Using entanglement entropy to study quantum phase transitions
Abstract:
In recent years, the concept of entanglement entropy has been introduced into the study of condensed matter system. Entanglement entropy can be used to characterize classical and quantum phase transitions, as well as novel quantum states which are not belong to the Landau-Ginzburg symmetry-breaking paradigm. In this talk, the concept of entanglement, entanglement entropy, and area law will be introduced in a pedagogical manner. Furthermore, the numeric implement of the measurement of entanglement entropy will be discussed within the context of quantum Monte Carlo simulations. An concrete example in quantum spin system, where the entanglement entropy has been applied to characterize the quantum phase transition is demonstrated.
References
Roger Melko
http://online.kitp.ucsb.edu/online/fragnets_c12/melko
Tarun Grover
http://online.kitp.ucsb.edu/online/fragnets_c12/grover
Xiao-Gang Wen
http://online.kitp.ucsb.edu/online/fragnets_c12/wen
Time: Nov. 13, Tuesday, noon.
Location: Rm. 435, Nicholson Hall.
Foods and drinks will be provided.
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