研究目的
To propose a set of product states that require infinite rounds of measurements to distinguish perfectly by LOCC, thereby demonstrating their local indistinguishability.
研究成果
The paper concludes that by appending a set of LOCC indistinguishable product states with two nonorthogonal states, another LOCC indistinguishable set can be obtained. This result expands the understanding of nonlocality without entanglement and suggests new directions for constructing nonlocal product states.
研究不足
The study is theoretical and does not address practical implementation challenges or experimental verification. The method is limited to sets of states where no local system can start with a nontrivial measurement.