Photon Subtraction by Many-Body Decoherence

Murray, Callum R.; Mirgorodskiy, Ivan; Tresp, Christoph; Braun, Christoph; Paris-Mandoki, Asaf; Gorshkov, Alexey V.; Hofferberth, Sebastian; Pohl, Thomas

doi:10.1103/physrevlett.120.113601

Cited by 19 publications

(19 citation statements)

References 60 publications

(90 reference statements)

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“…states at the output. Previously, such dissipatively induced photon correlations have been studied for strong optical nonlinearities [12,37,38]. Since these dynamics can occur even for weakly coupled emitters β 1, they are readily observable in a larger range of systems, e.g., in experiments on atoms coupled to nanofibers [27,[39][40][41][42].…”

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confidence: 99%

Strongly Correlated Photon Transport in Waveguide Quantum Electrodynamics with Weakly Coupled Emitters

et al. 2018

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We show that strongly correlated photon transport can be observed in waveguides containing optically dense ensembles of emitters. Remarkably, this occurs even for weak coupling efficiencies. Specifically, we compute the photon transport properties through a chirally coupled system of N two-level systems driven by a weak coherent field, where each emitter can also scatter photons out of the waveguide. The photon correlations arise due to an interplay of nonlinearity and coupling to a loss reservoir, which creates a strong effective interaction between transmitted photons. The highly correlated photon states are less susceptible to losses than uncorrelated photons and have a power-law decay with N . This is described using a simple universal asymptotic solution governed by a single scaling parameter which describes photon bunching and power transmission. We show numerically that, for randomly placed emitters, these results hold even in systems without chirality. The effect can be observed in existing tapered fiber setups with trapped atoms.

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confidence: 99%

Strongly Correlated Photon Transport in Waveguide Quantum Electrodynamics with Weakly Coupled Emitters

et al. 2018

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“…(5), in the stationary limit. It is known that if the conditions for a stationary Rydberg polariton in the medium are met, the probe field will get reflected from the medium with a certain probability [21,29]. However in the presence of the Rydberg impurity, we expect a finite probability to be in the intermediate states and thus partial absorption of the probe field.…”

Section: Transmission and Reflection Properties In The Presence Of A ...mentioning

confidence: 99%

“…Interactions between polaritons that are composed of light and matter open the possibility for investigating many-body physics with photons and exotic states of light [1][2][3][4][5]. The combination of electromagnetically induced transparency (EIT) with the exceptional strong interactions between Rydberg atoms has enabled the realization of interacting Rydberg polaritons [6][7][8][9][10][11][12][13][14] and quantum optics applications [15][16][17][18][19][20][21][22][23]. However, photonphoton interactions implemented with this approach are limited by the restricted interaction time between the propagating polaritons [2,24].…”

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confidence: 99%

A stationary Rydberg polariton

Tebben¹,

Hainaut²,

Salzinger³

et al. 2021

Preprint

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We propose a novel scheme for coupling a Rydberg state to a stationary light polariton, based on a dual-V level scheme. We investigate the properties of the resulting stationary Rydberg polariton, and show that its form and its quadratic dispersion relation closely resemble that of the stationary light polariton of the underlying dual-V scheme. We consider the influence of a Rydberg impurity on the system and find strong interaction-induced absorption of the involved probe field. The proposed scheme for a stationary Rydberg polariton might find applications for realizing interacting polaritons with increased interaction time.

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“…In fact, the spin-exchange collision here can be viewed as a heralded single-photon subtractor: a single-photon is subtracted from mode Ê↓ and added to mode Ê↑ , conditioned on the spin-flip of the control atom. In contrast to previous schemes [45,46], the single-photon is coherently extracted from the multi-photon pulse here, so it simultaneously behaves as a single-photon source [47,48].…”

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confidence: 94%

Atom-Photon Spin-Exchange Collisions Mediated by Rydberg Dressing

Yang,

Liu,

You

2020

Preprint

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We show that photons propagating through a Rydberg-dressed atomic ensemble can exchange its spin state with a single atom. Such a spin-exchange collision exhibits both dissipative and coherent features, depending on the interaction strength. For strong interaction, the collision dissipatively drives the system into an entangled dark state of the photon with an atom. In the weak interaction regime, the scattering coherently flips the spin of a single photon in the multi-photon input pulse, demonstrating a generic single-photon subtracting process. An analytic analysis of this process reveals a universal trade-off between efficiency and purity of the extracted photon, which applies to a wide class of single-photon subtractors. We show that such a trade-off can be optimized by adjusting the scattering rate under a novel phase-matching condition.

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Photon Subtraction by Many-Body Decoherence

Cited by 19 publications

References 60 publications

Strongly Correlated Photon Transport in Waveguide Quantum Electrodynamics with Weakly Coupled Emitters

Strongly Correlated Photon Transport in Waveguide Quantum Electrodynamics with Weakly Coupled Emitters

A stationary Rydberg polariton

Atom-Photon Spin-Exchange Collisions Mediated by Rydberg Dressing

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