论文标题
与环境噪音的量子电池相互作用的旋转
Quantum battery of interacting spins with environmental noise
论文作者
论文摘要
量子电池是一个临时的能量存储系统。我们构建了N-Spin链的量子电池模型，该链具有最近的邻次跳跃相互作用，并研究了量子电池的充电过程。我们在连贯的腔驱动场或热热浴中收取的量子电池中获得了最大能量。我们确认，对于有限的自旋链，热充电会导致非零的麦内型，这与先前的结果相矛盾：不一致的热源无法为单旋量量子电池充电。最近的邻居跳跃相互作用会诱导能带分裂，从而增强了量子电池的能量储存和麦角镜。我们发现地基量量相变产生的能量和麦内型的临界点，之后能量显着增强。最后，我们还发现疾病增加了量子电池的能量。
A quantum battery is a temporary energy-storage system. We constructed the quantum battery model of an N-spin chain with nearest-neighbor hopping interaction and investigated the charging process of the quantum battery. We obtained the maximum energy in the quantum battery charged by a coherent cavity driving field or a thermal heat bath. We confirmed that for a finite-length spin chain, thermal charging results in a nonzero ergotropy, contradicting a previous result: that an incoherent heat source cannot charge a single-spin quantum battery. The nearest-neighbor hopping interaction induces energy band splitting, which enhances the energy storage and the ergotropy of the quantum battery. We found a critical point in the energy and ergotropy resulting from the ground-state quantum phase transition, after which the energy significantly enhance. Finally, we also found that disorder increased the energy of the quantum battery.
