Institute for Theoretical Atomic, Molecular and Optical Physics, Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138;
Department of Physics, Harvard University, Cambridge, MA 02138.
Proc Natl Acad Sci U S A. 2017 Oct 24;114(43):11362-11367. doi: 10.1073/pnas.1711003114. Epub 2017 Oct 10.
We propose and analyze a deterministic protocol to generate two-dimensional photonic cluster states using a single quantum emitter via time-delayed quantum feedback. As a physical implementation, we consider a single atom or atom-like system coupled to a 1D waveguide with a distant mirror, where guided photons represent the qubits, while the mirror allows the implementation of feedback. We identify the class of many-body quantum states that can be produced using this approach and characterize them in terms of 2D tensor network states.
我们提出并分析了一种使用单个量子发射器通过时滞量子反馈生成二维光子团簇态的确定性协议。作为一种物理实现，我们考虑了一个与具有远距离镜子的一维波导耦合的单个原子或类原子系统，其中导波光子代表量子位，而镜子允许实现反馈。我们确定了可以使用这种方法产生的多体量子态的类别，并根据二维张量网络态对其进行了表征。
