Publication: Quantum simulation of the cooperative Jahn-Teller transition in 1D Ion crystals
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American Physical Society
The Jahn-Teller effect explains distortions and nondegenerate energy levels in molecular and solid-state physics via a coupling of effective spins to collective bosons. Here we propose and theoretically analyze the quantum simulation of a many-body Jahn-Teller model with linear ion crystals subjected to magnetic field gradients. We show that the system undergoes a quantum magnetic structural phase transition which leads to a reordering of particle positions and the formation of a spin-phonon quasicondensate in mesoscopic ion chains.
©2012 American Physical Society We acknowledge E Uprojects (STREP PICC and IP AQUTE), QUITEMAD S2009-ESP-1594, FIS2009-10061, CAM-UCM/910758, RyC Contract No. Y200200074, the Bulgarian NSF D002-90/08, DMU03/107, and the German Science Foundation within the SFB-TRR49. D. P. thanks Adolfo del Campo for discussions.