Frustrated Quantum Spin Models with Cold Coulomb Crystals

Details Frustrated Quantum Spin Models with Cold Coulomb Crystals Frustrated Quantum Spin Models with Cold Coulomb Crystals

2011-08-04

arxiv.org/abs/1108.1024v2

Phys. Rev. Lett. 107, 207209 (2011)

Physics

Quantum Physics

replaced with published version

Scientific paper

10.1103/PhysRevLett.107.207209

We exploit the geometry of a zig-zag cold-ion crystal in a linear trap to propose the quantum simulation of a paradigmatic model of long-ranged magnetic frustration. Such a quantum simulation would clarify the complex features of a rich phase diagram that presents ferromagnetic, dimerized antiferromagnetic, paramagnetic, and floating phases, together with previously unnoticed features that are hard to assess by numerics. We analyze in detail its experimental feasibility, and provide supporting numerical evidence on the basis of realistic parameters in current ion-trap technology.

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