Local Marking of States and Unitary Operators

The talk will focus on introducing the task of Local Marking 
(LM), where some multipartite quantum states/unitary operators chosen 
randomly from a set of states/operators are distributed among spatially 
separated parties without revealing the identities of individual 
states/operators. The collaborative aim of the parties is to correctly 
mark (identify) the identities of the states/operators under the 
operational paradigm of LOCC. This task is distinctly different from the 
well known LOCC distinguishability and demonstrate a stronger 
manifestation of nonlocality without entanglement through the 
construction of globally distinguishable unitaries. The talk will also 
explore entanglement assisted marking of states, and the hierarchy of 
probes - entangled and product - in context of local marking with 
respect to the standard discrimination scenario.