is shown that residual spontaneous emission from the Rydberg state acts as a heating mechanism, leading to a quantum-classical crossover.
Excitation of Phonons in a Bose-Einstein Condensate by Light Scattering
thereby “optically imprinting” phonons into the gas. The momentum imparted to the condensate was measured by a time-of-flight analysis. This study is the first to explore phonons with wavelengths
Observation of spatially ordered structures in a two-dimensional Rydberg gas
High-resolution, in situ Rydberg atom imaging is used to measure directly strong correlations in a laser-excited, two-dimensional atomic Mott insulator, laying the basis for quantum simulations of quantum magnets with long-range interactions.
Spatial quantum noise interferometry in expanding ultracold atom clouds
It is shown that strong periodic quantum correlations exist between density fluctuations in the expanding atom cloud, and these spatial correlations reflect the underlying ordering in the lattice, and find a natural interpretation in terms of a multiple-wave HBT interference effect.
Coherent population trapping with controlled interparticle interactions
  • H. Schempp, G. Gunter, T. Pohl
  • Physics
    2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC)
  • 2011
In this experiment CPT is investigated in a strongly interacting ultracold Rydberg gas and a theoretical model that includes interparticle correlations is presented and nicely reproduces the observed features.
Wave-function approach to dissipative processes in quantum optics.
An alternative approach using a wave-function treatment to describe the atomic system and it is shown that this treatment is equivalent to the standard density matrix approach leading to the OBE's.