22 citations · 48 across the 8 of their papers we have counts for
5 papers · 1 filter
Spread complexity evolution in quenched interacting quantum systems
Mamta Gautam, Kunal Pal, Kuntal Pal +3
We analyse time evolution of spread complexity (SC) in an isolated interacting quantum many-body system when it is subjected to a sudden quench. The differences in characteristics…
Spread Complexity in free fermion models
Mamta Gautam, Nitesh Jaiswal, Ankit Gill
We study spread complexity and the statistics of work done for quenches in the three-spin interacting Ising model, the XY spin chain, and the Su-Schrieffer-Heeger model. We study t…
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…
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…
Complexity, Information Geometry, and Loschmidt Echo near Quantum Criticality
Nitesh Jaiswal, Mamta Gautam, Tapobrata Sarkar
We consider the Nielsen complexity , the Loschmidt echo , and the Fubini-Study complexity in the transverse XY model, following a sudden quantum q…