First order quantum phase transitions of the XX spin-1/2 chain in a uniform transverse field

2007 ◽  
Vol 367 (6) ◽  
pp. 450-453 ◽  
Author(s):  
Feng Pan ◽  
Nan Ma ◽  
Xin Guan ◽  
J.P. Draayer
2004 ◽  
Vol 93 (23) ◽  
Author(s):  
Anatoly Kuklov ◽  
Nikolay Prokof'ev ◽  
Boris Svistunov

2007 ◽  
Vol 310 (2) ◽  
pp. 828-834 ◽  
Author(s):  
M.A. Continentino ◽  
A.S. Ferreira

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