论文标题
疾病和相互作用对环境辅助量子运输的影响
Effects of disorder and interactions on environment assisted quantum transport
论文作者
论文摘要
了解障碍，环境和相互作用之间的相互作用是阐明开放量子系统的传输特性的关键，从光合网络中的激子到离子陷阱中的Qubits。从理论上研究了这种相互作用在环境辅助量子运输（ENAQT）的背景下进行的，这是一个开放系统中的独特情况，环境引起的倾向可以违反直觉增强运输。首先，我们表现出令人惊讶的情况，即使粒子电流随着障碍的增加而生长，即使不进行驱动。然后，我们建议对ENAQT的特定机制（我们将种群均匀化），并证明它可以解释ENAQT深入到疾病引起的定位方案中的持久性。最后，我们表明排斥相互作用对ENAQT有害，并导致环境损害的量子运输。我们的预测很容易在粒子当前实验能力的范围内进行测试。
Understanding the interplay between disorder, environment and interactions is key to elucidating the transport properties of open quantum systems, from excitons in photosynthetic networks to qubits in ion traps. This interplay is studied here theoretically in the context of environment-assisted quantum transport (ENAQT), a unique situation in open system where an environment-induced dephasing can, counter-intuitively, enhance transport. First, we show a surprising situation where the particle current grows with increasing disorder, even without dephasing. Then, we suggest a specific mechanism for ENAQT (which we dub population uniformization) and demonstrate that it can explain the persistence of ENAQT deep into the disorder-induced localization regime. Finally, we show that repulsive interactions are detrimental to ENAQT, and lead to an environment-hampered quantum transport. Our predictions can readily be tested within the scope of particle current experimental capabilities.
