Simulating quantum spin models using Rydberg-excited atomic ensembles in magnetic microtrap arrays
We propose a scheme to simulate lattice spin models based on strong, long-range interacting Rydberg atoms stored in a large-spacing array of magnetic microtraps. Each spin is encoded in a collective spin state involving a single nS or ##IMG## [http://ej.iop.org/images/0953-4075/50/7/074001/jpbaa6149...
Gespeichert in:
| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
10 March 2017
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| In: |
Journal of physics. B, Atomic, molecular and optical physics
Year: 2017, Jahrgang: 50, Heft: 7, Pages: 074001 |
| ISSN: | 1361-6455 |
| DOI: | 10.1088/1361-6455/aa6149 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1088/1361-6455/aa6149 Verlag, Volltext: http://stacks.iop.org/0953-4075/50/i=7/a=074001 
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| Verfasserangaben: | Shannon Whitlock, Alexander W. Glaetzle, Peter Hannaford |
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| 520 | |a We propose a scheme to simulate lattice spin models based on strong, long-range interacting Rydberg atoms stored in a large-spacing array of magnetic microtraps. Each spin is encoded in a collective spin state involving a single nS or ##IMG## [http://ej.iop.org/images/0953-4075/50/7/074001/jpbaa6149ieqn1.gif] $(n+1)S$ Rydberg atom excited from an ensemble of ground-state alkali atoms prepared via Rydberg blockade. After the excitation laser is switched off, the Rydberg spin states on neighbouring lattice sites interact via general XXZ spin-spin interactions. To read out the collective spin states we propose a single Rydberg atom triggered avalanche scheme in which the presence of a single Rydberg atom conditionally transfers a large number of ground-state atoms in the trap to an untrapped state which can be readily detected by site-resolved absorption imaging. Such a quantum simulator should allow the study of quantum spin systems in almost arbitrary one-dimensional and two-dimensional configurations. This paves the way towards engineering exotic spin models, such as spin models based on triangular-symmetry lattices which can give rise to frustrated-spin magnetism. | ||
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