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Relevant bibliographies by topics / NanOQTech

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Journal articles

Academic literature on the topic 'NanOQTech'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "NanOQTech"

1

Tao, Yu, Yu-Xiang Zhang, Sanchar Sharma, Xiang Zhang, Yaroslav M. Blanter, and Gerrit E. W. Bauer. "Magnon Accumulation in Chirally Coupled Magnets." March 11, 2020. https://doi.org/10.1103/PhysRevLett.124.107202.

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We report strong chiral coupling between magnons and photons in microwave waveguides that contain chains of small magnets on special lines. Large magnon accumulations at one edge of the chain emerge when exciting the magnets by a phased antenna array. This mechanism holds the promise of new functionalities in nonlinear and quantum magnonics.

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2

Kunkel, Nathalie, and Philippe Goldner. "Recent Advances in Rare Earth Doped Inorganic Crystalline Materials for Quantum Information Processing." January 30, 2018. https://doi.org/10.1002/zaac.201700425.

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Since quantum information technologies are expected to offer communication security and high computational capacities, research in the field is currently attracting a lot of attention. Among the materials studied so far, rare earth doped inorganic insulators are one of the most promising. With the different available trivalent rare earth ions, the visible and the IR range including the telecom wavelength at 1.5 μm can be covered. Transitions are usually narrow, and at low temperatures, long optical and spin coherence time can often be observed. Investigations using bulk single crystals have

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3

Harada, Nao, Alban Ferrier, Diana Serrano, et al. "Chemically vapor deposited Eu3+:Y2O3 thin films as a material platform for quantum technologies." August 4, 2020. https://doi.org/10.1063/5.0010833.

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Rare earth ions hosted in solids are good candidates for quantum technologies due to their chemical stability and optical and spin transitions exhibiting long coherence lifetimes. While bulk oxide crystals are usually the preferred host material, the development of a scalable silicon-compatible thin film platform would be desirable. In this paper, we report on the growth of Y<sub>2(1−x)</sub>Eu<sub>2x</sub>O<sub>3</sub> thin films on silicon in the full range of Eu<sup>3+</sup> concentration by direct liquid injection chemical vapor deposition (CVD). Our sub-micrometer polycrys

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4

Zhang, S., N. Lučič, N. Galland, et al. "Precision measurements of electric-field-induced frequency displacements of an ultranarrow optical transition in ions in a solid." December 1, 2020. https://doi.org/10.1063/5.0025356.

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We report a series of measurements of the effect of an electric field on the frequency of the ultranarrow linewidth <sup>7</sup>F<sub>0</sub>-<sup>5</sup>D<sub>0</sub> optical transition of Eu<sup>3+</sup> ions in an Y<sub>2</sub>SiO<sub>5</sub> matrix at cryogenic temperatures. We provide linear Stark coefficients along two dielectric axes and for the two different substitution sites of the Eu<sup>3+</sup> ions, with an unprecedented accuracy and an upper limit for the quadratic Stark shift. The measurements, which indicate that the electric field sensitivity is a fac

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5

Zhang, Yu-Xiang, and Klaus Mølmer. "Theory of Subradiant States of a One-Dimensional Two-Level Atom Chain." January 7, 2019. https://doi.org/10.1103/PhysRevLett.122.203605.

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Recently, the subradiant states of one-dimensional two-level atom chains coupled to light modes were found to have decay rates obeying a universal scaling, and an unexpected fermionic character of the multiply-excited subradiant states was discovered. In this Letter, we theoretically obtain the singly-excited subradiant states, and by eliminating the superradiant modes, we demonstrate a relation between the multiply-excited subradiant states and the Tonks-Girardeau limit of the Lieb- Liniger model which explains the fermionic behavior. In addition, we identify a new family of states with corre

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6

Yan, Ying, Yichao Li, Adam Kinos, et al. "Inverse engineering of shortcut pulses for high fidelity initialization on qubits closely spaced in frequency." March 18, 2019. https://doi.org/10.1364/OE.27.008267.

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High-fidelity qubit initialization is of significance for efficient error correction in fault tolerant quantum algorithms. Combining two best worlds, speed and robustness, to achieve high-fidelity state preparation and manipulation is challenging in quantum systems, where qubits are closely spaced in frequency. Motivated by the concept of shortcut to adiabaticity, we theoretically propose the shortcut pulses via inverse engineering and further optimize the pulses with respect to systematic errors in frequency detuning and Rabi frequency. Such protocol, relevant to frequency selectivity, is app

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7

Debnath, Kamanasish, Yuan Zhang, and Klaus Mølmer. "Lasing in the superradiant crossover regime." December 26, 2018. https://doi.org/10.1103/PhysRevA.98.063837.

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A new class of laser, which harnesses coherence in both light and atoms, is possible with ultracold alkaline-earth-metal atoms trapped in an optical lattice inside an optical cavity. Different lasing regimes, including superradiance, superradiant, and conventional lasing, are distinguished by the relative coherence stored in the atoms and in the cavity mode. We analyze the physics in two different experimentally achievable regions of the superradiant lasing regime. Our calculations confirm the narrow linewidth of superradiant lasing for the doubly forbidden clock transition <sup>3</sup>P<

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8

Zhong, Tian, and Philippe Goldner. "Emerging rare-earth doped material platforms for quantum nanophotonics." September 27, 2019. https://doi.org/10.1515/nanoph-2019-0185.

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Rare-earth dopants are arguably one of the most studied optical centers in solids, with applications spanning from laser optoelectronics, biosensing, lighting to displays. Nevertheless, harnessing rare-earth dopants’ extraordinary coherence properties for quantum information technologies is a relatively new endeavor, and has been rapidly advancing in recent years. Leveraging the state-of-the-art photonic technologies, on-chip rare-earth quantum devices functioning as quantum memories, single photon sources and transducers have emerged, often with potential performances unrivaled by other

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9

Galland, N., N. Lučić, S. Zhang, et al. "Double-heterodyne probing for ultra-stable laser based on spectral hole burning in a rare-earth doped crystal." April 8, 2020. https://doi.org/10.1364/OL.389833.

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We present an experimental technique for realizing a specific absorption spectral pattern in a rare-earth-doped crystal at cryogenic temperatures. This pattern is subsequently probed on two spectral channels simultaneously, thereby producing an error signal allowing frequency locking of a laser on the said spectral pattern. Appropriate combination of the two channels leads to a substantial reduction of the detection noise, paving the way to realizing an ultra-stable laser for which the detection noise can be made arbitrarily low when using multiple channels. We use such technique to realize a

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10

Galland, N., N. Lucic, B. Fang, et al. "Mechanical tunability of an ultra-narrow spectral feature with uniaxial stress." May 11, 2020. https://doi.org/10.1103/PhysRevApplied.13.044022.

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Rare-earth doped crystals have numerous applications ranging from frequency metrology to quan- tum information processing. To fully benefit from their exceptional coherence properties, the effect of mechanical strain on the energy levels of the dopants - whether it is a resource or perturbation - needs to be considered. We demonstrate that by applying uniaxial stress to a rare-earth doped crystal containing a spectral hole, we can shift the hole by a controlled amount that is larger than the width of the hole. We deduce the sensitivity of Eu3+ ions in an Y2SiO5 matrix as a function o

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