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Non-Gaussian State Generation from Linear Elements via Feedback

Date

Authors

Yanagisawa, Masahiro

Publisher

American Physical Society

Abstract

We present a feedback scheme to produce quantum non-Gaussian states from linear optical elements. Instead of traditional additive control methods, we introduce a mutiplicative feedback control and apply it to the deterministic generation of quantum superposition states. The protocol of feedback control is based on quantum nondemolition measurement of a quadrature, multifeedback structure, and Lyapunov stability for feedback design.

Keywords

Keywords: Control methods; Feedback designs; Feedback scheme; Linear element; Linear optical elements; Lyapunov stability; Non-Gaussian state; Non-Gaussian state generation; Quantum nondemolition measurements; Quantum superposition state; Control theory; Feedback c

URI

http://hdl.handle.net/1885/58249

Collections

ANU Research Publications

Source

Physical Review Letters

Type

Journal article

DOI

10.1103/PhysRevLett.103.203601

Restricted until

2037-12-31

Downloads

File

Description

01_Yanagisawa_Non-Gaussian_State_Generation_2009.pdf (611.34 KB)