3 papers
quant-ph2026
Quantum SWITCH-induced non-Markovianity is not entirely quantum
Rajeev Gangwar, Ananda G. Maity
Indefinite causal order extends quantum information processing beyond fixed causal structures, with the quantum SWITCH serving as its canonical realization. By coherently superposi…
quant-ph2026
Genuine and Non-Genuine Quantum Non-Markovianity: A Unified Information-Theoretic Review
Rajeev Gangwar, Ujjwal Sen
Understanding whether the features of open quantum dynamics are genuinely quantum remains a central challenge in quantum dynamics. Even though the non-Markovian behavior of quantum…
quant-ph2024
Causal and Non-Causal Revivals of Information: A New Regime of Non-Markovianity in Quantum Stochastic Processes
Francesco Buscemi, Rajeev Gangwar, Kaumudibikash Goswami +5
The study of information revivals, witnessing the violation of certain data-processing inequalities, has provided an important paradigm in the study of non-Markovian quantum stocha…