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quant-ph2024
State learning from pairs of states
Pranjal Agarwal, Nada Ali, Camilla Polvara +3
Suppose you receive a sequence of qubits where each qubit is guaranteed to be in one of two pure states, but you do not know what those states are. Your task is to determine the st…
quant-ph2023
Two entanglement conditions and their connection to negativity
Mark Hillery, Camilla Polvara, Vadim Oganesyan +1
We examine two conditions that can be used to detect bipartite entanglement, and show that they can be used to provide lower bounds on the negativity of states. We begin with two-q…