RT Journal Article
T1 Simulation of the Jahn-Teller-Dicke magnetic structural phase transition with trapped ions
A1 Ivanov, Peter A.
A1 Porras Torres, Diego
A1 Ivanov, Svetoslav S.
A1 Schmidt-Kaler, Ferdinand
AB We study theoretically the collective E circle times e Jahn-Teller-Dicke distortion in a system of trapped ions. In a previous work (Porras et al 2012 Phys. Rev. Lett. 108 235701) we have focused on cooperative Jahn-Teller models consisting of an ensemble of effective spins coupled to a set of many vibrational modes. Here, we show that under suitable conditions the spin ensemble may interact only with a single vibrational mode in each radial direction with U(1) symmetric couplings. Our model is exactly solvable in the thermodynamical limit and it is amenable to be solved by exact numerical diagonalization for a moderate number of ions. We show that trapped ions are ideally suited to study the spontaneous breaking of a continuous symmetry as well as magnetic structural phase transitions in a mesoscopic spin-boson system.
PB IOP Publishing Ltd
SN 0953-4075
YR 2013
FD 2013-05-28
LK https://hdl.handle.net/20.500.14352/35598
UL https://hdl.handle.net/20.500.14352/35598
LA eng
NO © IOP Publishing LtdThis work has been supported by the Bulgarian NSF grants D002-90/08, DMU- 03/103, DMU-03/107, the EU 7th Framework Programme collaborative project iQIT and RyC Contract No. Y200200074. P. A. Ivanov acknowledges the COST Action MP IOTA 1001.
NO Unión Europea. FP7
NO Bulgarian NSF
NO RyC
NO COST Action MP
NO IOTA
DS Docta Complutense
RD 21 abr 2025