摘要The finite temperature properties of self-assembled dipole chains of polar molecules in strongly confined pancake traps are investigated. The single-chain vibrations at finite temperature, which become important for long chains in a strongly interacting regime, are found to lower the transition temperature and to shift the chain distribution by less than 10%. We also propose experimental parameters to observe such quantum phase transition.
Abstract：The finite temperature properties of self-assembled dipole chains of polar molecules in strongly confined pancake traps are investigated. The single-chain vibrations at finite temperature, which become important for long chains in a strongly interacting regime, are found to lower the transition temperature and to shift the chain distribution by less than 10%. We also propose experimental parameters to observe such quantum phase transition.
[1] Doyle J, Friedrich B, Krems R V and Masnouseeuws F 2004 Eur. Phys. J. D 31 149 [2] Stuhler J et al , Griesmaier A, Koch T, Fattori M, Pfau T, GiovanazziS, Pedri P, and Santos L2005 Phys. Rev. Lett. 95 150406 Diener R B and Ho T L 2006 Phys. Rev. Lett. 96 190405 [3] Giovanazzi S, G\"{orlitz and Pfau T 2002 Phys. Rev. Lett. 89 130401 Buchler H P et al , Demler E, Lukin M, Micheli1 A, Prokofev N,Pupillo G and Zoller P 2007 Phys. Rev. Lett. 98 060404 [4] Demille D 2002 Phys. Rev. Lett. 88 067901 Andr\'{e A et al , DeMille D, Doyle J M, Lukin M D, Maxwell S E, Rabl P,Schoelkopf R J and Zoller P 2006 Nature Phys. 2 636 [5] Micheli A, Brennen G K and Zoller P 2006 Nature Phys. 2341 [6] Xie Z W and Liu W M 2004 Phys. Rev. A 70 045602 [7] Xie Z W, Cao Z X, Kats E I and Liu W M 2005 Phys. Rev. A 71 025601 [8] Barnett R, Petrov D, Lukin M and Demler E 2006 Phys.Rev. Lett. 96 090401 [9] Wang Daw-wei 2007 Phys. Rev. Lett. 98 060403 [10] Yi S, Li T and Sun C P 2007 Phys. Rev. Lett. 98 260405 [11] Lushnikov P M 2002 Phys. Rev. A 66 051601 [12] Wang Daw-Wei, Lukin M D and Demler E 2006 Phys. Rev.Lett. 97 180413 [13] Hadzibabic Z et al , Kr\"{uger P, Cheneau M, Battelier B andDalibard J2006 Nature 441 1118 Bloch I 2005 Nature Physics 1 23 [14] Feynmann R P 1998 Statistical Physics (New York:Westview Press) chap 10 p277 [15] Martikainen J P and Stoof H T C 2004 Phys. Rev. A 69 053617 [16] Damski B et al , Zakrzewski J, Santos L, Zoller P and Lewenstein M2003 Phys. Rev. Lett. 91 080403
2008, Vol. 25 
