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

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.

arXiv comment26 pages, 7 figures

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• Dressed Interference in Giant Superatoms: Entanglement Generation and Transfer
• Simulating and probing many-body quantum states in waveguide-QED systems with giant atoms
• Harnessing spontaneous emission of correlated photon pairs from ladder-type giant atoms
• Giant atom with disorders: Effects from imperfect couplings
• Exotic collective behaviors of giant quantum emitters in two-dimensional baths
• Strongly coupled giant-atom waveguide quantum electrodynamics
• Nonreciprocity enhanced Quantum Gyroscopes based on Surface Acoustic Waves
• Oscillating bound states in waveguide-QED system with two giant atoms
• Non-Markovian exceptional points in waveguide quantum electrodynamics