Tunable single-photon quantum router

Ahumada, M.; Orellana, P. A.; Domı́nguez-Adame, F.; Малышев, А. В.

doi:10.1103/physreva.99.033827

Cited by 45 publications

(25 citation statements)

References 30 publications

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“…To demonstrate the feasibility of such routing, we consider the dynamics of the wave packet (4) centered at k 0 = arccos (−E 0 /2) ≈ 1.33 and having the width ∆E = 0.02 in Second, we address the system in the wave packet "1/4-splitting" regime. As was demonstrated recently [30], the stationary transmission and reflection spectra of the considered system have wide flat sub-bands in the vicinity of E = ±Ω. Within these sub-bands, the probabilities of scattering into the four possible channels (A L , A R , B L , and B R ) are all approximately equal to 1/4 (see panel (g) of Fig.…”

supporting

confidence: 65%

“…Such a system with 12 atoms forming the junction was studied recently in Ref. [30], where it is demonstrated that it has promising scattering properties in the stationary regime for certain sets of parameters. In this paper, we address the dynamics of wave packets for the most relevant parameter sets.…”

mentioning

confidence: 99%

“…To this end, we start with inspecting the stationary spectra of the transmission into the two right output channels, T AR and T BR , for two different values of the control field: Ω = 0 and Ω = 0.85 (see Ref. [30] for details of their calculation); the spectra are shown in panels (a) and (b) of Fig. 1, respectively.…”

mentioning

confidence: 99%

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Manipulating photonic signals by a multipurpose quantum junction

Ahumada¹,

Orellana²,

Malyshev³

2019

Preprint

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We show that photonic wave packets can be controlled and manipulated in various ways by a multi-functional quantum junction comprising a set of three-level atomic nodes which couple two waveguides. We consider nodes with the Λ-scheme of the allowed optical transitions, one of which is driven by an external classical electromagnetic control field. Addressing the dynamics of wave packets in such a system, we demonstrate that an optical pulse can be routed into one of the selected output channels, split into several parts, delayed by a desired time or stored partially in the junction. These modes of operation can be selected and controlled by the external classical field. We argue, therefore, that our proposed design is a promising prototype of a multipurpose quantum junction.

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supporting

confidence: 65%

mentioning

confidence: 99%

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Manipulating photonic signals by a multipurpose quantum junction

Ahumada¹,

Orellana²,

Malyshev³

2019

Preprint

Self Cite

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“…[43][44][45][46][47][48][49][50][51] Optical router is a key element for controlling the path of signal flow in quantum and classical network. Recently, quantum router has been proposed in various systems, that is, cavity atom, [52][53][54][55][56][57][58][59][60] coupled resonator [61,62] and optomechanical systems. [63][64][65] Previous schemes demonstrated with optomechanical systems via a red-detuned control field have some restrictions, such as there is only one output terminal, or the probability of successful routing decreases with increasing the number of routing ports.…”

Section: Introductionmentioning

confidence: 99%

Multimode Interference Induced Optical Routing in an Optical Microcavity

et al. 2021

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The photonic router is a key device in optical communication and quantum networks. Here, the results of a study of multi‐channel optical routing using optomechanical multimode interference in an optical microcavity are reported. The optomechanical system used here exhibits multi‐optical modes and a mechanical mode. Optomechanical induced transparency and absorption appear in the system due to the interference between different paths. It is shown that the system can be served as a three‐port routing in the red‐detuned region to rout photons from the input port to an arbitrarily selected output port with high routing efficiency by controlling the parameters corresponding to different interference paths.

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“…There has also been a series of routing proposals reported which are based on QEs embedded in coupled resonator waveguides (Refs. [6][7][8][9][10] to name a few). In other proposals circuit quantum electrodynamics QED systems have been used to attain routing through EIT (see, for example, Ref.…”

Section: Introductionmentioning

confidence: 99%

Collective photon routing improvement in a dissipative quantum emitter chain strongly coupled to a chiral waveguide QED ladder

Poudyal

Mirza

2020

Phys. Rev. Research

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We examine the routing scheme of single photons in a one-dimensional periodic chain of two-level quantum emitters (QEs) strongly coupled to two waveguides in a ladder configuration. It is known that for a single-emitter chiral waveguide ladder setting photons can be redirected from one waveguide to another with a 100% probability (deterministically) provided the resonance condition is met and spontaneous emission is completely ignored. However, when the spontaneous emission is included the routing scheme becomes considerably imperfect. In this paper, we present a solution to this issue by considering a chain of QEs where, in addition to the waveguide mediated interaction among emitters, a direct and infinitely long-ranged dipole-dipole interaction (DDI) is taken into account. We show that the collective effects arising from the strong DDI protect the routing scheme from spontaneous emission loss. In particular, we demonstrate that the router operation can be improved from 58 to ≈95% in a typical dissipative chiral light-matter interface consisting of nanowire modes strongly interacting with a linear chain of 30 quantum dots. With the recent experimental progress in chiral quantum optics, trapped QEs evanescently coupled to tapered nanofibers can serve as a platform for the experimental realization of this paper.

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Tunable single-photon quantum router

Cited by 45 publications

References 30 publications

Manipulating photonic signals by a multipurpose quantum junction

Manipulating photonic signals by a multipurpose quantum junction

Multimode Interference Induced Optical Routing in an Optical Microcavity

Collective photon routing improvement in a dissipative quantum emitter chain strongly coupled to a chiral waveguide QED ladder

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