Adding Nonlinearity To An Electromagnetic Magnonic Quantum Hybrid Device PDF Download

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Adding nonlinearity to an electromagnetic-magnonic quantum hybrid device

Adding nonlinearity to an electromagnetic-magnonic quantum hybrid device
Author: Pfirrmann, Marco
Publisher: KIT Scientific Publishing
Total Pages: 136
Release: 2020-10-05
Genre: Science
ISBN: 3731510030

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In this book, hybrid systems based on yttrium-iron-garnet (YIG), three dimensional microwave cavity resonators, and superconducting transmon qubits, are investigated by continuous wave and pulsed microwave spectroscopy. Limitations to the magnetic linewidth in the quantum regime are identified and coherent exchange between a magnon and a superconducting qubit are demonstrated. Finally, a first step towards a strongly coupled hybrid system containing all three components is demonstrated.


Quantum Sensing Experiments with Superconducting Qubits

Quantum Sensing Experiments with Superconducting Qubits
Author: Schneider, Andre
Publisher: KIT Scientific Publishing
Total Pages: 170
Release: 2021-06-04
Genre: Science
ISBN: 3731510324

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Quantum sensing is a vast and emerging field enabling in-situ studies of quantum systems and hence the development of quantum hybrid systems. This work creates the fundament of direct superconducting-magnetic hybrid systems by developing a local microwave sensing scheme and studying the influence of a static magnetic field on a superconducting qubit. Finally, a proof-of-principle hybrid system is demonstrated, which opens the path towards superconducting-magnetic quantum circuits.


Quantum Tunneling of Josephson Vortices in High-Impedance Long Junctions

Quantum Tunneling of Josephson Vortices in High-Impedance Long Junctions
Author: Wildermuth, Matthias Micha
Publisher: KIT Scientific Publishing
Total Pages: 160
Release: 2023-09-11
Genre:
ISBN: 373151303X

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In the last decades, superconducting devices have emerged as a promising platform for quantum technologies, including quantum sensing and quantum computing. Their key elements are Josephson junctions, which allow for coherent supercurrent tunneling between two weakly linked superconductors. If such a junction is extended in one direction to a long junction, the superconducting phase difference can vary in space and time and may allow for quantized phase windings that drive supercurrent vortices.


Local Probing of a Superconductor’s Quasiparticles and Bosonic Excitations with a Scanning Tunnelling Microscope

Local Probing of a Superconductor’s Quasiparticles and Bosonic Excitations with a Scanning Tunnelling Microscope
Author: Gozlinski, Thomas
Publisher: KIT Scientific Publishing
Total Pages: 208
Release: 2023-03-24
Genre: Science
ISBN: 3731512793

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Complementary to scattering techniques, scanning tunnelling microscopy provides atomic-scale real space information about a material's electronic state of matter. State-of-the-art designs of a scanning tunnelling microscope (STM) allow measurements at millikelvin temperatures with unprecedented energy resolution. Therefore, this instrument excels in probing the superconducting state at low temperatures and especially its local quasiparticle excitations as well as bosonic degrees of freedom.


Molecular Motor Based on Single Chiral Tripodal Molecules Studied with STM

Molecular Motor Based on Single Chiral Tripodal Molecules Studied with STM
Author: Skolaut, Julian
Publisher: KIT Scientific Publishing
Total Pages: 164
Release: 2023-09-14
Genre:
ISBN: 3731512475

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This work presents a single molecular motor driven by the current in an STM. Its chiral functional group is supposed to perform a rotation in a preferred direction, proven by Binomial tests to be statistically significant. The rotation is proposedly driven by the chiral-induced spin selectivity effect (CISS). However, the studies of the rotation on the dependence on the lateral tip position, voltage and current indicate that he CISS is unlikely to cause the preferred rotation direction.


Light Emission from Single Self-decoupled Molecules in a Scanning Tunnelling Microscope

Light Emission from Single Self-decoupled Molecules in a Scanning Tunnelling Microscope
Author: Rai, Vibhuti Narayan
Publisher: KIT Scientific Publishing
Total Pages: 150
Release: 2022-10-04
Genre: Science
ISBN: 3731512017

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In this work, a clear pathway is presented to achieve well-defined electronically decoupled chromophores from metallic leads without requiring additional insulating layers. To study such self-decoupled molecules, STM equipped with an efficient light detection setup has been used. Results show that the chromophores mounted on tripodal molecular platforms adsorbed on a gold surface present well-defined and efficient electroluminescence down to the single-molecule level.


Hybrid Quantum Systems

Hybrid Quantum Systems
Author: Yoshiro Hirayama
Publisher: Springer Nature
Total Pages: 352
Release: 2022-01-06
Genre: Science
ISBN: 9811666792

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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.


Optomagnonic Structures: Novel Architectures For Simultaneous Control Of Light And Spin Waves

Optomagnonic Structures: Novel Architectures For Simultaneous Control Of Light And Spin Waves
Author: Evangelos Almpanis
Publisher: World Scientific
Total Pages: 370
Release: 2021-01-18
Genre: Science
ISBN: 9811220069

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Understanding, controlling and, more importantly, enhancing the interaction between light (photons) and spin waves (magnons) can be, among others, a step towards the realization of magnon-mediated microwave-to-optical transducers for quantum computing applications or hybrid solid-state spintronic-photonic interconnections. In this respect, the development of novel composite multifunctional micro/nanostructures — so-called optomagnonic — which simultaneously control optical and spin waves and enhance their interaction, is particularly attractive.This book constitutes a collective work, comprising seven chapters from leading researchers in the field of optomagnonics and related areas. Apart from exciting recent developments, it provides the necessary fundamental knowledge in an explanatory manner and, therefore, it is accessible to non-experts. It is suitable for PhD students, post-docs, and researchers who are willing to get engaged in optomagnonics, while selected parts could also serve as lecture material for advanced courses. With increasing demand for miniaturized optomagnonic devices, this book will be an important resource to researchers working on optomagnonics, magneto-optics, spintronics, as well as on hybrid micro/nano devices for information processing.


Spin Waves

Spin Waves
Author: Daniel D. Stancil
Publisher: Springer Science & Business Media
Total Pages: 348
Release: 2009-04-05
Genre: Technology & Engineering
ISBN: 0387778659

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This book begins by introducing magnetism and discusses magnetic properties of materials, magnetic moments of atoms and ions, and the elements important to magnetism. It covers magnetic susceptibilities and electromagnetic waves in anisotropic dispersive media among other topics. There are problems at the end of each chapter, many of which serve to expand or explain the material in the text. The bibliographies for each chapter give an entry to the research literature.


Handbook of Spintronics

Handbook of Spintronics
Author: Yongbing Xu
Publisher: Springer
Total Pages: 0
Release: 2015-10-14
Genre: Science
ISBN: 9789400768918

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Over two volumes and 1500 pages, the Handbook of Spintronics will cover all aspects of spintronics science and technology, including fundamental physics, materials properties and processing, established and emerging device technology and applications. Comprising 60 chapters from a large international team of leading researchers across academia and industry, the Handbook provides readers with an up-to-date and comprehensive review of this dynamic field of research. The opening chapters focus on the fundamental physical principles of spintronics in metals and semiconductors, including an introduction to spin quantum computing. Materials systems are then considered, with sections on metallic thin films and multilayers, magnetic tunnelling structures, hybrids, magnetic semiconductors and molecular spintronic materials. A separate section reviews the various characterisation methods appropriate to spintronics materials, including STM, spin-polarised photoemission, x-ray diffraction techniques and spin-polarised SEM. The third part of the Handbook contains chapters on the state of the art in device technology and applications, including spin valves, GMR and MTJ devices, MRAM technology, spin transistors and spin logic devices, spin torque devices, spin pumping and spin dynamics and other topics such as spin caloritronics. Each chapter considers the challenges faced by researchers in that area and contains some indications of the direction that future work in the field is likely to take. This reference work will be an essential and long-standing resource for the spintronics community.