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Coherent Interactions In Rare Earth Ion Doped Crystals For Applications In Quantum Information Science
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Book Synopsis Coherent Interactions in Rare-earth-ion-doped Crystals for Applications in Quantum Information Science by : Mattias Nilsson
Download or read book Coherent Interactions in Rare-earth-ion-doped Crystals for Applications in Quantum Information Science written by Mattias Nilsson and published by . This book was released on 2004 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hybrid quantum system based on rare earth doped crystals by : Probst, Sebastian
Download or read book Hybrid quantum system based on rare earth doped crystals written by Probst, Sebastian and published by KIT Scientific Publishing. This book was released on 2016-09-05 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid quantum circuits interfacing rare earth spin ensembles with microwave resonators are a promising approach for application as coherent quantum memory and frequency converter. In this thesis, hybrid circuits based on Er and Nd ions doped into Y?SiO? and YAlO? crystals are investigated by optical and on-chip microwave spectroscopy. Coherent strong coupling between the microwave resonator and spin ensemble as well as a multimode memory for weak coherent microwave pulses are demonstrated.
Book Synopsis Nuclear Spin Interactions and Coherent Control in Rare-earth-ion-doped Crystals for Quantum Computing by : Hafsa Syed
Download or read book Nuclear Spin Interactions and Coherent Control in Rare-earth-ion-doped Crystals for Quantum Computing written by Hafsa Syed and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quantum Information Processing in Rare-earth-ion Doped Crystals by : Janus Halleløv Wesenberg
Download or read book Quantum Information Processing in Rare-earth-ion Doped Crystals written by Janus Halleløv Wesenberg and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Light-Matter Interaction and Quantum Computing in Rare-Earth-Ion-Doped Crystals by : Adam Kinos
Download or read book Light-Matter Interaction and Quantum Computing in Rare-Earth-Ion-Doped Crystals written by Adam Kinos and published by . This book was released on 2018 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hybrid Quantum System Based on Rare Earth Doped Crystals by : Sebastian Probst
Download or read book Hybrid Quantum System Based on Rare Earth Doped Crystals written by Sebastian Probst and published by . This book was released on 2020-10-09 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid quantum circuits interfacing rare earth spin ensembles with microwave resonators are a promising approach for application as coherent quantum memory and frequency converter. In this thesis, hybrid circuits based on Er and Nd ions doped into Y?SiO? and YAlO? crystals are investigated by optical and on-chip microwave spectroscopy. Coherent strong coupling between the microwave resonator and spin ensemble as well as a multimode memory for weak coherent microwave pulses are demonstrated. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.
Book Synopsis Evaluation of a Stoichiometric Rare Earth Crystal for Quantum Computing by : Rose Ahlefeldt
Download or read book Evaluation of a Stoichiometric Rare Earth Crystal for Quantum Computing written by Rose Ahlefeldt and published by . This book was released on 2013 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents a spectroscopic study of the 7F0-5D0 transition of Eu3+ in EuCl3.6H2O, which is used to evaluate the potential performance of a quantum computing system implemented in EuCl3.6H2O and, more generally, in stoichiometric rare earth crystals. EuCl3.6H2O has one of the narrowest optical inhomogeneous linewidths of any solid but this linewidth is shown to be still much larger than that required for practical quantum computing in a rare earth crystal. To assess the possibility of reducing the linwidth, the contributions of isotopic impurities to both the optical linewidth and line structure were investigated, and ligand isotopes were identified as a major source of both inhomogeneous broadening and structure on the optical transition, suggesting that the linewidth could be substantially reduced by isotopically purifying EuCl3.6H2O. The effect of ligand isotopes on the optical lifetime and coherence time was also investigated. It was found that fully deuterating the crystal to EuCl3.6D2O substantially improves both the lifetime and coherence time. The satellite lines formed in the optical spectrum of a rare earth crystal when it is doped with another rare earth are proposed as qubits. A crucial step in characterising EuCl3.6H2O for quantum computing is associating these satellite lines in EuCl3.6H2O with crystallographic sites. A new method for associating sites with lines, which works for low symmetry crystals such as EuCl3.6H2O, is presented. This method involves modelling the splitting of the ground state hyperfine levels caused by the magnetic dipole-dipole interaction between a Kramers dopant and the Eu3+ ion. Using this method, most of the outer satellite lines in rare earth doped EuCl3.6H2O were assigned to crystallographic sites. It has been proposed that the electronic interactions between these satellite lines be used to enact two-qubit gates in a rare earth quantum computer. These interactions were measured between a number of different satellite lines using a new two-laser spectral holeburning technique. Interactions of up to 46.081 +- 0.005 MHz were observed, and this was the first time that electronic interactions between weakly coupled rare earth ions had been measured. The two most common interactions identified between rare earth ions in solids are electric dipole-dipole and exchange, but the observed interactions are stronger than expected from a electric dipole-dipole model and occur at too large a distance to be superexchange. It is shown that the development of a moderate-sized quantum processor, one with more than 10 qubits, in a stoichiometric rare earth crystal is feasible provided that the optical inhomogeneous linewidth is reduced below 1 MHz. Demonstrations of three or four qubit devices should be possible using existing materials.
Book Synopsis Quantum Information Processing and Communication in Europe by : Antonella Karlson
Download or read book Quantum Information Processing and Communication in Europe written by Antonella Karlson and published by . This book was released on 2005 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: "FET is the IST Programme nursery of novel and emerging scientific ideas. Its mission is to promote research that is of a long-term nature or involves particularly high risks, compensated by the potential of a significant societal or industrial impact. " -- ISTweb, Directorate F, Future and Emerging Technologies home page.
Book Synopsis Spin Dynamics in Rare-earth-ion-doped Crystals for Optical Quantum Memories by : Emmanuel Zambrini Cruzeiro
Download or read book Spin Dynamics in Rare-earth-ion-doped Crystals for Optical Quantum Memories written by Emmanuel Zambrini Cruzeiro and published by . This book was released on 2017 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quantum Memory Development and New Slow Light Applications in Rare-earth-ion-doped Crystals by : Qian Li
Download or read book Quantum Memory Development and New Slow Light Applications in Rare-earth-ion-doped Crystals written by Qian Li and published by . This book was released on 2018 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quantum Computing with Naturally Trapped Sub-nanometre-spaced Ions by : Lars Rippe
Download or read book Quantum Computing with Naturally Trapped Sub-nanometre-spaced Ions written by Lars Rippe and published by . This book was released on 2006 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Defect and Coherent Transient Optical Spectroscopy of Rare Earth Doped Crystals by : Kuang-ming Wang
Download or read book Defect and Coherent Transient Optical Spectroscopy of Rare Earth Doped Crystals written by Kuang-ming Wang and published by . This book was released on 1997 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hybrid Quantum Systems by : Yoshiro Hirayama
Download or read book Hybrid Quantum Systems written by Yoshiro Hirayama and published by Springer Nature. This book was released on 2022-01-06 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents state-of-the-art research on quantum hybridization, manipulation, and measurement in the context of hybrid quantum systems. It covers a broad range of experimental and theoretical topics relevant to quantum hybridization, manipulation, and measurement technologies, including a magnetic field sensor based on spin qubits in diamond NV centers, coherently coupled superconductor qubits, novel coherent couplings between electron and nuclear spin, photons and phonons, and coherent coupling of atoms and photons. Each topic is concisely described by an expert at the forefront of the field, helping readers quickly catch up on the latest advances in fundamental sciences and technologies of hybrid quantum systems, while also providing an essential overview.
Book Synopsis Hyperbolic Metamaterials by : Igor I Smolyaninov
Download or read book Hyperbolic Metamaterials written by Igor I Smolyaninov and published by Morgan & Claypool Publishers. This book was released on 2018-03-23 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hyperbolic metamaterials were originally introduced to overcome the diffraction limit of optical imaging. Soon thereafter it was realized that hyperbolic metamaterials demonstrate a number of novel phenomena resulting from the broadband singular behavior of their density of photonic states. These novel phenomena and applications include super resolution imaging, new stealth technologies, enhanced quantum-electrodynamic effects, thermal hyperconductivity, superconductivity, and interesting gravitation theory analogs. Here I review typical material systems, which exhibit hyperbolic behavior and outline important new applications of hyperbolic metamaterials, such as imaging experiments with plasmonic hyperbolic metamaterials and novel VCSEL geometries, in which the Bragg mirrors may be engineered in such a way that they exhibit hyperbolic properties in the long wavelength infrared range, so that they may be used to efficiently remove excess heat from the laser cavity. I will also discuss potential applications of self-assembled photonic hypercrystals. This system bypasses 3D nanofabrication issues, which typically limit hyperbolic metamaterial applications. Photonic hypercrystals combine the most interesting features of hyperbolic metamaterials and photonic crystals.
Book Synopsis Growth and Coherent Spectroscopy of Europium- and Praseodymium-doped Crystals for Quantum Memory Applications by : Biagio Tumino
Download or read book Growth and Coherent Spectroscopy of Europium- and Praseodymium-doped Crystals for Quantum Memory Applications written by Biagio Tumino and published by . This book was released on 2013 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rare-earth-doped solids are promising materials as light-matter interfaces for quantum applications. In particular, europium-doped yttrium orthosilicate crystal (Eu3+:Y2SiO5) shows coherence properties and a ground-state energy-level structure suitable for quantum memory applications. Within the european project QuRep, spectroscopic investigations of this material are reported in order to determine the optimal conditions (in terms of material's purity or ions concentration) for obtaining high performance quantum memories. Two crystal growth techniques (Czochralski and melting zone) are also used in order to refine the growth conditions for this material. The europium optical transition 7F0 - 5D0 is investigated by high resolution-absorption and photon echo techniques in order to study the absorption coefficient peak, the inhomogeneous linewidth and the optical coherence lifetime as function of different conditions. The hyperfine structure of the two europium isotopes (151Eu and 153Eu) is also analyzed by applying an external static magnetic field. Coherent Raman Scattering measurements are performed in order to measure the hyperfine coherence lifetime in 151/153Eu3+:Y2SiO5 found to be in the range of 10-20 ms at zero magnetic field.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974-07 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thulium Ions in a Yttrium Aluminum Garnet Host for Quantum Computing Applications by : Ijaz Zafarullah
Download or read book Thulium Ions in a Yttrium Aluminum Garnet Host for Quantum Computing Applications written by Ijaz Zafarullah and published by . This book was released on 2008 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rare-earth-doped crystals have been used for optical signal processing and storage applications. In this dissertation, their potential for quantum computing applications is explored. In one quantum computing scheme, information is stored in nuclear spin states and this information is then processed by using optical pulses through the coupling of these nuclear spin states to a common electronic level. To implement this scheme, nuclear spin states and coupling of these nuclear spin states to a common electronic level is required. Preliminary work in rare-earth materials like Pr3+ and Eu3+ has shown promising results regarding their suitability for quantum computing applications. One particular problem with these materials is that their transition wavelengths are only accessible with dye lasers. These lasers are inherently unstable, and currently few available systems exhibit the stability required for quantum computing applications. An alternative choice was to investigate other rare-earth ions like thulium. Thulium has a transition wavelength that can be accessed with diode lasers, which are commercially available, easy to stabilize, and compact. This dissertation is based on our investigations of Tm3+:YAG for quantum computing applications. Investigations involved a detailed characterization of the material. Nuclear spin states, in Tm3+:YAG, were obtained by applying an external magnetic field to the sample. First, interaction of an external magnetic field with the thulium ions at various sites in the crystal was analyzed. This analysis was used to measure the magnetic anisotropy in the material. These results show that it is possible, with the suitable choice of the magnetic orientation and the site in the crystal, to build a working 3-level quantum system. In the demonstration of single qubit operations in Tm3+:YAG, we first theoretically studied the effect of Gaussian spatial beam on the single qubit operations. Later on, we experimentally prepared a single isolated ensemble of ions in the inhomogeneously broadened absorption profile of the medium. This single isolated ensemble of ions was used as a test-bed to implement the single qubit operations. We also isolated two ensembles of ions in the inhomogeneous absorption profile of the medium. The interaction between these two isolated ensembles of ions was also studied.
