T-shaped single-photon router

Lu, Jianghua; Wang, Z. H.; Zhou, Lan

doi:10.1364/oe.23.022955

Cited by 58 publications

(46 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One of the most relevant devices for the operation of a quantum network is a quantum router, whose primary function in the simplest configuration is to send or route an incident photon into one of the two output channels [10]. Recently, there have been several theoretical and experimental proposals for quantum routers based on several different structures, such as CRWs [11][12][13][14][15][16], whispering gallery resonators [17][18][19][20][21], waveguide-emitter systems [22,23], superconducting qubits [24], and quantum electrodynamics systems [25,26]. In the latter context, Zhou and co-workers [11,12] proposed an experimentally accessible single-photon routing scheme comprising two quantum channels connected by a resonant cavity with a single-type three-level atom embedded in it.…”

Section: Introductionmentioning

confidence: 99%

Tunable single-photon quantum router

et al. 2019

View full text Add to dashboard Cite

We propose an efficient single-photon router comprising two resonator waveguide channels coupled by several sequential cavities with embedded three-level atoms. We show that the system can operate as a perfect four-way single-photon switch. We also demonstrate that an incident single photon propagating in one of the waveguides can be routed into one or the other output channels; such routing can be controlled by the external classical electromagnetic field driving the atoms. We argue that, under appropriate conditions, the efficiency of such routing can be close to 100% within a broad operational bandwidth, suggesting various applications in photonics.

show abstract

Section: Introductionmentioning

confidence: 99%

Tunable single-photon quantum router

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Interesting, a large region of P b > 0.5 in Fig. 2 (a) can emerge near the resonance point of the scattering spectra, in contrast to the usual single-emitter routing wherein P b ≤ 0.5 [9][10][11][12]. Physically, this may result from the special construction of the WGR, wherein the cyclic modes can couple and redirect the photons in waveguide-a into waveguide-b in the opposite direction, along with the sidewall of the resonator (see Fig.…”

Section: Quantum Routings Of Single Photons By Engineering the Wgrsmentioning

confidence: 99%

Single-photon routing with whispering-gallery resonators

Huang

Zhang

Wei

2018

J. Phys. B: At. Mol. Opt. Phys.

View full text Add to dashboard Cite

Quantum routing of single photons in a system with two waveguides coupled to two whispering-gallery resonators (WGRs) are investigated theoretically. With a real-space full quantum theory, photonic scattering amplitudes along four ports of the waveguide network are analytically obtained. It is shown that, by adjusting the geometric and physical parameters of the two-WGR configuration, the quantum routing properties of single photons along the present waveguide network can be controlled effectively. For example, the routing capability from input waveguide to another one can significantly exceed 0.5 near the resonance point of scattering spectra, which can be achieved with only one resonator. By properly designing the distance between two WGRs and the waveguide-WGR coupling strengths, the transfer rate between the waveguides can also reach certain sufficiently high values even in the non-resonance regime. Moreover, Fano-like resonances in the scattering spectra are designable. The proposed system may provide a potential application in controlling single-photon quantum routing as a novel router.

show abstract

“…In addition to simulating quantum many-body phenomena [40][41][42], these CCAs also demonstrate promising applications in controlling photon coherent transport by using single controllable two-level or three-level atoms [31,[43][44][45][46][47][48][49]. Photons are transmitted or reflected based upon tuning the photon-atom scattering.…”

Section: Introductionmentioning

confidence: 99%

Controllable single-photon transport between remote coupled-cavity arrays

Qin

Nori

2016

Phys. Rev. A

View full text Add to dashboard Cite

We develop a new approach for controllable single-photon transport between two remote onedimensional coupled-cavity arrays, used as quantum registers, mediated by an additional onedimensional coupled-cavity array, acting as a quantum channel. A single two-level atom located inside one cavity of the intermediate channel is used to control the long-range coherent quantum coupling between two remote registers, thereby functioning as a quantum switch. With a timeindependent perturbative treatment, we find that the leakage of quantum information can in principle be made arbitrarily small. Furthermore, our method can be extended to realize a quantum router in multi-register quantum networks, where single-photons can be either stored in one of the registers or transported to another on demand. These results are confirmed by numerical simulations.

show abstract

T-shaped single-photon router

Cited by 58 publications

References 32 publications

Tunable single-photon quantum router

Tunable single-photon quantum router

Single-photon routing with whispering-gallery resonators

Controllable single-photon transport between remote coupled-cavity arrays

Contact Info

Product

Resources

About