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Journal articles
Controlling and Detecting Spin Correlations of Ultracold atoms in Optical Lattices
Abstract : We report on the controlled creation of a valence bond state of delocalized effective-spin singlet and triplet dimers by means of a bichromatic optical superlattice. We demonstrate a coherent coupling between the singlet and triplet states and show how the superlattice can be employed to measure the singlet-fraction employing a spin-blockade effect. Our method provides a reliable way to detect and control nearest-neighbor spin correlations in many-body systems of ultracold atoms. Being able to measure these correlations is an important ingredient in studying quantum magnetism in optical lattices. We furthermore employ a SWAP operation between atoms which are part of different triplets, thus effectively increasing their bond-length. Such a SWAP operation provides an important step towards the massively parallel creation of a multiparticle entangled state in the lattice.
Cited literature [13 references]
https://hal-iogs.archives-ouvertes.fr/hal-00746816
Contributor : Marie-Laure Edwards <>
Submitted on : Monday, December 7, 2015 - 11:31:33 AM
Last modification on : Wednesday, December 16, 2020 - 10:04:02 PM
Long-term archiving on: : Tuesday, March 8, 2016 - 12:22:14 PM
Contributor : Marie-Laure Edwards <>
Submitted on : Monday, December 7, 2015 - 11:31:33 AM
Last modification on : Wednesday, December 16, 2020 - 10:04:02 PM
Long-term archiving on: : Tuesday, March 8, 2016 - 12:22:14 PM
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00746816.pdf
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