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quant-ph2022
FOTOC complexity in an extended Lipkin-Meshkov-Glick model
Nitesh Jaiswal, Mamta Gautam, Ankit Gill +1
We study fidelity out-of-time-order correlators (FOTOCs) in an extended Lipkin-Meshkov-Glick model and demonstrate that these exhibit distinctive behaviour at quantum phase transit…
quant-ph2022★ 7 cited
Complexity and quenches in models with three and four spin interactions
Mamta Gautam, Nitesh Jaiswal, Ankit Gill +1
We study information theoretic quantities in models with three and four spin interactions. These models show distinctive characteristics compared to their nearest neighbour counter…