First order phase transitions in unbounded spin systemsI: Construction of the phase diagram
نویسندگان
چکیده
منابع مشابه
First order quantum phase transitions in the XX spin chain
Quantum phase transitional behavior of a finite periodic XX spin1 2 chain with nearest neighbor interaction in a uniform transverse field is studied based on the simple exact solutions. It is found that there are [N/2] quantum critical points in the ground state, where N is the periodic number of the system and [x] stands for the integer part of x, when the interaction strength and magnitude of...
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ژورنال
عنوان ژورنال: Communications in Mathematical Physics
سال: 1989
ISSN: 0010-3616,1432-0916
DOI: 10.1007/bf02125127