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cond-mat.quant-gas2024★ 2 cited
Geometric phase and multipartite entanglement of Rydberg atom chains
Chang-Yan Wang
We investigate the behavior of geometric phase (GP) and geometric entanglement (GE), a multipartite entanglement measure, across quantum phase transitions in Rydberg atom chains. U…
cond-mat.quant-gas2024★ 2 cited
The Uhlmann Phase Winding in Bose-Einstein Condensates at Finite Temperature
Chang-Yan Wang, Yan He
We investigate the Uhlmann phase, a generalization of the celebrated Berry phase, for Bose-Einstein condensates (BECs) at finite temperature. The Uhlmann phase characterizes topolo…