Optomechanical quantum teleportation

Fiaschi, Niccolò; Hensen, B. J.; Wallucks, Andreas; Benevides, Rodrigo; Li, Jie; Alegre, Thiago P. Mayer; Gröblacher, Simon

doi:10.1038/s41566-021-00866-z

Cited by 85 publications

(47 citation statements)

References 33 publications

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“…3 (b,c) indicate that state-of-the-art QWs with a broadening below 0.5 meV [68], allow coherent control with C 0 ∼ 1 for micro-structures complying with current fabrication technologies. Quantum cavity optomechanics experiments would thus become feasible using few intracavity photons [13,69,70].…”

Section: (A)mentioning

confidence: 99%

Enhanced Cavity Optomechanics with Quantum-well Exciton Polaritons

Zambon,

Denis,

De Oliveira

et al. 2022

Preprint

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Semiconductor microresonators embedding quantum wells can host tightly confined and mutually interacting excitonic, optical and mechanical modes at once. We theoretically investigate the case where the system operates in the strong exciton-photon coupling regime, while the optical and excitonic resonances are parametrically modulated by the interaction with a mechanical mode. Owing to the large exciton-phonon coupling at play in semiconductors, we predict an enhancement of polariton-phonon interactions by two orders of magnitude with respect to mere optomechanical coupling: a near-unity single-polariton cooperativity is within reach for current semiconductor resonator platforms. We further analyze how polariton nonlinearities affect dynamical back-action, modifying the capability to cool or amplify the mechanical motion.

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Section: (A)mentioning

confidence: 99%

Enhanced Cavity Optomechanics with Quantum-well Exciton Polaritons

Zambon,

Denis,

De Oliveira

et al. 2022

Preprint

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“…Teleportation of photonic qubits over long distances of up to 1,400 kilometers through an uplink channel has been reported [5]. A demonstration of teleportation from photons to the vibrations of nanomechanical resonators has been proposed [6,7]. Superdense teleportation has been implemented by photon pairs to communicate a specific class of single-photon ququarts with average fidelity of 87.0% [8].…”

Section: Introductionmentioning

confidence: 99%

Quantum cost of dense coding and teleportation

Qiu,

Chen

2022

Preprint

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The quantum cost is a key ingredient to evaluate the quality of quantum protocols from a practical viewpoint. We show that the quantum cost of d-dimensional dense coding protocol is equal to d + 3 when transmitting the classical message (0, 0), and that is equal to d + 4 when transmitting other classical message. It appears linear growth with the dimension and thus makes sense for implementation. In contrast, the quantum cost of high-dimensional teleportation protocols is equal to 13, which is the maximum value of the cost for the two-dimensional case. As an application, we establish the relation between the quantum cost and fidelity of dense coding protocols in terms of four typical noise scenario.

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“…Moreover, in order to be able to benefit from the non-linear effects, we consider the photon-counting detection scheme -see e.g. [52][53][54] for recent implementationsfor which the information about the parameter is then contained within the (non-classical) photonclick patterns being recorded [46]. In particular, we resort to continuous measurement theory [55], in order to firstly demonstrate that the resulting conditional (non-linear) dynamics of the optomechanical sensor exhibits enhanced entanglement between optical and mechanical degrees of freedom, despite both photonic and phononic dissipation.…”

Section: Introductionmentioning

confidence: 99%

Exploiting non-linear effects in optomechanical sensors with continuous photon-counting

Clark¹,

Markowicz²,

Kołodyński³

2022

Preprint

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Optomechanical systems are rapidly becoming one of the most promising platforms for observing quantum behaviour, especially at the macroscopic level. Moreover, thanks to their state-of-the-art methods of fabrication, they may now enter regimes of non-linear interactions between their constituent mechanical and optical degrees of freedom. In this work, we show how this novel opportunity may serve to construct a new generation of optomechanical sensors. We consider the canonical optomechanical setup with the detection scheme being based on time-resolved counting of photons leaking from the cavity. By performing simulations and resorting to Bayesian inference, we demonstrate that the non-classical correlations of the detected photons may crucially enhance the sensor performance in real time. We believe that our work may stimulate a new direction in the design of such devices.

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Optomechanical quantum teleportation

Cited by 85 publications

References 33 publications

Enhanced Cavity Optomechanics with Quantum-well Exciton Polaritons

Enhanced Cavity Optomechanics with Quantum-well Exciton Polaritons

Quantum cost of dense coding and teleportation

Exploiting non-linear effects in optomechanical sensors with continuous photon-counting

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