The possibility of masking an accelerated two-qubit system by using a minimum number of qubits is discussed. It is shown that the information may be masked in either entangled local states or product non-local separable states. We examine that each partition of these states satisfies the masking conditions. Due to the presence of non-local separable partition, one may consider that it is a type of quantum data hiding scheme. The local/non-local information encoded in the masked entangled state is robust against the decoherence of the acceleration process. The possibility of estimating the acceleration parameter via the entangled/separable masked state increases as the initial entanglement value increases. The efficiency of the masking process is examined by quantifying the fidelity of the accelerated state and its subsystems. It is shown that the fidelity of the masked state is maximum at small initial acceleration, while the minimum fidelity is more than 96%.

讨论了通过使用最少数量的量子位来掩盖加速的两个量子位系统的可能性。结果表明，信息可能在纠缠的局部状态或乘积非局部可分离状态下被掩盖。我们检查这些状态的每个分区是否满足屏蔽条件。由于存在非局部可分离分区，因此可以认为这是一种量子数据隐藏方案。以屏蔽纠缠状态编码的本地/非本地信息对于加速过程的退相干具有鲁棒性。随着初始纠缠值的增加，经由纠缠/分离的掩蔽状态估计加速度参数的可能性增加。通过量化加速状态及其子系统的保真度来检查屏蔽过程的效率。