Reversible nonmagnetic single-photon isolation using unbalanced quantum coupling

Xia, Keyu; Lü, Guowei; Lin, Guang; Cheng, Yuqing; Niu, Yueping; Gong, Shangqing; Twamley, J.

doi:10.1103/physreva.90.043802

Cited by 151 publications

(99 citation statements)

References 45 publications

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“…In conventional nonreciprocal optical devices, this is induced by a magnetic field in conjunction with magneto-optical materials, the time modulation of the optical properties of the system, or an optical nonlinearity. Non-reciprocity that relies on chiral coupling to break Lorentz reciprocity, however, can be based solely on the atomic spin, which is in general associated with a polarization-dependent coupling strength to realize optical isolators and circulators [49,50]. Optical isolators and circulators utilizing chiral coupling to achieve non-reciprocal absorption or phase shifts have been demonstrated with either a small ensemble of atoms coupled to an optical nanofiber, cf.…”

Section: Elementary Devices Based On Chiral-light Matter Interactionmentioning

confidence: 99%

“…In both cases, the isolators were operated in a dissipative regime leading to decoherence, and they essentially behaved as classical devices. However, nonreciprocal devices based on chiral coupling have also been proposed in the quantum regime, such as optical circulators for single photons operated by a single quantum emitter [29,50], cf. Fig.…”

Section: Elementary Devices Based On Chiral-light Matter Interactionmentioning

confidence: 99%

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Chiral quantum optics

Lodahl¹,

Mahmoodian²,

Stobbe³

et al. 2017

Nature

1,398

1,178

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At the most fundamental level, the interaction between light and matter is manifested by the emission and absorption of single photons by single quantum emitters. Controlling light-matter interaction is the basis for diverse applications ranging from light technology to quantum-information processing. Many of these applications are nowadays based on photonic nanostructures strongly benefitting from their scalability and integrability. The confinement of light in such nanostructures imposes an inherent link between the local polarization and propagation direction of light. This leads to chiral light-matter interaction, i.e., the emission and absorption of photons depend on the propagation direction and local polarization of light as well as the polarization of the emitter transition. The burgeoning research field of chiral quantum optics offers fundamentally new functionalities and applications both for single emitters and ensembles thereof. For instance, a chiral light-matter interface enables the realization of integrated non-reciprocal single-photon devices and deterministic spin-photon interfaces. Moreover, engineering directional photonic reservoirs opens new avenues for constructing complex quantum circuits and networks, which may be applied to simulate a new class of quantum many-body systems.

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Section: Elementary Devices Based On Chiral-light Matter Interactionmentioning

confidence: 99%

Section: Elementary Devices Based On Chiral-light Matter Interactionmentioning

confidence: 99%

Chiral quantum optics

Lodahl¹,

Mahmoodian²,

Stobbe³

et al. 2017

Nature

1,398

1,178

View full text Add to dashboard Cite

show abstract

“…A cavity strongly coupled to a quantum emitter is a well-known photon-emitter interface. It can accomplish a variety of elementary quantum information processing (QIP) tasks [10][11][12], ranging from single-photon sources [13][14][15][16] to quantum gates [17][18][19][20][21][22][23], quantum memories [24], and quantum routers [25][26][27][28][29][30][31][32]. However, constructing a multinode quantum network requires an array of strongly coupled cavities in a cascaded arrangement.…”

Section: Introductionmentioning

confidence: 99%

Quantum memory and gates using a Λ -type quantum emitter coupled to a chiral waveguide

Miranowicz

et al. 2018

Phys. Rev. A

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By coupling a Λ-type quantum emitter to a chiral waveguide, in which the polarization of a photon is locked to its propagation direction, we propose a controllable photon-emitter interface for quantum networks. We show that this chiral system enables the SWAP gate and a hybrid-entangling gate between the emitter and a flying single photon. It also allows deterministic storage and retrieval of single-photon states with high fidelities and efficiencies. In short, this chirally coupled emitterphoton interface can be a critical building block toward a large-scale quantum network. arXiv:1803.05626v2 [quant-ph]

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“…Following Fan's treatment, the evolution of the photonic wavefunctions is governed by the partial differential equations [27,28] ∂∅ ps ∂t…”

Section: Qnd Measurement Via Rabi-type Photon-photon Interactionmentioning

confidence: 99%

Quantum Non-Demolition Measurement of Photons

Xia¹

2018

Photon Counting - Fundamentals and Applications

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According to Heisenberg's uncertainty principle, measurement of a quantum observable introduces noise to this observable and thus limits the available precision of measurement. Quantum non-demolition measurements are designed to circumvent this limitation and have been demonstrated in detecting the photon flux of classical light beam. Quantum non-demolition measurement of a single photon is the ultimate goal because it is of great interest in fundamental physics and also a powerful tool for applications in quantum information processing. This chapter presents a brief introduction of the history and a review of the progress in quantum non-demolition measurement of light. In particular, a detailed description is presented for two works toward cavity-free schemes of quantum non-demolition measurement of single photons. Afterward, an outlook of the future in this direction is given.

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Reversible nonmagnetic single-photon isolation using unbalanced quantum coupling

Cited by 151 publications

References 45 publications

Chiral quantum optics

Chiral quantum optics

Quantum memory and gates using a Λ -type quantum emitter coupled to a chiral waveguide

Quantum Non-Demolition Measurement of Photons

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