Haddadi Saeed, Ghominejad Mehrdad, Akhound Ahmad, Pourkarimi Mohammad Reza
Faculty of Physics, Semnan University, P.O.Box 35195-363, Semnan, Iran.
Department of Physics, Payame Noor University, P.O.Box 19395-3697, Tehran, Iran.
Sci Rep. 2021 Nov 22;11(1):22691. doi: 10.1038/s41598-021-02045-0.
The uncertainty principle is known as a foundational element of quantum theory, providing a striking lower bound to quantify our prediction for the measured result of two incompatible observables. In this work, we study the thermal evolution of the entropic uncertainty bound in the presence of quantum memory for an inhomogeneous four-qubit spin-star system that is in the thermal regime. Intriguingly, our results show that the entropic uncertainty bound can be controlled and suppressed by adjusting the inhomogeneity parameter of the system.
不确定性原理是量子理论的一个基本要素，它为量化我们对两个不相容可观测量测量结果的预测提供了一个惊人的下限。在这项工作中，我们研究了处于热平衡态的非均匀四量子比特自旋星系统在存在量子记忆的情况下熵不确定性界的热演化。有趣的是，我们的结果表明，熵不确定性界可以通过调整系统的非均匀性参数来控制和抑制。
