3 papers
quant-ph2025
Fundamental limitations on the recoverability of quantum processes
Sohail, Vivek Pandey, Uttam Singh +1
Quantum information processing and computing tasks can be understood as quantum networks, comprising quantum states and channels and possible physical transformations on them. It i…
quant-ph2025
Family of Exact and Inexact Quantum Speed Limits for Completely Positive and Trace-Preserving Dynamics
Abhay Srivastav, Vivek Pandey, Brij Mohan +1
Traditional quantum speed limits formulated in density matrix space are generally unattainable for a wide class of dynamics and it is difficult to characterize the fastest possible…
quant-ph2024
Conditional entropy and information of quantum processes
Siddhartha Das, Kaumudibikash Goswami, Vivek Pandey
What would be a reasonable definition of the conditional entropy of bipartite quantum processes, and what novel insight would it provide? We develop this notion using four informat…