Catch and release of propagating bosonic field with non-Markovian giant atom

Author:

Xu LutingORCID,Guo LingzhenORCID

Abstract

Abstract The non-Markovianity of physical systems is considered to be a valuable resource that has potential applications to quantum information processing. The control of traveling quantum fields encoded with information (flying qubit) is crucial for quantum networks. In this work, we propose to catch and release the propagating photon/phonon with a non-Markovian giant atom, which is coupled to the environment via multiple coupling points. Based on the Heisenberg equation of motion for the giant atom and field operators, we calculate the time-dependent scattering coefficients from the linear response theory and define the criteria for the non-Markovian giant atom. We analyze and numerically verify that the field bound states due to non-Markovianity can be harnessed to catch and release the propagating bosonic field on demand by tuning the parameters of giant atom.

Funder

National Natural Science Foundation of China

Publisher

IOP Publishing

Subject

General Physics and Astronomy

Reference75 articles.

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