Structural phase transitions in low-dimensional ion crystals

Structural phase transitions in low-dimensional ion crystals

Shmuel Fishman,1 Gabriele De Chiara,2,3 Tommaso Calarco,4 and Giovanna Morigi2 1Department of Physics, Technion, 32000 Haifa, Israel 2Grup d’Optica, Departament de Fisica, Universitat Autonoma de Barcelona, 08193 Bellaterra, Spain 3BEC-CNR-INFM & Physics Department, University of Trento, Via Sommarive 14, I-38050 Povo (TN) Italy 4Institute for Quantum Information Processing, University of Ulm, ...

Exploring structural phase transitions of ion crystals

Phase transitions have been a research focus in many-body physics over past decades. Cold ions, under strong Coulomb repulsion, provide a repealing paradigm of exploring phase transitions in stable confinement by electromagnetic field. We demonstrate various conformations of up to sixteen laser-cooled (40)Ca(+) ion crystals in a home-built surface-electrode trap, where besides the usually menti...

Optically induced structural phase transitions in ion Coulomb crystals

Peter Horak,1 Aurélien Dantan,2 and Michael Drewsen2 1Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, United Kingdom 2QUANTOP, Danish National Research Foundation Center for Quantum Optics, Department of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus C, Denmark (Received 14 February 2012; revised manuscript received 10 August 2012; published 31 Oct...

Vibrational Spectroscopy and Structural Phase Transitions in Molecular Crystals

Vibrational spectroscopy can give useful informa tian, both structural and dynamical, about phase transitions in molecular crystals. In particular, the data concerning the mechanism of the transformation at molecular level can be obtained. This is illustrated by examples of pure van der Waals crystals such as 3,5-dichloropyridine and 4-methylpyridine, hydrogen bonded malonic acid, inorganic fer...

Phase transitions in liquid crystals