Dissipation-enabled resonant adiabatic quantum state transfer: Entanglement generation and quantum cloning

TL;DR

This paper explores how dissipation can enable resonant adiabatic quantum state transfer, allowing for entanglement generation and quantum cloning between photons and emitters, with potential applications in various quantum systems.

Contribution

It generalizes previous models by including photon wave packet properties and non-adiabatic effects, demonstrating passive, heralded, and deterministic entanglement and cloning methods.

Findings

Enables Bell state preparation of two quantum emitters.

Facilitates symmetric and asymmetric quantum cloning.

Applicable to waveguide and other adiabatic scenarios.

Abstract

Resonant dissipation-enabled adiabatic quantum state transfer processes between the polarization degrees of freedom of a single photon wave packet and quantum emitters are discussed. These investigations generalize previous work [N. Trautmann and G. Alber, Phys. Rev. A 93, 053807 (2015)] by taking into account the properties of the spontaneously emitted photon wave packet and of non adiabatic corrections. It is demonstrated that the photonic degrees of freedoms of these adiabatic one-photon quantum state transfer processes can be used for the passive, heralded and deterministic preparation of Bell states of two material quantum emitters and for realizing a large family of symmetric and asymmetric quantum cloning processes. Although these theoretical investigations concentrate on waveguide scenarios they are expected to be relevant also for other scenarios as long as the processes involved are adiabatic so that the Fourier-limited bandwidth of the single photon wave packet involved is small in comparison with the relevant dissipative rates.