Coherent observer engineering for protecting quantum information

Pan, Yu; Nguyen, Thien; Zhang, Miao; Amini, Nina H.; Ugrinovski, Valeri; James, Matthew R.

doi:10.1109/chicc.2016.7554812

Cited by 2 publications

(7 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this paper, we build our technique using the most general type of dynamic linear passive coherent feedback. We show that the controller structures from [12,17] are in fact special cases of our general setting. In addition, we discuss the conventional open-loop approach to reservoir engineering and show the shortcoming of such approach.…”

Section: Introductionmentioning

confidence: 89%

“…Note that matricesÂ andǍ can be rewritten aŝ Figure 3: Coherent plant-observer network considered in [12].…”

Section: Coherent Feedback Reservoir Engineeringmentioning

confidence: 99%

“…Also, the DFS synthesis methodology proposed here extends substantially our preliminary work [12]. The controller configuration in that paper was limited to resembling a classical Luenberger observer.…”

Section: Introductionmentioning

confidence: 97%

See 2 more Smart Citations

Pole placement approach to coherent passive reservoir engineering for storing quantum information

Nguyen

Zhang

Pan

et al. 2017

Control Theory Technol.

Self Cite

View full text Add to dashboard Cite

Reservoir engineering is the term used in quantum control and information technologies to describe manipulating the environment within which an open quantum system operates. Reservoir engineering is essential in applications where storing quantum information is required. From the control theory perspective, a quantum system is capable of storing quantum information if it possesses a so-called decoherence free subsystem (DFS). This paper explores pole placement techniques to facilitate synthesis of decoherence free subsystems via coherent quantum feedback control. We discuss limitations of the conventional 'open loop' approach and propose a constructive feedback design methodology for decoherence free subsystem engineering. It captures a quite general dynamic coherent feedback structure which allows systems with decoherence free modes to be synthesized from components which do not have such modes.

show abstract

Section: Introductionmentioning

confidence: 89%

“…Note that matricesÂ andǍ can be rewritten aŝ Figure 3: Coherent plant-observer network considered in [12].…”

Section: Coherent Feedback Reservoir Engineeringmentioning

confidence: 99%

See 1 more Smart Citation

Pole placement approach to coherent passive reservoir engineering for storing quantum information

Nguyen

Zhang

Pan

et al. 2017

Control Theory Technol.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Note that matricesÂ andǍ can be rewritten aŝ A necessary condition to ensure that an eigenvalue assignment can be carried out for these matrices by se- We next demonstrate that our pole assignment problem captured quantum plant-controller DFS architectures considered in [12,17].…”

Section: Proofmentioning

confidence: 99%

“…3.3 Special case 1: DFS synthesis using a coherent observer [12] In [12], the DFS synthesis was carried out using a quantum analog of the Luenberger observer for a class of linear annihilation only systems with a Hamiltonian and a coupling operator described in (12), (13); see Fig. 3.…”

Section: Proofmentioning

confidence: 99%