Controlled exchange interaction between pairs of neutral atoms in an optical lattice

@article{Anderlini2007ControlledEI,
  title={Controlled exchange interaction between pairs of neutral atoms in an optical lattice},
  author={M. Anderlini and Patricia J. Lee and B. Brown and J. Sebby-Strabley and W. Phillips and J. V. Porto},
  journal={Nature},
  year={2007},
  volume={448},
  pages={452-456}
}
Ultracold atoms trapped by light offer robust quantum coherence and controllability, providing an attractive system for quantum information processing and for the simulation of complex problems in condensed matter physics. Many quantum information processing schemes require the manipulation and deterministic entanglement of individual qubits; this would typically be accomplished using controlled, state-dependent, coherent interactions among qubits. Recent experiments have made progress towards… Expand

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References

SHOWING 1-10 OF 35 REFERENCES
Controlled collisions for multi-particle entanglement of optically trapped atoms
TLDR
This work reports the creation of highly entangled states of neutral atoms trapped in the periodic potential of an optical lattice, and observes a coherent entangling–disentangling evolution in the many-body system, depending on the phase shift acquired during the collision between neighbouring atoms. Expand
Quantum logic via the exchange blockade in ultracold collisions.
TLDR
A proof-of-principle protocol based on adiabatic evolution of a one-dimensional double Gaussian well is evaluated, calculating fidelities of operation as a function of interaction strength, gate time, and temperature. Expand
A lattice of double wells for manipulating pairs of cold atoms.
We describe the design and implementation of a two-dimensional optical lattice of double wells suitable for isolating and manipulating an array of individual pairs of atoms in an optical lattice.Expand
Universal quantum computation with the exchange interaction
TLDR
An explicit scheme is introduced in which the Heisenberg interaction alone suffices to implement exactly any quantum computer circuit, at a price of a Factor of three in additional qubits, and about a factor of ten in additional two-qubit operations. Expand
Controlling spin exchange interactions of ultracold atoms in optical lattices.
TLDR
It is illustrated how this technique can be used to efficiently "engineer" quantum spin systems with desired properties, for specific examples ranging from scalable quantum computation to probing a model with complex topological order that supports exotic anyonic excitations. Expand
Simulation of quantum dynamics with quantum optical systems
TLDR
The use of quantum optical systems to perform universal simulation of quantum dynamics and average Hamiltonian techniques are used to achieve evolutions in time according to a large class of Hamiltonians. Expand
QUANTUM LOGIC GATES IN OPTICAL LATTICES
We propose a new system for implementing quantum logic gates: neutral atoms trapped in a very far-off-resonance optical lattice. Pairs of atoms are made to occupy the same well by varying theExpand
Quantum computations with atoms in optical lattices: marker qubits and molecular interactions
We develop a scheme for quantum computation with neutral atoms, based on the concept of ``marker'' atoms, i.e., auxiliary atoms that can be efficiently transported in state-independent periodicExpand
Manipulation of single neutral atoms in optical lattices (5 pages)
We analyze a scheme to manipulate quantum states of neutral atoms at individual sites of optical lattices using focused laser beams. Spatial distributions of focused laser intensities induceExpand
Controlled atom dynamics in a double-well optical lattice
We report on the experimental demonstration of dynamic control of the motional state of atoms in a 2D double-well optical lattice. First we describe experiments in which the atomic distributionsExpand
...
1
2
3
4
...