Applications of electromagnetically induced transparency to quantum information processing

Beausoleil, Raymond G.; Munro, William J.; Rodrigues, D. A.; Spiller, Timothy P.

doi:10.1080/09500340408231802

Cited by 60 publications

(36 citation statements)

References 8 publications

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“…8,9 In particular, symmetry-broken systems of MNPs have attracted significant attention due to reported Fano resonances, 10,11 nanofocusing of electromagnetic fields, 12,13 and chiro-optical activity. 14−18 Whereas Fano resonances are of interest for sensing and optical modulators, nanofocusing creates strong local electromagnetic fields, resulting in large amplification of surface-enhanced spectroscopic signals.…”

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confidence: 99%

Nonlinear Chiro-Optical Amplification by Plasmonic Nanolens Arrays Formed via Directed Assembly of Gold Nanoparticles

Biswas

Jarrett

et al. 2015

Nano Lett.

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Metal nanoparticle assemblies are promising materials for nanophotonic applications due to novel linear and nonlinear optical properties arising from their plasmon modes. However, scalable fabrication approaches that provide both precision nano- and macroarchitectures, and performance commensurate with design and model predictions, have been limiting. Herein, we demonstrate controlled and efficient nanofocusing of the fundamental and second harmonic frequencies of incident linearly and circularly polarized light using reduced symmetry gold nanoparticle dimers formed by surface-directed assembly of colloidal nanoparticles. Large ordered arrays (>100) of these C∞v heterodimers (ratio of radii R1/R2 = 150 nm/50 nm = 3; gap distance l = 1 ± 0.5 nm) exhibit second harmonic generation and structure-dependent chiro-optic activity with the circular dichroism ratio of individual heterodimers varying less than 20% across the array, demonstrating precision and uniformity at a large scale. These nonlinear optical properties were mediated by interparticle plasmon coupling. Additionally, the versatility of the fabrication is demonstrated on a variety of substrates including flexible polymers. Numerical simulations guide architecture design as well as validating the experimental results, thus confirming the ability to optimize second harmonic yield and induce chiro-optical responses for compact sensors, optical modulators, and tunable light sources by rational design and fabrication of the nanostructures.

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mentioning

confidence: 99%

Nonlinear Chiro-Optical Amplification by Plasmonic Nanolens Arrays Formed via Directed Assembly of Gold Nanoparticles

Biswas

Jarrett

et al. 2015

Nano Lett.

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“…There are several proposals that use such systems to provide an effective cross-Kerr nonlinearity for single photons [59,65,66]. Our model may or may not be applicable to such scenarios.…”

Section: Further Discussionmentioning

confidence: 99%

Long-distance quantum communication with neutral atoms

Razavi

Shapiro

2005

SPIE Proceedings

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In this thesis, we develop quantitative performance analyses for a variety of quantum communication/computation systems that have the common feature of employing neutral atoms for storage/processing and photons for qubit transmission. For most of these systems, there is a lack of a precise performance analysis to enable a comparison between different scenarios from a top-level system standpoint. One main goal of this thesis is to fill that gap, thus providing quantum system designers with realistic estimates of system performance that can guide and inform the design process.For many applications in quantum communication and distributed quantum processing, we need to share, in advance, an entangled state between two parties. Thus, entanglement distribution is at the core of long-distance quantum communication systems. It not only includes generation and transmission of entangled states, but it also requires storing them for further processing purposes. Whereas the photons are the prime candidate for the former task, they are not appropriate for long-time storage and processing. Metastable levels in some alkali atoms, e.g., rubidium, are attractive venues for quantum storage. In this thesis, we study several basic quantum memory modules-all based on single trapped atoms in high-finesse optical cavities-and analytically evaluate how efficiently they can be loaded with (entangled) quantum states. We propose a non-adiabatic mechanism for driving offresonant Raman transitions that can be used in loading trapped-atom quantum memories. Our method is more flexible than its adiabatic counterpart in that it allows use of larger cavities and a larger class of driving sources.We also describe two proposed implementations for long-distance quantum communication-one that uses trapped atoms as quantum memories and another that employs atomic ensembles for quantum storage. We provide, for the first time, a detailed quantitative performance analysis of the latter system, which enables us to compare these two systems in terms of the fidelity and the throughput that they achieve for entanglement distribution, repeater operation, and quantum teleportation.Finally, we study quantum computing systems that use the cross-Kerr nonlinearity between single-photon qubits and a coherent mode of light. The coherent beam serves a mediating role in coupling two weak single-photon beams. We analytically study this structure using a continuous-time formalism for the cross-Kerr effect in optical fibers. Our results establish stringent conditions that must be fulfilled for the system's proper operation.

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“…In previous work, 14,15 we considered a model of the nonlinear electric dipole interaction between three quantum electromagnetic radiation fields with angular frequencies ω a , ω b , and ω c and a corresponding four-state atomic system in the N configuration, as shown in Fig. 1(a).…”

Section: Applications Of Eit To Quantum Information Processingmentioning

confidence: 99%

Toward quantum information processing using EIT in diamond

et al. 2006

Self Cite

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We describe how a quantum non-demolition device based on electromagnetically-induced transparency in solidstate atom-like systems could be realized. Such a resource, requiring only weak optical nonlinearities, could potentially enable photonic quantum information processing (QIP) that is much more efficient than QIP based on linear optics alone. As an example, we show how a parity gate could be constructed. A particularly interesting physical system for constructing devices is the nitrogen-vacancy defect in diamond, but the excited-state structure for this system is unclear in the existing literature. We include some of our latest spectroscopic results that indicate that the optical transitions are generally not spin-preserving, even at zero magnetic field, which allows the realization of a Λ-type system.

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Applications of electromagnetically induced transparency to quantum information processing

Cited by 60 publications

References 8 publications

Nonlinear Chiro-Optical Amplification by Plasmonic Nanolens Arrays Formed via Directed Assembly of Gold Nanoparticles

Nonlinear Chiro-Optical Amplification by Plasmonic Nanolens Arrays Formed via Directed Assembly of Gold Nanoparticles

Long-distance quantum communication with neutral atoms

Toward quantum information processing using EIT in diamond

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