Cavity quantum electrodynamics for superconducting electrical circuits: An architecture for quantum computation
Cavity quantum electrodynamics for superconducting electrical circuits: An architecture for quantum computation
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DOI：
10.1103/physreva.69.062320
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发表时间：
2004-06-01
影响因子：
2.9
通讯作者：
Schoelkopf, RJ
中科院分区：
文献类型：
--
作者：
Blais, A;Huang, RS;Schoelkopf, RJ
我们提出了一个可实现的架构，使用一维传输线谐振器，以达到超导电路中的腔量子电动力学的强耦合极限。腔光子耦合到相邻电路（量子位）的量子化激发的真空拉比频率可以很容易地超过腔和量子位的阻尼率。这种架构作为原子物理实验的宏观模拟以及量子计算和控制都是有吸引力的，因为它提供了对自发辐射的强烈抑制，可能导致大大增强的量子比特寿命，允许对多个量子比特的状态进行高保真量子非破坏测量，并且具有用于分离厘米距离的量子比特纠缠的自然机制。此外，它将允许产生对量子通信至关重要的微波光子态。
We propose a realizable architecture using one-dimensional transmission line resonators to reach the strong-coupling limit of cavity quantum electrodynamics in superconducting electrical circuits. The vacuum Rabi frequency for the coupling of cavity photons to quantized excitations of an adjacent electrical circuit (qubit) can easily exceed the damping rates of both the cavity and qubit. This architecture is attractive both as a macroscopic analog of atomic physics experiments and for quantum computing and control, since it provides strong inhibition of spontaneous emission, potentially leading to greatly enhanced qubit lifetimes, allows high-fidelity quantum nondemolition measurements of the state of multiple qubits, and has a natural mechanism for entanglement of qubits separated by centimeter distances. In addition it would allow production of microwave photon states of fundamental importance for quantum communication.