论文标题
耗散储层的连续变化量子传感
Continuous-variable quantum sensing of a dissipative reservoir
论文作者
论文摘要
我们提出了一种连续变量的量子传感方案，其中使用谐波振荡器作为探测器在非马克维亚动力框架内估算量子储层光谱密度中的参数。 It is revealed that the sensing sensitivity can be effectively boosted by (i) optimizing the weight of the momentum-position-type coupling in the whole probe-reservoir interaction Hamiltonian, (ii) the initial quantum squeezing resource provided by the probe, (iii) the noncanonical equilibration induced by the non-Markovian effect, and (iv) applying an external driving field.我们的结果可能在理解和控制耗散性连续变化系统的破裂性方面具有一些潜在的应用。
We propose a continuous-variable quantum sensing scheme, in which a harmonic oscillator is employed as the probe to estimate the parameters in the spectral density of a quantum reservoir, within a non-Markovian dynamical framework. It is revealed that the sensing sensitivity can be effectively boosted by (i) optimizing the weight of the momentum-position-type coupling in the whole probe-reservoir interaction Hamiltonian, (ii) the initial quantum squeezing resource provided by the probe, (iii) the noncanonical equilibration induced by the non-Markovian effect, and (iv) applying an external driving field. Our results may have some potential applications in understanding and controlling the decoherence of dissipative continuous-variable systems.
