Towards (scalable) quantum simulations in ion traps

Schaetz, Tobias; Friedenauer, Axel; Schmitz, Hector; Petersen, L.; Kahra, Steffen

doi:10.1080/09500340701639631

Cited by 50 publications

(71 citation statements)

References 11 publications

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“…Finally, two-and three-dimensional optical lattices might provide an alternative approach for ion trap architectures [12,21,25,26]. One can consider, for example, to implement QS with trapped ions [27,28] in larger, higher-dimensional systems with the Coulomb force providing long range interaction beyond nearest neighbors.…”

Section: Discussionmentioning

confidence: 99%

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Optical trapping of an ion

et al. 2010

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For several decades, ions have been trapped by radio frequency (RF) and neutral particles by optical fields. We implement the experimental proof-of-principle for trapping an ion in an optical dipole trap. While loading, initialization and final detection are performed in a RF trap, in between, this RF trap is completely disabled and substituted by the optical trap. The measured lifetime of milliseconds allows for hundreds of oscillations within the optical potential. It is mainly limited by heating due to photon scattering. In future experiments the lifetime may be increased by further detuning the laser and cooling the ion. We demonstrate the prerequisite to merge both trapping techniques in hybrid setups to the point of trapping ions and atoms in the same optical potential.

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Section: Discussionmentioning

confidence: 99%

“…* Electronic address: tobias.schaetz@mpq.mpg.de A single 24 Mg + ion is created by photo-ionization from neutral Mg atoms evaporated from an oven. It is Doppler cooled to a few mK (Doppler cooling limit: 1 mK) in a segmented linear RF trap [12] (Fig. 1A).…”

Section: Introductionmentioning

confidence: 99%

Optical trapping of an ion

et al. 2010

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“…Anyway, we hope to take advantage of the miniaturization and surface trap technology developed by the community of QC [21,24], even though we are pushing towards a different objective: a real two-dimensional array of traps [23]. We plan to place linear surface ion traps close enough besides each other to provide stiff and controllable confinement of each ion individually, but to allow for sufficient Coulomb coupling (simulating e.g.…”

Section: Discussionmentioning

confidence: 99%

“…As the next step but to be faced in parallel, we will investigate the scalability of this approach to two-dimensional systems (within a feasibility study on two times two spins [23]). For this purpose, we will have to develop new micro fabricated cryogenic trapping structures.…”

Section: Discussionmentioning

confidence: 99%

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The “arch” of simulating quantum spin systems with trapped ions

et al. 2009

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We cannot translate quantum behavior arising with superposition states or entanglement efficiently into the classical language of conventional computers (Feynman et al. in Int. J. Theor. Phys. 21:467, 1982). A universal quantum computer could describe and help to understand complex quantum systems. But it is envisioned to become functional only within the next decade(s). A shortcut was proposed via simulating the quantum behavior of interest in another quantum system, where all relevant parameters and interactions can be controlled and observables of interest detected sufficiently well. For example simulating quantum spin systems within an architecture of trapped ions (Porras and Cirac in Phys. Rev. Lett. 92:207901, 2004). Here we specify how we simulate the spin and all necessary interactions and how we calibrate their amplitudes. For example via a two-ion phase-gate operation on two axial motional modes simultaneously at a fidelity exceeding 95%. We explain the complete mode of operation of a quantum simulator on the basis of our simple model case-the proof of principle experiment of simulating the transition of a quantum magnet from paramagnetic into entangled ferromagnetic order (Friedenauer et al. in Nat. Phys. 4:757, 2008) and emphasize some of the similarities and differences with a quantum computer.

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Superposition, entanglement, and raising Schrödinger's cat

Wineland

2013

Annalen der Physik

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Towards (scalable) quantum simulations in ion traps

Cited by 50 publications

References 11 publications

Optical trapping of an ion

Optical trapping of an ion

The “arch” of simulating quantum spin systems with trapped ions

Superposition, entanglement, and raising Schrödinger's cat

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