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Q: Fachverband Quantenoptik und Photonik

Q 23: Poster 2: Intersectional Session

Q 23.40: Poster

Dienstag, 15. März 2011, 18:00–21:00, P1

Phase transitions in ion chains — •Luis Rico Pérez and James R. Anglin — Technische Universität Kaiserslautern, Germany

The interest in the understanding of the behavior of low dimensional cooled ion structures has recently grown due to the suggested possibility of using them to implement quantum information processors and simulators [1]. We identify and classify the different possible phase transitions of an ion chain depending on strength and asymmetry of the trapping potential. Our results for the regime where the line and zig-zag configurations are stable agrees with previous studies for homogeneous traps [2] and we extend this by considering also transitions to 3D structures as well.

[1] J. I. Cirac, P. Zoller, PRL 74, 4091 (1995); D. Leibfried et al, Nature 422, 412 (2003); D. Porras, J. I. Cirac, PRL 92, 207901 (2004)

[2] S. Fishman, G. De Chiara, T. Calarco, G. Morigi, PRB 77, 064111 (2008)