3 papers
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-ph2025
Efficient entanglement-assisted discrimination of a class of many-copy indistinguishable sets
Abhay Srivastav, Saronath Halder
We explore entanglement as a resource to distinguish locally indistinguishable orthogonal quantum states. Specifically, we consider sets which contain states from an unextendible p…
quant-ph2024
Effect of measurements on quantum speed limit
Abhay Srivastav, Vivek Pandey, Arun K Pati
Given the initial and final states of a quantum system, the speed of transportation of state vector in the projective Hilbert space governs the quantum speed limit. Here, we ask th…