Nonreciprocal single-photon frequency converter via multiple semi-infinite coupled-resonator waveguides

Xu, Xun-Wei; Chen, Ai-Xi; Li, Yong; Liu, Yuxi

doi:10.1103/physreva.96.053853

Cited by 26 publications

(11 citation statements)

References 84 publications

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“…Finally, we have also demonstrated the opposite interference patterns of entanglement and steering between other pair of modes in the loop, indicating the monogamy constraints for distributing quantum correlations among multipartite. It is worth noticing that new quantum interference effects arising from a closed coupling loop have been recently applied to study optomechanical interferences and phonon correlations [47,48], the phase effects on phonon blockade effects [47,49], the transduction bandwidth of a rf-to-optical transducer [50], and the optical nonreciprocal behavior [51][52][53][54] which has been experimentally implemented [55][56][57].…”

Section: Introductionmentioning

confidence: 99%

Manipulation and enhancement of asymmetric steering via interference effects induced by closed-loop coupling

et al. 2019

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We present a phase control method for a general three-mode system with closed-loop in coupling that drives the system into an entangled steady state and produces directional steering between two completely symmetric modes via quantum interference effects. In the scheme, two modes are coupled with each other both by a direct binary interaction and by an indirect interaction through a third intermediate damping mode, creating interference effects determined by the relative phase between the two physical interaction paths. By calculating the populations and correlations of the two modes, we show that depending on the phase, two modes can be prepared into an entangled steady state with asymmetric and directional steering even if they possess completely symmetric decoherence properties. Meanwhile, entanglement and steering can be significantly enhanced due to constructive interference, and thus more robust to thermal noises. This provides an active method to manipulate the asymmetry of steering instead of adding asymmetric losses or noises on subsystems at the cost of reducing steerability. Moreover, we show that the interference effects can also enhance and control the correlations between other pair of modes in the loop with opposite phase dependent behavior, indicating monogamy constraints for distributing correlations among multipartite. The present model could be applied in cavity optomechanical systems or in antiferromagnets where all components can mutually interact.

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Section: Introductionmentioning

confidence: 99%

Manipulation and enhancement of asymmetric steering via interference effects induced by closed-loop coupling

et al. 2019

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“…The efficiency for nonreciprocity transport can be described by the the scattering flow [53][54][55][56] I l ′ l for a single photon from CRW-l to CRW-l ′ (l = a, b). The detailed calculations of the scattering flow I l ′ l can be found in the supplementary material [38].…”

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confidence: 99%

Nonreciprocal transition between two nondegenerate energy levels

Xu,

Zhao,

Wang

et al. 2019

Preprint

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Stimulated emission and absorption are two fundamental processes of light-matter interaction, and the coefficients of the two processes should be equal in general. However, we will describe a generic method to realize significant difference between the stimulated emission and absorption coefficients of two nondegenerate energy levels, which we refer to as nonreciprocal transition. As a simple implementation, a cyclic three-level atom system, comprising two nondegenerate energy levels and one auxiliary energy level, is employed to show nonreciprocal transition via a combination of synthetic magnetism and reservoir engineering. Moreover, a single-photon nonreciprocal transporter is proposed using two one dimensional semi-infinite coupled-resonator waveguides connected by an atom with nonreciprocal transition effect. Our work opens up a route to design atom-mediated nonreciprocal devices in a wide range of physical systems.

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“…(12) Introducing the Fourier transformation on Eq. ( 11) [27,30], and using the input-output formalism [24]. The output field vector in the frequency domain is…”

Section: Nonlocal Circulatormentioning

confidence: 99%

Nonlocal nonreciprocal optomechanical circulator

Zheng,

Peng,

Cheng

et al. 2021

Preprint

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A nonlocal circulator protocol is proposed in hybrid optomechanical system. By analogy with quantum communication, using the input-output relationship, we establish the quantum channel between two optical modes with long-range. The three body nonlocal interaction between the cavity and the two oscillators is obtained by eliminating the optomechanical cavity mode and verifying the Bell-CHSH inequality of continuous variables. By introducing the phase accumulation between cyclic interactions, the unidirectional transmission of quantum state between optical mode and two mechanical modes are achieved. The results show that nonreciprocal transmissions are achieved as long as the accumulated phase reaches a certain value. In addition, the effective interaction parameters in our system are amplified, which reduces the difficulty of the implementation of our protocol. Our research can provide potential applications for nonlocal manipulation and transmission control of quantum platforms.

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Nonreciprocal single-photon frequency converter via multiple semi-infinite coupled-resonator waveguides

Cited by 26 publications

References 84 publications

Manipulation and enhancement of asymmetric steering via interference effects induced by closed-loop coupling

Manipulation and enhancement of asymmetric steering via interference effects induced by closed-loop coupling

Nonreciprocal transition between two nondegenerate energy levels

Nonlocal nonreciprocal optomechanical circulator

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