Bhattacharyya, ArpanArpanBhattacharyyaHaque, S. ShajidulS. ShajidulHaqueKim, Eugene H.Eugene H.Kim2025-08-312025-08-312021-10-0110.1007/JHEP10(2021)0282-s2.0-85116360624https://d8.irins.org/handle/IITG2025/25271We investigate circuit complexity to characterize chaos in multiparticle quantum systems. In the process, we take a stride to analyze open quantum systems by using complexity. We propose a new diagnostic of quantum chaos from complexity based on the reduced density matrix by exploring different types of quantum circuits. Through explicit calculations on a toy model of two coupled harmonic oscillators, where one or both of the oscillators are inverted, we demonstrate that the evolution of complexity is a possible diagnostic of chaos.trueAdS-CFT Correspondence | Gauge-gravity correspondenceArticlehttps://link.springer.com/content/pdf/10.1007/JHEP10(2021)028.pdf10298479October 20213128arJournal30WOS:000703981700007