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Quantum Entanglement in Double Quantum Systems and Jaynes-Cummings Model

机译:双量子系统和Jaynes-Cummings模型中的量子纠缠

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摘要

In the paper, we proposed a new approach to producing the qubits in electron transport in low-dimensional structures such as double quantum wells or double quantum wires (DQW). The qubit could arise as a result of quantum entanglement of two specific states of electrons in DQW structure. These two specific states are the symmetric and antisymmetric (with respect to inversion symmetry) states arising due to tunneling across the structure, while entanglement could be produced and controlled by means of the source of nonclassical light. We examined the possibility to produce quantum entanglement in the framework of Jaynes-Cummings model and have shown that at least in principle, the entanglement can be achieved due to series of “revivals” and “collapses” in the population inversion due to the interaction of a quantized single-mode EM field with a two-level system.
机译:在本文中,我们提出了一种在低维结构(如双量子阱或双量子线(DQW))中的电子传输中产生量子位的新方法。量子位可能由于DQW结构中电子的两个特定状态的量子纠缠而产生。这两个特定的状态是由于穿过整个结构的隧穿而产生的对称和反对称(相对于反转对称性)状态,而缠结可以通过非经典光源产生和控制。我们研究了在Jaynes-Cummings模型框架内产生量子纠缠的可能性,并表明至少在原理上,由于种群相互作用的一系列“复兴”和“崩溃”,可以实现纠缠。具有两级系统的量化单模EM场。

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