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Showing 2000 · hep-phShow all
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hep-ph2000★ 15 cited
Emergence of Classicality in Quantum Phase Transitions
Sang Pyo Kim, Chul H. Lee
We show that classicality emerges during quantum phase transitions due to parametric interactions without coupling to environments. The Wigner functions are explicitly calculated f…
hep-ph2000★ 51 cited
Nonequilibrium Quantum Dynamics of Second Order Phase Transitions
Sang Pyo Kim, Chul H. Lee
We use the so-called Liouville-von Neumann (LvN) approach to study the nonequilibrium quantum dynamics of time-dependent second order phase transitions. The LvN approach is a canon…