Quantum input-output response analysis is a useful method for modeling the dynamics of complex quantum networks, such as those for communication or quantum control via cascade connections. Non-Markovian effects are expected to be important in networks realized using mesoscopic circuits, but such effects have not yet been studied. Here we extend the Markovian input-output network formalism to non-Markovian networks. The general formalism can be applied to various examples: (i) we show how non-Markovian coherent feedback can reduce the speed of decoherence for an atom in an optical cavity; (ii) we examine the effect of finite-cavity bandwidths in a superconducting circuit. DOI: 10.1103/PhysRevA.87.032117
语种:
英语
WOS标题词:
Science & Technology
; Physical Sciences
类目[WOS]:
Optics
; Physics, Atomic, Molecular & Chemical
关键词[WOS]:
TRAPPED IONS
; SYSTEMS
; FEEDBACK
; DYNAMICS
; OPTICS
1.Department of Automation, Tsinghua University, Beijing 100084, China 2.Center for Quantum Information Science and Technology, TNList, Beijing 100084, China 3.Advanced Science Institute, RIKEN, Wako-shi, Saitama, 351-0198, Japan 4.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China 5.Institute of Microelectronics, Tsinghua University, Beijing 100084, China 6.Department of Physics, University of Massachusetts at Boston, Boston, MA 02125, United States 7.Physics Department, University of Michigan, Ann Arbor, MI 48109-1040, United States
